"single ply roofing"

ProjectSurespan designed and manufactured a series of roof access hatch for the New Data Centre in Singapore.The data centre was budgeted at $30 million SGD and covers an area of 269,000 sq ft. The roof hatches were used as key access locations for maintenance and repair of the 8 cooling towers installed at roof level supplying up to 1000 watts of cooling per sq m.ProductsThe series of roof hatches featured a 900 x 900 opening and in the interest of security, the hatches were supplied with an internal cablock which can only be opened from the inside and safety hold open stay to prevent accidental closure.

Green roofing forms a key part of roof design as part of a model for sustainable living in 21st century London. Barking Riverside is a joint venture project between Bellway Homes and the Homes & Community Agency. It is an element of the Mayor of London’s plan to build 10,800 new homes, retail, transport links and new town facilities in the Barking region of East London.

This asbestos cement roof in Birmingham was soiled and in need of remediation.Nadco Roofing Services ensured that the roof was cleaned with all waste water being filtered to 2 microns prior to the application of Liquasil's BBA Approved Asbestoseal 20 asbestos roof coating system.The full system involved priming the metal fixings with our SWT Primer, before sealing the fixings and any cracks in the roof using our Non-Sag Sealer.Once dry, the roof can then be seamlessly coated using Asbestoseal which comes with a 20-year product guarantee and leaves an old asbestos cement roof looking revitalised and brand new.

This case study highlights the successful implementation of Britmet’s flat-to-pitch conversion system, BritFrame, and lightweight metal roof tile, Slate 2000. The project, carried out by Jennings Roofing encompassed a total area of 500 square meters and aimed to improve the infrastructure of the existing roof. This case study examines the benefits, challenges, and outcomes of utilising Slate 2000. This case study highlights the successful implementation of Britmet's Slate 2000 roofing system and Britframe structural solution in a social housing project. The client, a new customer of Britmet, discovered the systems at the UK Construction Week (UKCW) exhibition. Impressed by the innovative design and features, the client expressed interest in utilising Britframe for a flat-to-pitch conversion project in their social housing development. The client is a housing association responsible for managing and maintaining a portfolio of social housing properties. They were seeking an effective solution to address various issues with one of their buildings, including an ageing roof with multiple repairs, inadequate insulation, and inefficient rainwater management. The objective was to enhance the building's aesthetics, improve water tightness, increase energy efficiency, and minimize future maintenance requirements. The initial meeting between the client and Britmet took place at the UKCW exhibition, where the client became acquainted with Britframe, a lightweight and versatile structural solution. Intrigued by its potential, the client arranged for an on-site visit to further assess the feasibility of utilising the Britframe and Slate 2000 roofing system for their project.Slate 2000 is a durable and aesthetically pleasing lightweight roofing material that offers long-term performance and weather resistance. It's stylish design and robust properties make it an ideal choice for enhancing the visual appeal and durability of roofs and cladding. During the initial site visit, Britmet's team evaluated the existing roof condition, rainwater management system, and insulation levels. After careful assessment, they provided the client with a budget price estimate for the proposed project. The estimate included the cost of materials, labour, and necessary ancillary items. To streamline the project, the client signed a Project Assist agreement with Britmet. This allowed Britmet to obtain planning drawings and submit the necessary applications on behalf of the client. Additionally, Britmet provided structural calculations, design drawings, and rainwater calculations to ensure compliance with regulatory standards and best practices. The main objective of the project was to convert the existing flat roof to a pitched roof using Britframe and install Britmet's Slate 2000 roofing system. This conversion offered numerous advantages, including improved water tightness, increased insulation, and resolved rainwater management issues. Notably, the internal gutters, which had caused maintenance problems, were relocated externally as part of the new design.Beyond functionality, the new roofing system and structural solution significantly enhanced the building's aesthetic appeal. The modern design of Britframe, combined with the stylish appearance of Slate 2000, seamlessly integrated the property with its surroundings. The improved visual aesthetics added value to the social housing development. One of the key benefits of choosing Britmet's Slate 2000 and Britframe was the assurance of minimal maintenance requirements. Unlike the previous roof covering, which had undergone numerous repairs and reached the end of its life, the new system was designed to be durable and long-lasting. This eliminated the need for ongoing maintenance and reduced future costs for the housing association.Through the adoption of Britmet's Slate 2000 roofing system and Britframe structural solution, the social housing project achieved its objectives of enhanced aesthetics, improved water tightness, increased insulation, and efficient rainwater management. The collaboration between the client and Britmet, from the initial meeting at UKCW to the successful implementation of the project, demonstrated the value of innovative roofing and structural solutions in the social housing sector.

The Protec System was used to waterproof the domed green roof areas of this striking, sustainable house development which was featured on Chanel 4’s Grand Designs. With an ambitious vision and a tight budget, Robert and Milla Gaukroger set about transforming a dated 1980’s house overlooking Lake Windermere into a state-of-the-art, eco-conscious home. Since the house lay in beautiful hillside surroundings, in order to blend into this setting, the domed roofs of the house were to be covered with a wildflower meadow mix to provide a green roof construction.The SolutionThe Protec System was chosen as a waterproofing membrane for the roofs as it is ideally suited for green roof applications. Lightweight, flexible and highly durable, the system can easily accommodate structural expansion movements and is tough enough to resist root penetration. The Protec system was applied to over 350m2 of domed roof to provide a long-lasting waterproofing membrane.The key reasons why Eastleigh chose Protec are the same reasons that has seen it become one of the fastest growing cold-applied liquid roofing systems in both the new build and refurbishment markets. Combined with the timber cladding to the verticals of the building, the finished aesthetics of the development blended seamlessly with the surrounding areas.A warm roof build-up that can be made waterproof at multiple stages:For larger projects the Protec system can be made temporarily waterproof at two stages prior to the application of the full waterproofing system. The first stage is upon installation of the sealed, aluminium-faced vapour barrier.The second phase follows the reinforcing of the foil-faced insulation board joints with Protec resin and taping mat. This enables a much more controlled approach to the installation with a greatly reduced chance of rain causing disruption and damage during the works.Highly flexible membrane:Regardless of the size of the roof, Protec forms a homegenous membrane, without a single joint or seam and without the need for any expansion joints.RapidCure technology for quick installation:The application of Protec as a liquid, through to the curing process where a solid, tough membrane that can be walked over, takes only 30 – 60 minutes. This enables large sections of the roof to be fully completed in a short space of time.Installing the Roofing SystemsThe Protec System provided waterproofing to all flat roof areas as well as the extensive parapet wall sections. The roof areas were made up of two designs: the Protec Warm Roof System (approx 7,500m2) and Protec applied to concrete as part of an inverted roof design (approx 1,000m2).The roof installation was carried out with a planned, phased approach that was synchronised to the wider construction schedule. For the warm roof areas, the first stage was to fill the troughs of the structural metal roof deck with acoustic insulation infills that will dampen external noise within the leisure centre. Next, the crowns of the deck were primed ready to receive the self-adhesive vapour barrier.The use of a high-performance aluminium vapour barrier not only eliminates the risk of condensation within the roof, but also provides temporary waterproofing protection, which is extremely useful on larger works such as this.The Polyroof RES Insulation boards, which comprised of a two layer system totalling 170mm to achieve a U-Value of 0.14 W/m2K, were bonded using high-performance PU adhesive to the vapour barrier. Following the wind uplift calculations it was determined that mechanical fixings were not required for this application – making for an extremely rapid installation. As you can probably imagine, fixing through 170mm of insulation into the crowns of the metal deck can be a tricky and time-consuming task.A key advantage of using a tongue and groove insulation system is that the finished surface of the roof is smooth and level without any unsightly board steps that can also lead to standing water issues. The insulation board joints were sealed using Protec resin with Polymat Taping Mat 450 which, in addition to providing additional strength to the joints, also creates a temporarily waterproof layer.For the inverted roof sections, Protec was applied directly to the primed concrete/screed surface. The membrane was inspected by Polyroof Technical Services, signed off and then covered with inverted roof components. An interesting fact when using Protec in inverted roof situations is its incredible durability performance – as tested by the BBA, Protec “can provide an effective barrier to the transmission of liquid water and water vapour for the design life of the roof in which it is incorporated”.Monitoring and CompletionThroughout the duration of the contract, Polyroof Technical Services carried out regular site visits that were reported back to Interserve as part of Polyroof’s free-of-charge contract monitoring service. This enabled the client to keep up-to-date with the progress of the roof installation in detail and also provided peace of mind that the original specification was being closely followed and implemented.Polyroof worked closely with the Roofline Group during the installation, enabling the challenges were identified and solved in an efficient and coordinated manner – saving the client time and money.

Bilco UK's CS-50TB Roof Access Hatch provides the perfect solution for roof-top access at Blair Castle, Scotland. The Category A listed building is said to have been constructed in 1269 and has been extensively added to over the years. Maintaining such a historic monument is a massive task. The Atholl Estate employ an army of staff to ensure this iconic property is preserved for future generations. One of the many problems in looking after such a building is the fact that it was not designed with ease of access to the roof in mind.

Liquasil Ultra PU is a BBA approved flat roof waterproofing membrane. Cold-applied, the system comprises an embedment coat, into which a chopped strand reinforcement mat is laid to provide exceptional strength. The mat dissolves and allows for hand-moulding around difficult details. Once cured, the Liquasil PU UV coat is applied to provide additional strength, durability & protection. The completed system comes with the unique Latent Defects Insurance Guarantee, which provides cover for Professional Design. Specify with 100% confidence. Made in the UK.

This project had incredibly restricted access, where the client wanted a green roof on an existing bitumen rooftop overlooked by hotel rooms. The M-Trays® had to be transported on a trolley through the hotel kitchens. They were winched onto the roof itself using a genie lift and slotted into position in a matter of hours. Trying to construct a roll-out green roof was impossible, given the restricted access. Installation was fast and effective, taking only a day and giving an instant green roof. M-Tray® dramatically improved the view from the rooms and improved the guests’ experience.

Museum of London - Visionary RoofSynopsisThe Museum of London opened in 1976 on the historic London Wall and is a few minutes’ walk from St Paul’s Cathedral. A visionary approach to roofing had been adopted on a building that, will not only green as much of the exposed roofs as possible, but also provide a strong research aspect for future green roof projects. As with many buildings, the original roofs needed to be upgraded or replaced, at the same time as being brought up to date using environmental and sustainable solutions.Through the recommendation of waterproofing and green roof manufacturer Bauder Ltd, the Museum invited Dusty Gedge, one of the UK’s leading independent green roof consultants, to work directly with them to design 3500m² of varying habitats that encompassed the museum’s sustainable vision. and help in the provision of environments that would attract a range of wildlife, as well as being able to help the city adapt to climate change.Bauder Building BoardProject:Visionary roof, Muesum of LondonLocation:LondonProject type:RefurbishmentRoof size:9512m²Specifier:Museum of LondonRoofing contractor:Russell Trew LtdThe specificationAn independent consultant had previously carried out an energy model on the Museum of London buildings. When the museum inputted the green roof specification, it showed a potential energy saving of 10% per year, as well as a reduction on the future replacement costs of the heating and cooling plant. Some of the green roofs were funded through Drain London, a partnership project led by the Greater London Authority and funded by Defra. The project aims to better understand surface water flood risk across London, with a view to promote interventions (such as green roofs) to reduce surface water flooding. The museum has used the Bauder green roof system and worked closely with Dan Costen of Bauder and the roofing contractor Russell Trew Ltd, to deliver the various green roof spaces.These include:The refurbishment of the lower garden in the central courtyard with hard landscapingThe installation of Bauder’s new wildflower blanket to the upper garden in the central courtyard (funded through Drain London)Plug planting the roofs of the recently completed garden and terrace rooms that provide high quality corporate hire (matching the colour scheme chosen for the rotunda garden refurbishment and integrated with the new rainwater harvesting system funded by Renaissance London)An integrated sustainable urban drainage system (SuDS)Plug planting in other individual small roof areas including outside the boardroom and committee roomsTwo different planting schemes on an area of the main museum roof where the Drain London Project aims to carry out water attenuation researchThe resultRetrofitting green roofs will help to realise the Mayor of London’s ambition, to increase green cover in central London by 5% by 2030. The Museum of London is one of the largest retrofit green roof projects in the City and is certainly to be commended for allowing its roofs to be used for research purposes. Not only will it provide a benchmark for best practice, but it also demonstrates that retrofitting green roofs onto existing buildings is both environmentally and economically viable and is the way forward in helping London adapt to climate change.System installedBauderflex Green 1 BauderPLANT E 42A torch applied SBS elastomeric bitumen capping sheet. This product features chemically treated bitumen to deliver superior root resistance which has been tested and approved by the FLL2 BauderTEC Sprint DUOA self-adhesive elastomeric bitumen underlayer with DUO lap technology. This product has a glass fleece reinforcement feature for stability and strength.3 BauderPIR FA-TEFlatboard insulation boards containing rigid polyisocyanurate (PIR).4 BauderTEC KSD FBSA self-adhesive SBS elastomeric bitumen air & vapour control layer, with a mica finish.XF 301 Sedum System1 BauderGREEN XF 301Sedum vegetation blanket instantly providing at least 90% coverage on an extensive green roof. Integrated water retention and filter layer.2 BauderGREEN AL 4040mm high perforated edge/drainage trim frames and retains the Bauder XF 301 sedum system.3 BauderGREEN SDFMulti-functional drainage and filtration layer which prevents the roots of sedum plants from becoming waterlogged.4 BauderPLANT ETorch-on root-resistant capping sheet green.AdvocacyGavin McCourt MRICS, Project Manager for The Museum of London said:“In producing the business case for installing green roofs, reference was made to the extensive published documents on the benefits of green roofs. In this case as the museum building had already been energy modelled by outside consultants, it was decided to input the green roof specification into the model. The results showed a potential energy saving of 10% per year, as well as a reduction in future replacement costs for heating and cooling plant. These factors, combined with the longer life cycle replacement of green roofs compared with normal felt roofing systems, enabled me to produce a robust business case for green roofs. With increasing energy prices the economic benefits of installing green roofs can only become more viable”Dusty Gedge added:“One of the major issues that London faces is flash floods during the summer, when sudden rainfall levels overwhelm the current drainage network. With the support of Drain London we will be researching the rainwater run-off for different green roofs. This will help us validate the kind of roofs and depth of substrates that will negate the costly effects that the sudden rainfall has on the infrastructure of the City.”

Russell Roof Tiles worked closely with the roofing contractor to supply tiles for a rural exemption scheme.

Russell Roof Tiles su.pplied 200,000 Highland roof tiles in Cottage Red for a reroof project

London GRP Roofing Ltd, specialists in fibreglass flat roofs and terraces, recently completed a Degaflex roofing installation using our high-performance system and gave their professional opinion.Stephen Knuckey, the Director of London GRP Roofing Ltd. posted on LinkedIn photos of their project along with a comment of ‘our "Degaflex overlay. Safe to say I am extremely pleased with the finish on this. Being a felt overlay and turning out this smooth, I’ll be looking forward to applying it directly to an OSB deck.’

The Royal Blackburn Hospital, located in Lancashire, England, was dubbed a “ticking time bomb” that could “collapse without warning” due to the failure of its existing reinforced autoclaved aerated concrete (RAAC) roof. This issue was part of a larger nationwide crisis, with 34 NHS buildings, including Blackpool Hospital, and thousands more schools, offices and more at risk of collapse due to the deterioration of RAAC structures. The estimated cost of repairs for these buildings loomed at over £1 billion. In the face of this urgent and challenging situation, The Royal Blackburn Hospital sought a solution to ensure the safety and integrity of its infrastructure.The Royal Blackburn Hospital's existing RAAC roof had reached a critical state of disrepair. The risk of a catastrophic collapse was real and imminent, posing a serious threat to patients, staff, and the hospital's ability to provide essential medical services. The financial burden of repairing or replacing such a roof was substantial, and the hospital needed an innovative, cost-effective, and expedient solution.The hospital administration and engineering team explored various alternatives to address the RAAC roof crisis. After careful evaluation, they opted for Britmet's Tactray 90 Structural Liner System as the best solution to mitigate the risk of a roof collapse. Tactray 90 offered the necessary structural reinforcement while ensuring long-term durability and stability. The installation could be completed with minimal disruption to hospital operations, a critical consideration given the hospital's 24/7 operation.Project Outcomes:Implementing Britmet's Tactray 90 Structural Liner System at The Royal Blackburn Hospital resulted in several significant benefits. The hospital's roof regained its structural integrity, mitigating the risk of collapse. The hospital saved a substantial amount by opting for the Tactray 90 system as it provided a weatherproof roof covering to minimise the impact of construction so that the hospital could resume full medical services quickly, ensuring continuity of patient care. Conclusion: The Royal Blackburn Hospital's adoption of Britmet's Tactray 90 Structural Liner System offered an innovative solution to a critical structural problem caused by the failure of the existing RAAC roof. This case study demonstrates that even in challenging situations involving aged infrastructure, cost-effective and efficient alternatives exist to safeguard structural integrity, ensure safety, and enable the continued provision of vital healthcare services. The success of this project serves as a model for other NHS facilities grappling with similar RAAC-related challenges, providing hope for the resolution of the wider national crisis.

Another example of the BBA Approved asbestos roof coating system, Asbestsoeal from Liquasil Ltd. The asbestos cement roof was first cleaned using a closed box pressure washer. All waste was filtered and disposed of by a licensed asbestos disposal contractor. Metal fixings were treated with Liquasil SWT Corrosion Primer and then sealed, along with small cracks and holes, with Non-Sag Sealer before the roof was coated with Asbestoseal 20. The project included GRP rooflight replacement and new ridge detail and flashings.

This asbestos cement roof in Norwich was soiled with moss and lichen covering the surface and had leaks in several places. Liquasil's BBA Approved Asbestoseal 20 asbestos roof coating was specified to extend the life of the roof and provide an aesthetically pleasing finish. The Contractor, ID Asbestos Ltd, carried out the works safely and efficiently.After being steam cleaned, the metal fixings were treated with our SWT Corrosion Primer and all fixings and cracks were sealer with Non-Sag Sealer. The whole roof was then coated with Asbestoseal 20 to provide a sleek new finish to the old asbestos sheets.Liquasil's Latent Defects Insurance Guarantee was provided upon completion.