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What are the risks of exposed building penetrations on data centres?

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by Matthew Jones

Matthew Jones

Commercial Director

Exposed building penetrations can be problematic for any type of building, potentially causing water damage and impacting performance. For mission-critical facilities such as data centres, the consequences of exposed building penetrations can be even more significant. They can lead to equipment damage, system downtime and service disruption.

At Jones Weatherproofing, our cold-applied liquid weatherproofing can be applied quickly and to any surface, including GRP roofs. It creates a strong and durable seal around exposed building penetrations, helping to provide long-term protection to data centre buildings and the sensitive equipment that they contain.

Below are the answers to frequently asked questions about the risk of exposed building penetrations on data centres.

What are the risks of exposed penetrations?

When a building penetration is exposed, it becomes vulnerable to moisture ingress. This can lead to a range of problems, including:

  • Leaks – Water from precipitation can enter through an exposed penetration, allowing moisture, including damp or drips, into the building.
  • Condensation – Gaps in the building fabric can impact performance, allowing interstitial condensation to form within walls, roofs or floors.
  • Damp – Persistent moisture from leaks or condensation can lead to persistent damp, which can damage equipment and cause problems such as mould, mildew and rot.
  • Structural damage – Moisture within the building envelope can contribute to deterioration, including timber rot and metal corrosion.
  • Contents damage – Water ingress can damage the items inside the building. In a data centre, this could mean expensive servers and other critical technology.
  • Equipment downtime – Even small amounts of water ingress can damage sensitive equipment, resulting in costly downtime and operational disruption that can affect a data centre’s reliability and reputation.
  • Poor indoor air quality – Damp conditions can encourage the growth of mould and mildew. This can negatively affect indoor air quality for the people inside the building.
  • Impact on occupant wellbeing – Leaks, damp, mould and poor indoor air quality can create an uncomfortable environment and may contribute to health issues for occupants. They can also affect a building’s thermal performance, and damp-related structural damage can create unsafe working conditions.

How does water ingress affect building penetrations?

Exposed or damaged penetrations allow water to get inside the building envelope. Once moisture is present, it can cause deterioration, making the penetration more vulnerable to further water ingress and creating a cycle of ongoing damage.

Can building penetrations be damaged by people working on site?

Yes. Building penetrations – particularly exposed penetrations – are often damaged by people working on site. This can be during construction or as part of ongoing maintenance once the building is complete. For this reason, building penetrations should be sealed with a resilient material that can withstand accidental impact, foot traffic and general site activity.

The potential for damaged building penetrations also highlights the importance of programme sequencing during construction. When penetration weatherproofing is completed at the appropriate stage of the build programme, it minimises the risk of damage and subsequent remedial works.

How can damaged building penetrations delay a project?

When building penetrations become damaged, they need to be repaired and resealed as quickly as possible to minimise risks to the building structure and contents.

While sealing a penetration with the Jones Weatherproofing cold-applied liquid weatherproofing can be quick, gaining access to the affected area is often more complicated.

Depending on the building design, accessing a penetration may require removing adjacent installations or finishes. These will then need to be reinstalled once the penetration is sealed. This additional work can lead to programme delays and added costs.

How can exposed building penetrations lead to water damage to equipment inside a building?

An exposed building penetration can take many forms. It might be a hairline gap between a service and the surrounding building fabric, or it can be a large opening created for a service riser. While it is easy to see how moisture can enter through larger gaps, it’s important to remember that even small openings can provide a pathway for water and moisture ingress.

Once water enters the building envelope, it can travel through the construction layers and into the building interior, where it may drip onto sensitive equipment.

Even small amounts of moisture can accumulate inside building elements, damaging building materials and widening the pathway for moisture. Over time, this can increase the likelihood of leaks and water ingress, potentially leading to damage or disruption.

 

 

Why should building penetrations be protected from the earliest stages of a data centre project?

The construction of a data centre is often quick, with multiple trades working closely together. If building penetrations are left unprotected, or weatherproofing is delayed until later in the programme, the openings are more likely to be exposed to weather damage or accidental damage.

There’s also the chance that if a building penetration is left unsealed, other equipment or finishes may be installed over it. Installing the weatherproofing layer may then require items to be removed to provide access, then reinstalled, leading to delays and added labour costs.

Weatherproofing penetrations at the right time can help maintain the integrity of the building envelope throughout the build and protect it from weather ingress. It also reduces the likelihood of remedial works and helps to avoid programme delays.

What is the best way to weatherproof building penetrations on data centres?

There are many ways to seal building penetrations in data centres. Traditional systems, such as rigid or “dog-kennel” style enclosures, have been used in the past. But they can be bulky and difficult to maintain. They also limit flexibility where service layouts may change during the build.

In data centres, where service density is high and project requirements can change, a more adaptable approach to weatherproofing is often required.

At Jones Weatherproofing, we use cold-applied liquid weatherproofing based on unsaturated polyester resins. It is suitable for all roof types, including GRP, and creates a permanently resilient, UV-stable seal that provides long-term protection around building penetrations. The system is versatile – it can be adapted to suit last-minute changes to penetration configurations in new-build applications and is also suitable for sealing around penetrations in existing data centres.

How can I learn more about reducing the risk of exposed penetrations on data centres?

The team at Jones Weatherproofing has extensive experience in weatherproofing penetrations on data centres and other mission-critical buildings. To find out more about our weatherproofing system, or discuss how we can help you reduce the risk of exposed penetrations, please get in touch.

What is BROOF(t4)? A guide to roof fire classification and compliance

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by Jamie Sporcic

Jamie Sporcic

Senior sales manager

Fire safety is a critical consideration for all buildings. As regulations and specifications have tightened in recent years, so has the need to demonstrate compliance. For roofs, fire safety standards have taken several forms, including the BROOF(t4) classification.

What is BROOF(t4)?

BROOF(t4 )is a fire classification that assesses a roof’s resistance to external fire sources, including burning embers and nearby fires. It is the highest classification for UK roof performance. It indicates that a complete roofing system – the combination of deck, vapour control layer (VCL), insulation, underlay, finishes and other treatments – has passed stringent testing.

What does BROOF(t4) testing involve?

External fire performance of roofs is assessed using test methods defined in CEN/TS 1187, with results classified in accordance with BS EN 13501-5. Testing must be carried out by an accredited third-party organisation.

There are four different tests defined by CEN/TS 1187. These tests use a burning brand – a standardised burning object – as the flame source. During each test, samples are exposed to realistic fire scenarios that simulate external fire conditions, such as airborne embers or flames from adjacent structures.

  • t1: Burning brands
  • t2: Burning brands with wind
  • t3: Burning brands with wind and supplementary radiant heat
  • t4: A two-stage exposure incorporating burning brands, wind and supplementary radiant heat

Classification is based on a range of performance criteria observed during testing under defined conditions. These include flame spread, fire penetration and burn characteristics.

The t4 test is commonly used in UK guidance, with BROOF(t4) being the highest classification achievable under EN 13501-5 for the external fire performance of roofs. This indicates that the roof system has demonstrated a high level of resistance to external fire spread under the specified test conditions. C, D, E and F classifications may also be granted to a roof system. FROOF(t4) is the lowest rating and indicates that no performance was determined.

Systems must be tested as a complete build-up. Any changes to the specification will require the complete roof system to be re-tested.

Is BROOF(t4) a requirement in the UK?

BROOF(t4) is the classification most commonly referenced in UK guidance and specifications. BROOF(t1) is often used in other countries or for specific applications.

A classification of BROOF(t4) demonstrates compliance for applications where roof coverings must meet specific performance standards. It is commonly used within fire safety guidance across the UK, including Approved Document B: Fire Safety (England).

Requirement B4 of Approved Document B (Volumes 1 and 2) states that the external envelope of a building should not:

  • Contribute to undue fire spread from one part of a building to another part.
  • Provide a medium for the spread of fire to adjacent buildings.
  • Be readily ignited by fires in adjacent buildings.

For a roof system to be considered “unrestricted” in use, Approved Document B states that it must achieve the BROOF(t4) classification. This applies across most building types, particularly those where proximity to other properties or increased fire risk requires the highest level of fire performance.

Similar guidance exists for the rest of the UK, including Approved Document B: Fire Safety (Wales), the Technical Handbooks (Section 2: Fire) in Scotland and Technical Booklet E: Fire Safety (Northern Ireland).

 

Complex service riser weatherproofed in London

 

Is BROOF(t4) the same as a Euroclass or Class 0 rating?

It is a common misconception that BROOF(t4) is interchangeable with the Euroclass B rating. However, they are not the same.

  • Euroclass B is a product classification under BS EN 13501-1. It measures the reaction to fire of individual materials.
  • BROOF(t4) is required by BS EN 13501-5 and assesses the external fire resistance of a complete roof system.

As has been demonstrated in real-world fire events and full-scale testing, an individual product’s fire performance does not always reflect how a complete system will behave in a fire. The interaction of materials is a critical consideration – and that is why BROOF(t4) testing is so important.

Class 0 is an older fire classification based on testing methods in BS 476. It was used to assess surface spread of flame and fire propagation characteristics on individual building materials and was widely referenced in earlier guidance. However, it does not assess reaction to external roof fire exposure, and it has largely been superseded by other fire classification systems.

What does BROOF(t4) mean for localised weatherproofing?

As already discussed, BROOF(t4) classification applies to a complete tested roof system, rather than to individual components or localised detailing.

Penetrations, joints and interfaces, along with their weatherproofing treatments, are therefore not typically assessed during fire testing. Instead, they must perform in a way that is compatible with the overall roof build-up.

Products used for detailing, such as liquid-applied weatherproofing systems, should be selected to ensure they are compatible with the wider roof assembly and do not negatively impact its external fire performance.

One way to do this is to use products that have been used within roof assemblies that achieve BROOF(t4) classification. This provides confidence that the detailing is compatible with compliant roof systems, provided it is installed in accordance with the tested build-up and relevant application guidance.

Does the Jones Weatherproofing system have BROOF(t4) classification?

As fire performance depends on the complete roof system, including the substrate, insulation and configuration, each application must be considered individually.
Jones Weatherproofing systems have been tested as part of complete roof assemblies that have achieved BROOF(t4) classification in accordance with BS EN 13501-5:2016.

These test results demonstrate that Jones Weatherproofing systems can form part of roof assemblies achieving BROOF(t4) when installed as part of a tested configuration.
For complex environments such as data centres, where high service densities and late-stage design changes require adaptable detailing, Jones Weatherproofing can help ensure appropriate specification and integration with the wider roof system.

To discuss the fire performance of the Jones Weatherproofing system in more detail, review our test reports or learn how we can support the weatherproofing of an upcoming mission-critical projects such as data centres, please get in touch.

A complete guide to BS 6229:2025

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by Matthew Jones

Matthew Jones

Commercial Director

Flat roofs are often used in the built environment, and they are a common feature in mission-critical projects such as data centres, transport hubs, hospitals and research facilities. In these locations, performance, reliability and durability are essential – any failure can have serious consequences.

That’s where BS 6229 comes in. This British Standard provides best-practice guidance for the design, construction and maintenance of flat roofs, helping to reduce risk and improve performance.

The standard was updated in 2025 to reflect changes in construction methods, materials and performance requirements. At Jones Weatherproofing, we keep a close eye on developments like these, and we are committed to ensuring our liquid-applied weatherproofing system is in line with the latest industry recommendations.

In this guide, we take a close look at BS 6229:2025 – what it is, what changed in the latest update and what those changes mean for architects, designers, contractors and weatherproofing teams.

What is BS 6229:2025?

BS 6229:2025 is the code of practice for flat roofs with continuously supported flexible waterproof coverings.

It provides guidance about how flat roofs should be designed and constructed. and it aims to mitigate risks such as poor drainage, inadequate ventilation and ineffective vapour control. Because BS 6229 considers the complete lifecycle of a flat roof, it also includes guidance on inspection and maintenance.

The guidance included in BS 6229 will be useful for anyone involved in the design, specification, installation or maintenance of flat roofing, including:

  • Architects and designers
  • Specifiers
  • Contractors and installers
  • Weatherproofing specialists
  • Maintenance service providers
  • Building owners
  • Construction product manufacturers and suppliers

What types of roof constructions are covered by BS 6229:2025?

The standard applies to all flat roofs that use continuously supported flexible waterproof coverings. This includes roofs supported by:

  • Heavy structures such as concrete slabs
  • Lightweight decks (metal or timber)

It also covers curved roofs with a pitch of up to 10 degrees.

Service risers being weatherproofed on The Apex Tribecca

 

What has changed in the BS 6229:2025 update?

Following a five-year review process, which involved input from across the roofing sector, the latest version, BS 6229:2025, was published in December 2025. It replaced the previous version, BS 6229:2018.

The update aims to improve flat roof performance, determine responsibilities and increase safety. It includes revisions to Clause 4 (design), Clause 5 (materials) and Clause 7 (care and maintenance). Terminology and definitions have also been clarified to help improve understanding across the roofing sector.

Matt Jones, commercial director at Jones Weatherproofing, explains that some of the changes are critical to the weatherproofing, “In terms of flat roof weatherproofing, some of the key changes to BS 6229 are about deck preparation and surface quality,” he says.

Deck preparation and documentation

The updated standard highlights the importance of careful deck design and preparation. It now requires a level survey and documented handover for decks or slabs

“This helps ensure that defects are identified early and that responsibility is clearly defined,” Matt says. “Knowing the condition of the roof deck can affect the way we approach weatherproofing, so the information these surveys provide can be instrumental in keeping the structure and its contents protected,” he adds.

Surface regularity

The surface quality is another important factor in long-term roof performance and weatherproofing.

Matt explains, “Uneven roof surfaces can lead to ponding or cause stress points in roofing membranes, so the surface quality of a roof is key in how weatherproofing performs long-term.”

Surface regularity (SR) classes describe how flat a roof deck is, based on defined tolerances. SR1 is the highest standard, while SR2 is generally acceptable for most roofing applications. The updated standard places greater emphasis on specifying and verifying surface regularity.

“An irregular surface doesn’t necessarily mean a roof can’t be effectively weatherproofed,” Matt adds. “The SR classes help the weatherproofing team better understand the flat roof’s specific requirements.”

Other changes to the new BS 6229:2025 include:

  • Roof falls and drainage – To support drainage on flat roofs, there is now a minimum 1:80 finished fall for general roof areas and internal gutters. The standard gives additional detail about prefabricated and site-formed falls. It also clarifies responsibility for back falls, which should help to improve installation practices and ensure that flat roofs don’t have unintended back falls.
  • Blue roofs – Blue roofs are designed to temporarily store rainwater and release it in a controlled way. BS 6229:2025 provides new guidance based on recent blue roof innovations and flat roof water management.
  • Thermal performance – The new guidance includes a 2.5% insulation increase for inverted warm roofs. This aligns with other energy efficiency targets, such as Approved Document L: Conservation of Fuel and Power.
  • Condensation control – The updated standard addresses condensation risk in accordance with BS 5250:2021, the code of practice for the management of moisture in buildings.
  • Fire safety – Fire performance has been reinforced in line with building regulations, including updated combustibility requirements within the roof build-up and clearer expectations for assessing fire performance. The revised standard also states that cross-laminated timber (CLT) decks should be avoided where possible, due to concerns around its fire behaviour, as well as moisture management and long-term durability. Where CLT is used, careful design and risk management are essential.

The update also highlights the importance of:

  • Efficient information exchange between project teams
  • High-quality installation standards
  • Effective maintenance planning

Together, these changes should help to improve the quality and performance of flat roofs across the UK.

Learn more about BS 6229:2025

To view the full version of the BS 6229:2025, the standard can be purchased from the British Standards Institute. The National Federation of Roofing Contractors (NFRC) has also produced a 16-page guide to the updated standard.

At Jones Weatherproofing, our team has implemented the changes to BS 6229:2025 across all of our projects, and our weatherproofing experts are available to provide advice and guidance on meeting the latest requirements.

Get in touch to discuss how Jones Weatherproofing can support the weatherproofing of your upcoming projects.

Using liquid weatherproofing to protect mission-critical buildings from water ingress

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by Jamie Sporcic

Jamie Sporcic

Senior sales manager

In mission-critical buildings, weatherproofing plays an important role in preventing unplanned downtime and reducing risk. Whether it’s a data centre, hospital, telecommunication hub or another building where continuity of service is essential, the building envelope must effectively protect the structure and its contents from the elements.

Reliable weatherproofing around building penetrations seals the structure, preventing rainwater ingress and potential damage to equipment, building infrastructure and the building fabric. Specifying liquid weatherproofing, applied by a skilled professional, provides long-term performance, durability and reduced risk.

Below are the answers to some frequently asked questions about weatherproofing mission-critical buildings with liquid weatherproofing:

What is liquid weatherproofing?

In liquid weatherproofing, a liquid is applied in situ to create a seal around building penetrations. It can also be used at junctions or over damaged areas. Being a liquid, the weatherproofing solution can be worked into tight spaces and around complex shapes. It then cures to create a resilient seal that helps prevent water ingress at some of the building envelope’s most vulnerable points.

At Jones Weatherproofing, we use a tried-and-tested liquid weatherproofing resin that is cold-applied and solvent-free. This makes it suitable for all roof types, including GRP roofs. It requires no heat to apply or cure and hardens quickly – in less than an hour.

Why is liquid weatherproofing the best choice for protecting penetrations in mission-critical buildings?

For mission-critical buildings, protecting penetrations is especially important because these are often the most vulnerable points for water ingress. In these locations, even minor leaks can lead to costly disruption, damaged equipment or unplanned downtime.

Liquid weatherproofing is particularly suited to these applications because it is a versatile material that can be easily adapted to suit last-minute changes to penetration configurations. This flexibility helps to ensure that vulnerable details can be precisely sealed, even where service layouts are complex or have changed since initial installation.

At Jones Weatherproofing, our liquid weatherproofing material is based on unsaturated polyester resins and is solvent-free, making it suitable for use on all roof types, including GRP flat roofs. It is permanently resilient, UV-stable and, when it cures, it is open for vapour diffusion, helping to provide long-term protection at building penetrations.

What makes penetrations in mission-critical buildings so vulnerable to water ingress?

Mission-critical buildings typically have a very high number of building penetrations. These allow services such as electricity, data, water and waste to move in and out of the building effectively, while HVAC services, manufacturing plant, chimneys, structural elements and other elements may also penetrate the building fabric. Each of these penetrations is a potential source of water ingress and weather-related damage.

In mission-critical buildings, water damage isn’t just an inconvenience – it can be catastrophic. These buildings house essential services, from financial data in a data centre and life-saving hospital equipment to one-of-a-kind laboratory research. A leak can damage expensive equipment or the building fabric, cause delays or put occupants at risk.

 

Weatherproofing solutions in extreme conditions doha airport
Access hatch installation for Etihad stadium

 

How does liquid weatherproofing compare with off-the-shelf weatherproofing products?

Traditional weatherproofing systems, such as dog-kennel-style detailing, factory-made cabinets and metal flashings, are rigid and typically rely on pre-formed materials that fit around penetrations. They can take up a lot of valuable roof space, and there is a large risk of gaps, joints or weak points. In addition, the layout of penetrations when using these systems cannot be easily changed once they are installed.

In contrast, Jones Weatherproofing’s liquid-applied weatherproofing incorporates building penetrations as part of the building fabric. It is applied directly to building penetrations and can be used around complex shapes and irregular openings. Layout changes can be easily accommodated, resulting in a continuous, fully bonded layer that requires minimal maintenance.

Can liquid weatherproofing be applied around complex or non-standard roof details?

Yes. One of the main benefits of liquid weatherproofing is its ability to be applied around complex or non-standard roof details.
Because the material is a liquid, it can be applied in any configuration and around penetrations of any shape or size. It then cures to form a tight, resilient layer that is fully bonded to the substrate and the penetrating element, creating a continuous seal, regardless of shape or complexity.

How can weatherproofing risk be further reduced for mission-critical buildings?

For mission-critical buildings, long-term reliability is just as important as initial performance. At Jones Weatherproofing, our fully bonded liquid weatherproofing system offers long-term reliability and protection from water ingress. It’s also backed by a 25-year warranty, which can help to reduce risk and provide peace of mind that the penetrations will be supported long after project handover.

When should weatherproofing be considered during the construction programme of a mission-critical building?

The responsibility of weatherproofing building penetrations is often passed along from stakeholder to stakeholder throughout a building programme. This can mean that contractors are left to deal with it at the end of a project, when problems such as water ingress and damage to the building fabric become apparent. In these cases, access to the substrate may be difficult, requiring certain elements to be removed and later reinstalled. Remedial works may also be required to repair damage to the building structure.

With so much at stake in mission-critical buildings, early engagement with a weatherproofing specialist is highly recommended.

While the Jones Weatherproofing team can take on weatherproofing work at any stage of a project, the best results are achieved when we are consulted from the very early planning stages. We can carry out site surveys, review the building penetration requirements and advise on programming and coordination, helping to avoid last-minute design changes and remedial works and reducing overall risk.

How can I find out more about using liquid weatherproofing to protect mission-critical buildings from water ingress?

As experts in weatherproofing building penetrations, Jones Weatherproofing has worked on a wide range of mission-critical buildings – from data centres, energy facilities, hospitals and research labs to airports and transport hubs.

To learn more about our liquid weatherproofing system, or to discuss how we can support the weatherproofing for any upcoming mission-critical projects, please get in touch.

How liquid-applied weatherproofing preserves a building’s architectural vision

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by Jamie Sporcic

Jamie Sporcic

Senior sales manager

Maintaining architectural intent throughout a construction project can be challenging – particularly around roof and vertical penetrations as well as other interfaces.

Whether vertical or at roof level, these complex details can disrupt clean lines and carefully considered aesthetics if they are not properly planned and installed. If weatherproofing is not carried out effectively, it can also impact building performance and durability.

A well-designed weatherproofing strategy plays a key role in preserving a building’s architectural vision. At Jones Weatherproofing, our liquid-applied weatherproofing provides an effective, visually unobtrusive way to protect the building fabric while supporting the overall design intent.

Why some weatherproofing methods may compromise design intent

Weatherproofing may seem like a straightforward part of a build, but it can be surprisingly complex, especially when buildings contain multiple penetrations, such as:

  • Service penetrations
  • Cable trays
  • Plant and equipment
  • Flues and chimneys
  • HVAC equipment and terminals
  • Roof access hatches and service walkways
  • Rooflights
  • Structural supports

As services pass in and out of the building envelope, they can disrupt the visual appearance – penetrating cladding in undesirable locations or introducing obtrusive, inconsistent detailing.

Meanwhile, roof penetrations can create visible interruptions to the roofline. They may look cluttered or bulky, depending on the type of weatherproofing that’s used. For example, traditional dog-kennel-style rooftop enclosures take up a lot of space and are typically prefabricated, so they are unlikely to blend in with the rest of the building’s design.

The role of liquid-applied weatherproofing in maintaining design intent

At Jones Weatherproofing, our liquid-applied weatherproofing system is flexible and versatile, making it suitable for use with all types of roofing materials, including GRP.

Because it is applied in situ and fully bonded to the substrate, the liquid-applied weatherproofing can be tailored to match complex shapes and layouts, without relying on prefabricated components or standardised details.

This allows each penetration or interface to be treated individually, while also providing a consistent, seamless finish across the whole roof area.

A liquid-applied approach allows each penetration or interface to be treated individually, explains Matt Jones, commercial director at Jones Weatherproofing, “Every penetration is different. With our liquid-applied weatherproofing system, we can form the detail around the penetrations, rather than forcing the penetrations into a standard system.”

Jones Weatherproofing also offers a colour-matching service, which means the waterproofing finish can be specified to blend in with surrounding materials or provide a deliberate contrast. This is ideal for retail outlets or other projects that require visual consistency and brand identity.

 

Complex service riser weatherproofed in London

 

The importance of early engagement in preserving design intent

Although weatherproofing is often left until the end of a project, the best results can be achieved when the weatherproofing team is consulted from the planning phase.

In the early stages of a project, the Jones Weatherproofing team will work closely with architects and designers to provide weatherproofing expertise – covering everything from weatherproofing methods and upstands to penetration layouts and project programming. This helps to avoid costly changes later on and reduces the risk of compromising the design.

As Matt explains, “The earlier we’re involved, the easier it is to align the weatherproofing with the architectural intent.”
He warns that holding off on weatherproofing may lead to remedial work or compromises. “We’re often brought in late, when other installations are blocking access to the penetrations or open penetrations are already experiencing water ingress. In these cases, installations may need to be removed, damage may need to be repaired, and compromises may need to be made.”

Maintaining your architectural vision with liquid-applied weatherproofing

As a globally trusted partner for weatherproofing, Jones Weatherproofing understands the importance of effective weatherproofing for building performance – and that visual impact also matters.

Our team works closely with architects and specifiers to develop tailored weatherproofing strategies that support both performance and design.

Get in touch to discuss how we can support the design of the weatherproofing for your upcoming projects.

Why weatherproofing needs to be part of the building design process

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by Jamie Sporcic

Jamie Sporcic

Senior sales manager

Effective weatherproofing protects the building envelope, reduces risk and prevents costly repairs and disruption. While weatherproofing is often considered late in a project, the best strategy is to make it part of the building design process – including early engagement with a weatherproofing specialist.

Working with a weatherproofing specialist from the design stage:

  • Gives a better understanding of the building’s penetrations, their placement and weatherproofing requirements.
  • Provides an early opportunity to flag potential problems and find workarounds.
  • Enables improved on-site sequencing and collaboration with other trades.
  • Helps to keep the project on schedule and within budget.

In this post, we’ll cover some of the most frequently asked questions about early engagement with a weatherproofing specialist.

When should weatherproofing be considered in the building plan?

The best time to consider weatherproofing in a building project is as early as possible. At the design stage, the exact requirements for building penetrations may not be fully understood, but working with a weatherproofing specialist can provide valuable insight.

The Building Safety Act (BSA) 2022 introduced three gateways covering planning, pre-construction and pre-occupation. Weatherproofing must be considered at every stage, starting at design. Poor weatherproofing can compromise a building’s structural integrity and the safety of people and equipment. Good advice and high-quality weatherproofing are therefore critical for high-risk buildings, such as high-rise structures, and mission-critical facilities like data centres.

If the project is past the design stage and work has started without consulting a weatherproofing specialist, the principal contractor can mitigate risk by bringing in an expert at this stage. Although this may reveal the need for remedial work or highlight other issues, it’s better to identify and address these problems as soon as possible rather than letting them become more complex and costly.

What are the benefits of early engagement with a building weatherproofing specialist?

Engaging early with a building weatherproofing specialist gives you a better idea of what the weatherproofing will entail and when it should be implemented. The specialist can work with you to understand project objectives and advise on blending the weatherproofing with complex penetrations without compromising the building’s aesthetics.

The specialist can also advise on achieving compliance with national standards and compile the technical information needed to maintain the golden thread of building safety.

Other benefits to early engagement include:

  • Avoiding water damage during construction, preventing damp, mould, mildew and rot.
  • Improving on-site scheduling, collaboration with other trades and project sequencing.
  • Avoiding the need for remedial works.
  • Clarifying liability.
  • Keeping project delivery on track.
  • Ensuring work is backed by a warranty.

 

Three technical leads examining roof details for a roofing project

 

What are the risks of treating weatherproofing as an afterthought?

When weatherproofing is treated as an afterthought, projects often face costly remedial work to fix leaks, damp or water ingress. In many cases, building elements installed over the penetration must be removed to allow the weatherproofing team access. Remedial work may also compromise the original design intent.

Other risks include:

  • Compromised structural integrity due to prolonged exposure to moisture.
  • Increased likelihood of mould, mildew and rot affecting the building and its occupants.
  • Project delays and increased costs.
  • Potential health and safety issues for workers and future occupants.

Who is responsible for installing and weatherproofing building penetrations?

Building penetrations and their weatherproofing are often treated as afterthoughts because responsibility for them can be unclear. Engaging a specialist weatherproofing contractor early helps eliminate this ambiguity, ensuring that penetrations are correctly installed and sealed, and that work is coordinated with other trades.

How should weatherproofing be coordinated between trades?

With early engagement, weatherproofing contractors can coordinate with architects and specifiers, as well as all on-site trades, including M&E contractors, roofing contractors and cladding installers, to ensure that weatherproofing is carried out at the right time.
By installing and sealing penetrations in the correct sequence alongside other building elements, the weatherproofing contractor can prevent water damage and access the penetration easily, without having to remove completed installations that could otherwise be in the way. Early coordination also helps to reduce congestion on site, especially towards the end of a project when multiple trades are vying for limited space on the roof.

What happens if there are last-minute changes to the penetrations’ design and weatherproofing?

Early engagement with a weatherproofing specialist doesn’t mean that all decisions made at the design stage are set in stone. A building’s penetrations and weatherproofing requirements can change as a project progresses, and the weatherproofing contractor will work with you throughout the project, adjusting the plan as necessary.

Here at Jones Weatherproofing, we offer a completely bespoke weatherproofing system that allows for last-minute changes to be accommodated easily – without compromising performance, the project schedule or compliance.

What’s the most flexible way to weatherproof building penetrations?

Traditional penetration weatherproofing methods primarily rely on roofing cabinets and ready-made fittings. These don’t provide the flexibility that’s often required in real-world projects or to accommodate last-minute changes.

At Jones Weatherproofing, we use a liquid weatherproofing solution that provides flexibility and long-term durability. It can be applied directly to, and around building penetrations, and is compatible with most roofing materials, including GRP.

Because it is a cold-applied liquid, our system provides a bespoke finish that fits around any building details. Once cured, it forms a continuous and fully bonded layer that is UV-stable and requires minimal maintenance.

How do I start planning a weatherproofing strategy?

To create a robust weatherproofing strategy, architects should engage with an expert early in the design process. By specifying a Jones Weatherproofing solution, you can have peace of mind that your design vision will be fully respected and that the building is protected against water ingress and other risks.

Get in touch to discuss how we can support the weatherproofing for any upcoming projects.

A guide to liquid weatherproofing penetrations on mission-critical buildings

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by Jamie Sporcic

Jamie Sporcic

Senior sales manager

In mission-critical buildings, effective penetration weatherproofing is crucial. From data centres and healthcare facilities to transport hubs, power stations, water treatment works, emergency services, military facilities and government buildings, there is zero tolerance for failure.

These structures must protect occupants, as well as the systems, services and specialist equipment they contain – supporting commercial continuity, public safety and national security. That’s why effective and reliable liquid waterproofing is key. Even a small amount of water ingress can cause issues, compromising the building fabric, disrupting operations and, in the worst cases, posing safety risks or causing loss of service.

In this guide, we will take a comprehensive look at liquid waterproofing – or liquid weatherproofing, which is a more accurate description – covering what it is, why it’s important and how to ensure that a building’s penetrations are fully protected from the elements.

Beyond waterproofing – what liquid weatherproofing really means

Liquid waterproofing or liquid weatherproofing? The two terms seem like they mean essentially the same thing. However, in mission-critical buildings, treating them as interchangeable could mean the difference between a dry, reliable facility and one where water ingress causes operational disruption, safety risks and costly damage.

Matt Jones, commercial director at Jones Weatherproofing, explains the difference between liquid weatherproofing and liquid waterproofing: “Liquid waterproofing typically aims to protect a single element of a building from water ingress, stopping water under standard conditions.

In contrast, liquid weatherproofing takes a more holistic approach, considering how water can move across surfaces, as well as through joints and – particularly relevant to Jones Weatherproofing – building penetrations. The purpose of liquid weatherproofing is to protect the building, its occupants and its systems, helping to ensure performance and continuity over the long term.”

Liquid weatherproofing vs liquid waterproofing

Liquid waterproofing

  • Applied to a single surface or building element
  • Prevents water from permeating the surface it’s applied to
  • Stops water at the point of application

Liquid weatherproofing

  • Accounts for complex wall or roof build-ups, including penetrations
  • Considers rain, wind-driven rain, snow, thermal fluctuations and building movement
  • Takes a holistic approach to stopping water ingress

Why liquid weatherproofing is essential for mission-critical buildings

Mission-critical buildings must be resilient, reliable and continuously operational. They often contain high-tech and highly sensitive equipment that cannot tolerate water ingress. In addition, occupant safety and wellbeing are critical – poor working conditions such as damp, draughts and poor air quality can undermine operational continuity.

Liquid weatherproofing addresses these risks by forming a seamless and reliable barrier across the building penetrations – including service risers, cable trays, pipes, ductwork, ventilation shafts and access hatches. This provides long-term protection against water ingress and helps mission-critical buildings perform safely and reliably for years to come.

The potential consequences of poorly weatherproofed buildings

Matt notes that in any building, minor leaks can quickly escalate into serious issues such as interior damage, rot and deterioration of the building fabric. He adds: “In mission-critical buildings, water damage cannot be allowed to start or escalate. Even minor water ingress can disrupt essential services, damage equipment and compromise the building’s ability to operate safely.”

When a building and its penetrations are not suitably weatherproofed, the problem goes far beyond physical damage. In mission-critical buildings, operational disruption can cause downstream problems for customers and users while also damaging the facility’s reputation.

There are safety hazards caused by poor indoor air quality, water on the floor causing slip hazards, and the potential for damaged elements of the building to fall and cause damage to property or people. Inadequate weatherproofing and leaks may also reduce the energy efficiency of the building envelope, making it more expensive to maintain a comfortable temperature.

In addition, the cost of repairs, including the long-term damage caused by undetected leaks, should be considered. For example, if a leak goes unnoticed in a wall, riser or roof, it can lead to hidden corrosion, rot or deterioration. By the time these issues are discovered, repairs are often even more complex, disruptive and expensive than addressing the weatherproofing risk properly from the outset.

 

 

Effective liquid weatherproofing and the benefits of early engagement

For mission-critical buildings, the most effective approach to weatherproofing is to start at the very beginning. Bringing a specialist such as Jones Weatherproofing into the project at the planning stage means better detailing, smoother programme coordination and reduced risk, helping to avoid last-minute design changes or costly remedial works further down the line.

Matt explains: “Early engagement with the weatherproofing team allows for thorough surveys and site reviews, as well as improved coordination between the design team and on-site trades.”

That said, architects and contractors shouldn’t feel like all hope is lost if weatherproofing issues are discovered later in a project. While earlier involvement offers many advantages, the most important step is to involve specialists as soon as a potential risk is identified.

Matt continues: “We’ve had many projects where we were invited to site late in the project. Often, in those cases, water damage had already started, and layers of the structure or external fittings had to be removed so we could access the penetration. That adds cost and causes delays. While those issues could have been avoided with earlier involvement, we were still able to assess the situation and carry out the liquid weatherproofing before further damage occurred.”

When weatherproofing expertise is brought in early, it becomes part of the overall construction strategy rather than a problem-solving exercise near the end of the build. This supports the building’s long-term performance and reduces avoidable disruption.

Bespoke vs traditional approaches to penetration weatherproofing

Many penetration weatherproofing methods fall under the “traditional’ heading. These include metal flashings, banding and caulking, mortar, mastic sealants and ‘dog-kennel’ style enclosures.

Traditional weatherproofing is typically applied reactively, and they often rely on standard products to address each penetration on an individual level. They may not accommodate the large or complex penetrations that are common in mission-critical facilities, and they may not perform reliably where there is building movement or thermal fluctuations. Regular inspections are essential to identify failures early, while maintenance and repairs are often required.

In contrast, Jones Weatherproofing’s bespoke liquid weatherproofing uses a liquid-applied solution that is applied directly to and around building penetrations. It is cold-applied, UV-stable and solvent-free, making it compatible with most roofing materials, including GRP.

Because it is applied as a liquid, our liquid weatherproofing can be used around complex details and irregular openings, forming a continuous and fully bonded layer once cured, meaning that minimal maintenance is required.

Instead of forcing standard details to fit in traditional weatherproofing materials, bespoke liquid weatherproofing is designed to suit the building and its specific requirements. Penetrations can be effectively integrated into the overall building strategy, and changes to layouts and services can be accommodated more easily – both during construction and throughout the building’s lifespan.

Comparing bespoke liquid weatherproofing and traditional approaches

Bespoke liquid weatherproofing

  • Liquid-applied resin that is cold-applied, UV-stable and solvent-free
  • Can work around complex shapes and irregular openings
  • Treats penetrations as part of the whole building system
  • Can be proactively coordinated from early design to avoid problems
  • Designed for long-term performance with minimal maintenance

Traditional approach

  • Includes metal flashings, banding and caulking, mortar, mastic sealants or ‘dog-kennel’ style enclosures
  • Relies on standard details and generic products
  • Often addresses each penetration individually
  • Typically applied late in a build as a reaction to an identified problem
  • Requires regular inspections and may require ongoing repairs and maintenance

How liquid weatherproofing helps prepare for the changing climate

In the UK and around the world, we are already experiencing the effects of climate change. In July 2025, the Met Office warned that weather records and extremes are now the norm for the UK climate. The State of the UK Climate report highlights how the UK’s climate has warmed steadily from the 1980s onwards, and how heavy rainfall has also increased.

For buildings, heavy rainfall, extreme weather events and wider temperature fluctuations all place greater strain on the envelope, particularly around penetrations, joints and interfaces.

Mission-critical buildings are especially vulnerable to these conditions due to their complexity and large number of building penetrations. Increased rainfall and heavy winds increase the risk of water being driven into the building fabric. Meanwhile, temperature changes can cause building materials to expand and contract, putting stress on seals and increasing the risk of water ingress.

Liquid weatherproofing can help prepare mission-critical buildings for climate extremes, creating a barrier against moisture that is resilient to temperature fluctuations and movement. This contributes to the operational continuity of the building and its operations.

Establishing an effective liquid weatherproofing strategy

An effective liquid weatherproofing strategy combines specialist knowledge, on-site coordination and careful installation. To ensure best results, architects, specifiers and main contractors should consider penetration weatherproofing as early as possible, proactively treating weatherproofing as part of the building design rather than a reaction to a problem.

Jones Weatherproofing works closely with project teams to provide effective liquid weatherproofing for building penetrations. From early-stage surveys and design guidance through to professional installation and excellent customer support, we tailor our weatherproofing to the specific requirements of mission-critical buildings. All work is covered by our 25-year warranty.

To learn more about how Jones Weatherproofing can support penetration weatherproofing on a current or upcoming project, please get in touch with the team to start the conversation early.

Common service riser FAQs

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by Matthew Jones

Matthew Jones

Commercial Director

Service risers are a common feature in modern buildings, carrying electrical, mechanical and communications services from one level to another, or through the roof.

Jones Weatherproofing offers a liquid-applied system for weatherproofing service risers and other types of building penetrations. It is suitable for all kinds of roof build-up and allows services to run vertically without compromising watertightness. It also simplifies access and can be easily adapted as service requirements or layouts change.

Below are the answers to frequently asked questions about our service riser weatherproofing.

Are there any types of penetrations that can’t be used with riser systems?

Question: Are there any types of penetrations that can’t be used with riser systems?
Answer: No. The Jones Weatherproofing system provides effective weatherproofing for all standard service riser penetrations. It can be used to weatherproof around cable trays, HVAC ductwork, exhaust vents, water pipes, gas pipes, electrical supplies and mechanical services. It also offers complete design flexibility and can be adjusted to suit any roof layout.

Can different services be run through the same building penetration?

Question: Can different service types be run through the same penetration?
Answer: Yes. With the Jones Weatherproofing system, different service types can be run through the same penetration. For example, electrical and mechanical services can run together, as long as the requirements for separation, fire stopping, thermal performance, safety and other compliance considerations are met.

Are service risers more prone to water ingress due to ponding or other flat-roof phenomena?

Question: Are service risers more prone to water ingress due to ponding or other flat-roof phenomena?
Answer: No. When correctly detailed, service risers should not be prone to water ingress due to ponding or any other flat-roof phenomena.

The Jones Weatherproofing system provides effective rainwater management for flat and pitched roofs. Where appropriate, falls can be incorporated into the build-up, helping rainwater drain away from the penetration more quickly. The liquid-applied system also creates a continuous layer with no seams or joints where water could collect or penetrate.

Complex service riser weatherproofed in London
installed weatherproof system which connects to service riser

 

How does the Jones Weatherproofing system work?

Question: How does the Jones Weatherproofing system work?
Answer: Jones Weatherproofing uses a cold-applied liquid to create a durable, continuous and weather-tight seal around service risers.
In contrast to dog-kennel-style weatherproofing, which uses rigid enclosures around the roof penetration, the Jones Weatherproofing method allows services to run vertically. It also uses less roof space, simplifies maintenance access, can more easily adapt to changes in roof layout or service requirements and can be colour matched to specific project requirements.

When should weatherproofing service risers be considered during a project?

Question: When should weatherproofing service risers be considered during a project?
Answer: As early as possible. For best results, the weatherproofing of service risers and other building penetrations should be planned from the early design stages.

In many cases, weatherproofing isn’t considered until a project is nearing completion. However, this can lead to poor detailing and an increased risk of water ingress.

Leaving weatherproofing to the end of a project can also make access more difficult. Penetrations may be under other building elements or otherwise inaccessible and some elements may need to be removed to gain access, causing delays and additional costs.
Early planning can help determine the best layout for service riser openings; ensure service risers are accessible when the weatherproofing team arrives, reduce on-site disruption and limit the risk of water ingress.

Where can I find out more about service riser weatherproofing?

For more information about service riser weatherproofing, including specification advice and installation considerations, contact the Jones Weatherproofing team. We can answer technical queries, advise on project programming and arrange site visits to determine the best weatherproofing strategy for your project.

Dispelling myths about service riser weatherproofing

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by Matthew Jones

Matthew Jones

Commercial Director

As the mechanical and electrical loads of buildings have increased – particularly in data centres – the specification and installation of service riser penetrations has become even more complex.

While many advancements have been made in building design with regards weatherproofing, moisture management and safety, several myths persist about weatherproofing best practices and methods for achieving a weathertight finish around service riser penetrations. For example, there’s the ongoing reliance on “dog-kennel” or “dogbox” style enclosures and the belief that they are the only weatherproofing option for service risers.

Jones Weatherproofing has extensive experience in designing and installing modern weatherproofing systems that offer benefits over traditional dog-kennel detailing – such as reduced space requirements, a more straightforward installation and increased design flexibility. In this blog, we’re going to address some of the outdated assumptions and myths about weatherproofing service risers.

Myth 1: Services must come through horizontally, so dog boxes are the only reliable option

For many years, a common approach to weatherproofing service risers was to place a dog-kennel-style enclosure around the roof penetration, then have the services make a 90-degree bend and exit horizontally through the side.

While this method can create a reliable seal, it also has drawbacks. For example, services don’t just go in a straight line and may need to bend around other fixings, the enclosures can take up a lot of space, and the clustered layout of cabling, pipework and conduits can make future access and maintenance more difficult.

Modern weatherproofing techniques and materials mean that dog kennels and horizontal services are no longer the only option.
With the Jones Weatherproofing system, service risers can be effectively weatherproofed in vertical or horizontal configurations. This simplifies detailing, streamlines installation sequencing and saves space on the roof. It also offers a more flexible approach and can more easily accommodate last-minute changes on site.

Myth 2: Dog boxes are “best practice” for weatherproofing service risers

Dog kennel enclosures are robust, familiar and have been used for decades. It’s understandable that they are often considered best practice by default.

However, there is no single best practice approach, and familiarity should not be the reason for specification.

Dog boxes take up a large amount of roof space, which can affect the layout and maintenance access. Being fixed structures, they also don’t offer flexibility if services need to change, move or be increased on site.

Jamie Sporcic, senior sales manager at Jones Weatherproofing, explains that specifying a dog-kennel type system isn’t wrong, but it’s important to remember that there are other options. “For example, the weatherproofing methods offered by Jones Weatherproofing can achieve the same level of weather-tightness while also offering adaptability and reduced space requirements,” he says.

“Our system uses a cold-applied liquid solution that is compatible with any cladding or roof type, including GRP. It creates a joint-free weatherproof layer, saves space, adapts easily to layout changes or variations in service quantity and is backed by a 25-year warranty,” he adds.

Complex service riser weatherproofed in London

 

Myth 3: A large weatherproofing enclosure provides better protection

Dog-kennel-style enclosures are typically provided in standard sizes, which can lead to over specification. The thinking is that a too-big box is better than a too-small one, as it leaves space for additional services or future layout changes.

The problem is that large enclosures take up valuable roof space. They can increase wind load, restrict access routes and make future maintenance more complicated. Economically oversized specifications can also be money wasted if the box isn’t utilised to its maximum.

The Jones Weatherproofing method achieves effective weatherproofing without requiring bulky housings. Jamie explains that because the weatherproofing is applied directly around the services, they can be more evenly spaced, rather than bunched together. “This saves space, improves maintenance accessibility and makes it easier to add or adjust services during construction or later in the building’s life,” he says.

Myth 4: Weatherproofing service risers is something to think about at the end of a project

Service riser penetrations are a common failure point in roof systems. Late-stage planning and poor detailing are common culprits that can lead to water ingress, complicated maintenance and invalidated warranties.

Leaving weatherproofing decisions until the end of the programme often results in defaulting to dog-kennel enclosures, simply because they are familiar. In the late stages of a project, there may not be time to consider alternatives – and potentially more effective – options, such as the weatherproofing methods provided by Jones Weatherproofing.

Another problem with leaving the weatherproofing of service risers to the end of a project is access.

Weatherproofing is often treated like finishing work, and teams sometimes assume that it can be addressed after the services are installed – but this can lead to difficulties.

“If you wait until the end of a project to think about weatherproofing, it may become more challenging to access the penetration – particularly if other building elements have been layered above it. There may also be difficulty in accessing the penetration because other trades are also working in the same space,” Jamie warns.

He recommends planning the weatherproofing strategy as early as possible, as this can help to:

  • Determine the size and layout of service riser openings, avoiding the need to re-work them later.
  • Ensure that the penetrations are accessible when the weatherproofing team arrives.
  • Reduce disruption caused by removing or rerouting existing installations.
  • Avoid last-minute delays near the end of the project when the site is busy and schedules are tight.
  • Prevent late-stage delays when space and time are limited
  • Maintain a consistent standard of weatherproofing detailing and quality.
  • Allow time to consider various weatherproofing methods, including Jones Weatherproofing’s cold-applied liquid weatherproofing.

Vertical service penetrations from Jones Weatherproofing

Dog-kennel detailing has its place, and the team at Jones weatherproofing has extensive experience in installing and weatherproofing these types of products, but it’s not the only option for weatherproofing service risers or necessarily the most effective. The Jones Weatherproofing method accommodates vertical service risers with ease, offering on-site flexibility, saving space and providing dependable performance – all at a comparable cost.

Get in touch to find out how we can support the specification of weatherproofing for any upcoming projects.

Why is commercial roof maintenance so important?

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by Matthew Jones

Matthew Jones

Commercial Director

The roof of a commercial building plays a critical role in protecting a building’s structure and its contents, as well as safeguarding the wellbeing of occupants. Commercial roof maintenance helps to ensure the long-term integrity and functionality of the roof, reducing the risk of leaks, water damage and structural deterioration. Maintenance can also prolong the lifespan of the structure, minimise repair costs and support business continuity.

So what is involved in a commercial roof maintenance regime and how can you take steps to ensure a commercial roof is being adequately maintained? Let’s take an in-depth look at what is required, what can be expected and how a maintenance plan can extend the life of a commercial roof.

What is the life expectancy of a commercial roof?

Depending on factors such as the roof build-up, the quality of installation and the local climate conditions, the life expectancy of a commercial roof can range from 10 to 60 years. With regular inspections, suitable maintenance and timely roof repairs, the expected lifespan of a commercial roof can be extended significantly.

What types of roof maintenance are typically required?

The maintenance needed for a commercial roof will depend on the type of roof in question, but all roofs will require regular cleaning to remove debris, dirt and organic growth from the roof surface and drainage channels. Inspections should also be carried out at least twice a year to check for signs of damage or deterioration.

A commercial roof maintenance plan should also include:

  • Checking the roof covering for cracks, bumps or loose edges.
  • Inspecting seals, flashings, upstands and curbs around roof penetrations such as chimneys, vents, access hatches and rooflights.
  • Inspecting rooftop equipment such as solar panels and HVAC plant to ensure they are in good working order, well supported and secured in place.
  • Checking the condition of guardrails, anchor points, walkways and other safety features.

Problems found during routine inspections can often be dealt with quickly and easily before they become bigger issues. For example, Jones Weatherproofing’s cold-applied liquid waterproofing can enhance the durability and weather resistance of a commercial roof with minimal disruption.

It’s important to keep detailed records of all maintenance that is carried out, as well as findings from inspections. This will help to keep track of the roof’s condition and requirements and provide a useful source of information.

roof penetration being weatherproofed on a modular building

What are the implications of not carrying out commercial roof maintenance?

Proactive commercial roof maintenance is essential for preserving the integrity and weather resistance of the roof, and the entire structure. Filing to maintain and regularly inspect a commercial roof can result in structural and financial consequences as well as safety hazards and potential legal repercussions.

Neglected roofs are prone to leaks, and water ingress can damage the building structure, interior and contents. Leaks can also quickly worsen over time, so it’s important to catch leaks early and repair them quickly. Common problems that are caused by inadequate roof maintenance include:

  • Structural damage – Water infiltration can compromise a building’s structural integrity, including the roof structure, walls and even the foundations. This can lead to safety hazards or potentially catastrophic failure of the building.
  • Damp, mould and mildew – If water permeates the building, it can lead to the growth of mould and mildew, which can damage building materials and cause health risks to occupants.
  • Safety hazards – Leaking roofs can lead to wet, slippery floors, or allow water to get into machinery, which could endanger operators. If the rooftop is used for access, damage to the roof surface can also create trip hazards or other safety risks.
  • Damage to building contents – From factories and warehouses to offices, shops and restaurants, commercial buildings are full of contents that are necessary for business continuity and expensive to replace.
  • Decreased energy efficiency – Cracks, gaps and other commercial roof damage cause draughts and cold bridges, leading to heat loss in the winter or heat gain in summer. HVAC systems will then need to work harder to maintain indoor temperatures, thereby increasing energy consumption and running costs.

The damage caused by inadequate commercial roof maintenance can reduce the property value, as potential tenants or buyers may be deterred from investing in a property that may require extensive repairs.

Neglecting commercial roof maintenance may also lead to other financial or legal implications. For example, the roof systems warranties could become void, meaning the building owner would have to pay the full cost for any necessary repairs or replacements. Safety violations caused by insufficient roof maintenance could lead to legal repercussions, and insurance claims may be denied if roof-related damage is found to have occurred due to poor maintenance.

If you’re not sure what roof maintenance and repairs are required, an expert site survey can help you better understand the current state of your commercial roof.

Extend the life of your commercial roof: maintenance services from Jones Weatherproofing

Regular maintenance is key for ensuring the structure has a long lifespan and performs as expected. This includes roof inspections, cleaning and repairs where needed.

As approved installers of cold-applied liquid waterproofing, Jones Weatherproofing has extensive experience in commercial roof maintenance. Our specially developed cold applied repair solution for GRP roofing systems can be used to repair all types of flat or pitched roofs, and we offer comprehensive maintenance plans to help protect and extend the life of your roof.

To discuss creating a commercial roof maintenance plan for your building please get in touch.