"roofing membranes"

Surespan manufactured a double-glazed sliding access hatch for use in a private residential apartment in London. Product2640 (103?) x 2020mm (79?) hatch was electrically operated via a key switch for easy operation and allowed access to the roof providing views across the London skyline. The sliding cover was finished in grey external polyester powder coating with a white internal finish. The 35.5mm sealed double glazed unit comprised of Pilkington 6mm toughened K polished all-round outer pane, 20mm Warm Edge silver spacer Bar argon filled, Pilkington 9.5mm toughened & laminated inner pane, divided into two panes.

CUPA 9 slates have been specified as part of a modern luxury housing development in Yorkshire. The company’s natural Spanish slates were chosen on account of their aesthetic value, long-term durability and competitive pricing.  Set amongst the foothills of the Yorkshire Wolds and with panoramic views of the Humber Estuary, ‘The View’ in Swanland is a luxury 14 house development, which has been led by main developer, Church Gate Homes. The high-end collection of properties has been delivered using premium building solutions, including CUPA PIZARRAS H9, with each property featuring around 10,000 individual slates. Excelling in terms of aesthetics and long-lasting performance, natural roofing slates are capable of enduring extreme temperatures, are fire-resistant and unaffected by UV light. Incredibly durable, solutions manufactured from slate can offer a lifecycle of over 100 years. Additionally, the natural make up of the material ensures that it is also the most sustainable roofing option on the market. Specifically, CUPA 9 is a grey slate with a very smooth surface and is taken from one of CUPA PIZARRAS’ own quarries in Riofrío de Aliste in Northern Spain. With its traditional beauty, the natural slate is ideal for use across heritage projects. However, the stylish aesthetic of the material also lends itself equally well to modern developments, such as ‘The View’ where it can be used to create sleek roof designs. Speaking on the project, Calum Cowham, Marketing Manager at Burton Roofing Merchants Ltd commented: “The project team needed a roofing solution that both looked and performed perfectly. With the CUPA 9 slates that’s exactly what they got. What’s more, the company’s natural slate product range is available at a highly competitive price point, which owes a lot to CUPA PIZARRAS’ efficient and effective production methods.” Martin Sutton, Operations Manager at Church Gate Homes commented: “When working on high-value properties, it is important to offer customers products, which combine durability and aesthetic value. This is exactly what CUPA PIZARRAS slates allowed us to do at ‘The View’. The company’s natural products perfectly suited the prestigious nature of the site.” As well as offering quality slate solutions, the CUPA PIZARRAS specialists were also on hand to assist the installation team at Church Gate Homes with specific advice on how to fit the slates in line with all relevant standards and requirements. Similarly, the installation team benefitted from the onsite support of leading roofing merchant, Burton Roofing Merchants Ltd. Burton Roofing’s team helped to ensure products were safely delivered to site when required and provided further technical assistance where necessary. “The roofing installation at ‘The View’ was very straightforward and the finished results look great,” commented Martin. “The CUPA PIZARRAS slates have provided a clean and tidy appearance, which fits well across all of the properties. What’s more, we were able to carry out the installation with very little waste, which further bolstered the product’s cost-effective and environmental credentials.” To this end, natural slate solutions also have the added benefit of requiring no chemical or heat treatments that need gas during their production. To ensure even greater environmental performance, CUPA PIZARRAS also endeavours to recycle all of its processing water via a closed circuit, and works to restore exhausted quarries by hydroseeding native plants and ensuring the natural recovery of the local flora and fauna. CUPA PIZARRAS has also been recognised and certified by the Carbon Trust as a carbon neutral company. This recognition highlights the company’s comprehensive effort in sustainability and makes it the first slate production company to achieve carbon neutrality within its operations. All properties at ‘The View’ were sold prior to the commencement of the development. Work at the site continues to progress with the project team working to complete the bespoke designs of its individual customers.  

Hydrostop AH-25 product was chosen to refurbish 450m2 of roof at the Sacred Heart Primary School in the Bridgeton area of Glasgow. Areas of the roof had been leaking, leading to considerable water damage and disruption to some classrooms. The priority for the roof works was to procure a waterproofing system with minimal hot works that would cause as little disruption to the school’s everyday activities as possible.

Fort DunlopBauder Total Green Roof System (BTGRS)SynopsisDuring the recent regeneration in and around Birmingham, innovation has been a key factor; a theme optimised by the redevelopment of the Dunlop Tyres warehouse which has been transformed into 45,000m² of office space and a 6,000m² hotel.Bauder Building BoardProject:Fort DunlopInvestor:Urban SplashLocation:BirminghamArea Size:7,100m2Architect:Shed KMContractor:James M Green Company LimitedThe specificationPractical challenges such as the reduction of noise pollution and maximising the building’s lifespan were all met by the Bauder Total Green Roof System with an extensive landscaping of sedum. The planting scheme provided instant coverage as the sedum was laid as pre-cultivated vegetation mats. Green roofs have excellent acoustic qualities for both external sound (up to 3dB) and internal noise (up to 8dB). This proved essentially in the selection of the Xero Flor blanket due to the proximity of Fort Dunlop to Birmingham Airport. The resultThe entire solution provided a watertight installation in conjunction with a 20-year guarantee whilst making the structure both environmentally friendly and aesthetically pleasing.System installedBauder Total Green Roof System (BTGRS) 1 BauderPLANT EA torch-applied, root resistant capping sheet. The product features chemically treated bitumen to deliver superior root resistance which has been tested and approved by the FLL. The membrane is reinforced with 250g/m² spunbond polyester fleece to allow the finished product to cope with structural movement without fracture.2 BauderTEC KSA DUOA self-adhesive bitumen underlayer with “DUO” lap technology to ensure thorough sealing of lap joints, even in lower temperatures. 3 BauderPIR FA-TEFlatboard insulation used on the lantern roof area to help meet its U-value of 0.15W/m²K. 4 BauderTEC KSD FBSA self-adhesive SBS elastomeric bitumen air & vapour control layer, with a mica finished upper surface to allow easy bonding of insulation using the specified Bauder insulation adhesive.Bauder 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

This project had a wide ranging number of detailing factors to overcome with cladding abutment details and change in levels to be redesigned and encompassed into a system that also drained the roof areas of their historic high levels of standing water. Some of the existing construction build had not taken into account any suitable maintenance of the roof with sections being completely inaccessible and thus reducing the performance of the waterproofing.

Liquasil's BBA Approved Metalseal 20 roof coating and Gutterseal system were specified for use on the Airspace Trampoline Park in Wolverhampton. The whole roof was pressure washed and a historical cut-edge corrosion treatment was removed before application; the cut-edges were treated with our SWT Corrosion Primer, with additional reinforcement to the mid-laps through the installation of Liquasil's optional HP Butyl Tape.The whole roof was then coated with Metalseal 20 in Goosewing Grey at a filmweight of c. 300 microns to provide a protective, aesthetically pleasing finish.The gutters were cleaned out and dried before being primed with our SWT Corrosion Primer. Once touch-dry, the joints could then be sealed using our Non-Sag Sealer and a single coat of Liquasil One was applied to the entire gutter. Liquasil One can be immediately applied over the top of Non-Sag Sealer, meaning no time is wasted waiting for it to cure before the works can continue.The end result was a revitalised metal roof with a protective, water-resistant coating that is guaranteed for 20 years.

The scope of this project was incredibly interesting. The owners sought to create a subterranean space which had the look and feel of a magical ‘Hobbit Home’ as if created by J. R. R. Tolkien himself.

Delta Registered Installers, Bensleys provided a waterproofing solution on an iconic Brighton structure.Steeped in history and thought to be built on the original Brill Baths site, sits Clarendon Mansions. This large, detached structure is thought to have been built in 1870 by Charles Brill during the Brighton boom.The four-storey building facing Brighton’s famous sea front, was originally constructed as a hotel.Numerous refurbishments over subsequent periods of time, saw the structure move from a hotel to a public house, with the basement area being unoccupied for nearly a decade.The basement area boasts large, vaulted areas to the south and west elevation, with the south-side possibly being part of the original Bath structure.Bensleys were instructed by the main contractor, Pilbeam Construction on behalf of Evolution Architects, to help design, specify and install the waterproofing system.There’s no one-size-fits-all when it comes to waterproofing design. With the basement suffering from water penetration, Bensleys worked with the design team at an early stage of the project to ensure the right approach be taken, which included multiple factors such as: customer requirements, standards, robustness, cost, resources, time, skill required, safety and expectations of ground water which all translated into a design solution.

Delta’s Technical Team along with Delta Registered Installers Marsden Damp Services were approached by the main contractor Wilmott Dixon to give assistance on designing a robust waterproofing solution. Working in collaboration with the architects and project team, this team of waterproofing experts were easily able to offer a simplistic and practical approach.The project was split into 2 phases with Phase 1 waterproofing the existing stage and orchestra pit and Phase 2, the seating and ancillary rooms which all required the installation of a Type C waterproofing system to ensure a Grade 3 habitable environment was created.

To fulfil the requirements of BS8102:2022 and BS 8485:2015+A1:2019 a strategy to develop a specification which combines structural waterproofing and ground gas protection were required for this refurbishment project.The project involved creating additional living space to an existing mid terrace Victorian property in W12. The site of the property, whilst not being located on contaminated land was identified as being potentially at risk, it was near what is classed as contaminated land (an old brick yard).To satisfy Building Control requirements gas protection measures were required to meet BS 8485:2015+A1:2019.Site investigations at former brickworks and landfill sites are within expected UK guidelines for contamination. Ground investigations incorporate both soil sampling, ground gas and groundwater monitoring.In accordance with Table 3 of BS 8485:2015+A1:2019 a residential building is classed as a Type A building, creating a “high risk” requirement for ground gas protection. With the structure requiring a Grade 3 habitable environment attention as required to offer a system which meets all requirements.

Delta were employed to assist on this leaking podium deck project. Following a full assessment of The Hub and its underground parking facilities it was identified that rainwater was entering the basement car park through the ceiling deck at multiple points. These points included holes that were formed to allow drainage from the surface, movement joints and investigation holes that had been created through the steel rib and concrete deck. Based on “as built plans” a system was designed post construction that would offer the same quality of structural protection had it been incorporated during the build phase.

The scope of the project was to facilitate a waterproofing solution for a substantial brick built detached property with a large 3 elevation basement situated at the bottom of a steep sloping driveway. The basement when constructed had 1 form of external waterproofing incorporated during the build stage, however the system required a second form of internal waterproofing due to the location of the structure and high-water table, capable of protecting the luxurious basement from unwanted water ingress.The property’s driveway significantly slopes from street level to the front elevation of the property requiring a specialist waterproofing system to protect the structure.Working in conjunction with the homeowner, Timberwise’s CSSW qualified waterproofing surveyors specified a Delta Type C (Drained) Protection waterproofing system to provide the necessary Grade 3 (habitable environment) to enable to homeowner to fully utilise their basement space. For Grade 3 habitable environments, two types of waterproofing may be required.A Waterproofing Designer’s philosophy defines what they wish to accomplish in the design of their waterproofing system and which principles they will use to do so. Identifying a robust and suitable design philosophy is an important aspect when designing a continuous system, as this will not only directly impact in how users install the system but also in future maintenance which will directly impact on the property owner.

Edenside Barn is a real-life demonstration property in the Cumbria Flood Resilient Showcase Project. The idea behind the Flood Resilient Showcase Project was to use products and materials that will try to keep water out of properties prone to flooding. In a flooding event that is less severe, those products (all of which have been tested to a high specification) are expected to reduce water ingress.

This project required a robust and a meticulously detailed specification with Delta Registered Installers, Cemplas being appointed waterproofing contractor to guarantee a watertight basement.

A dated conservatory area is transformed by Breezefree with a retractable glass roof and polycarbonate curtain walling. Nagan Johnson Architects approached Breezefree to refurbish a dated conservatory area as part of the fit-out of the Cuban restaurant group’s second site in London’s Smithfield district. The brief required a modern retractable glass roof, to replace the old lean-to rooflight, and translucent curtain walling, to replace the dilapidated brick walls and windows...

Our Roof Hatches have been installed on top of many buildings around the world. For this project, our Roof Hatches were installed with stunning views of Alexandra Palace.To suit the building's style, these hatches feature an anthracite powder coat finish, not only enhancing their durability but also adding a contemporary and stylish touch to the overall aesthetics.Thanks to the gas struts, opening and closing these hatches is effortless, ensuring convenience and ease of use.

This project in Derbyshire involved treating cut edge corrosion, re-coating the roof and lining the gutters. Products used were * Metalaseal BBA Approved metal roof coating system * SWT Primer (to treat rust in the gutters and cut edges) * Liquasil One and Non-Sag Sealer to line the gutters. The project is covered by the unique Liquasil Latent Defects Guarantee, which is written specifically for Liquasil and underwritten by an A-Rated, Lloyds of London insurer.

FDT harnessed the most modern roofing materials and advanced 21st century technological know-how to help preserve one of Europe’s most remarkable ancient monuments, 5,000-year-old Skara Brae. The designated World Heritage Site, a fascinating commune of small interlinked stone dwellings, is one of the most-visited tourist attractions on the historic Orkney islands and offers up to 60,000 visitors a year an unparalleled taste of life in Neolithic Orkney.

SIG Design & Technology and SIG Insulation are working with the Interserve Kajima consortium on a batch of seven secondary school projects to deliver a value-engineered, robust roofing solution. At Stopsley High School there are two roofs installed by Briggs Amasco in an approximate 16 week programme. The largest roof measures some 2500m2 and the inverted roof build up selected and supplied by SIG comprises IKO’s PermaTEC hot melt waterproofing system.

This project, to coat approximately 2000 sq metres of asbestos roof with the BBA Approved Asbestsoeal system is a lesson for all in correct health and safety. Liquasil provides all approved installers with H&S training as standard. This deals with correct use of netting, scaffold, walkways, work platforms and waste water filtration from asbestos roof cleaning. Having already completed 500sq metres on a unit a year previously, the contractor was invited back to complete the rest of the block, which is the best possible endorsement.

Bilco UK’s special zinc-clad Roof Access Hatches and Smoke Vents chosen for the Zaha Hadid designed Glasgow Transport Museum, Scotland. The roof specification included Smoke Vents and Roof Access to blend with the roof finish. Bilco supplied modified units with zinc cladding to achieve the desired look. To enable safe roof maintenance, a modified E-50T Hatch was supplied and installed to the 46 degree sloping roof enabling maintenance staff to gain easy, safe access to roof equipment

A project utilising our Del Carmen Spanish Slate took home the award for Roof Slating at this year’s UK Roofing Awards, hosted by the National Federation of Roofing Contractors (NFRC). The NFRC is the largest and most influential roofing trade association in the UK, promoting both quality products and contractors, while ensuring that its members are at the forefront of all roofing developments. Contour Roofing (Essex) was given the task of providing the roof coverings to St Joseph’s College, a Grade II listed building (1866) on the fringes of Mill Hill Village.

A sense of community, abundant greenery and lake views on the roof terrace for all residentsThe housing fair is held annually in Finland. In 2021, it will be held in a scenic location in Lohja, Southern Finland. An interesting partnership quarter will also be put up in the fair area, where a sense of community has especially been taken into account in the planning. A block of 34 modern and energy-efficient apartments. The principal designer of the site is the architect Sasu Alasentie from UKI Arkkitehdit.”The idea behind the whole quarter is a sense of community. The flats in the building do not have their own saunas, but instead a communal use sauna will be constructed on the roof terrace. You can see the wonderful lake scenery from the roof and by utilising the roof terrace we wanted to ensure views of the lake to all residents. The yard areas of the quarter are fairly compact, but the roof terrace creates more greenery and communal outside areas for all the residents to use. We also hope that this will increase the residents’ team spirit and sense of community,” says Sasu Alasentie about the basis of the planning. ”On the roof terrace, we will also build an individual planting box for each resident, where they can cultivate herbs, flowers or whatever plants they want. A small summer kitchen corner and dining area will also be built there, as well as hanging chairs for lounging around. All in all, the area will hopefully become a communal, green oasis to spend time in, for all the residents,” says Sasu Alasentie. ”When we were choosing materials for the terrace, it was important to us that they would be in keeping with the building’s ecological nature and energy efficiency. Together with the contractor, we decided on the UPM ProFi Piazza composite for the terrace material. What appealed to us about it was particularly its durability and that it was easy to look after. Naturally also the fact that it’s made of recycled material, which fits well with the environmentally-friendly ideology of the whole building. I believe that in future projects, environmental friendliness and materials made from recycled materials will become even more popular,” says Sasu Alasentie.  

In the Peak District National Park with views of Cressbrook Dale and the Monsal trail, a thermal bridging solution developed by Owens Corning FOAMGLAS® is helping to deliver high levels of thermal performance for a new, modern home with a minimal space heating demand.The Quarry is a mostly single storey, green-roofed dwelling set on the site of a former shallow stone quarry. Working with John Pardey Architects (JPA), client Will Griffiths secured permission for a modern design faced with traditional materials to ensure a development that sits comfortably within the landscape.

Surespan designed and manufactured several fire-rated roof hatches for the Killeen ISD East/West Ward Elementary School, in Killeen Texas.  The Project:Huckabee is the architect behind the East/West Ward Elementary School, tasked with replacing two 60-year-old campuses, by combining them into one new holistic learning environment. The planning behind the architecture focuses on efficiency, function and ease of wayfinding. From simple to navigate corridors, modernised classrooms and glazing to illuminate the interior with natural light. East/West Ward Elementary School blends district design standards with innovative thinking to achieve spacial efficiency and maintain equitability.Product:Surespan designed and manufactured five 35.5-inch x 35.5-inch Fire Rated Roof Hatch with an integral guard hand railing attached. These hatches are thermally broken and have been designed and tested with 4-hour fire resistance for integrity to EN 1634-1:2014.  Features:These hatches are using environmentally friendly materials such as non-combustible minerals and fireboard cladding to achieve a top-performing thermal efficiency. All the hatches were finished in a light grey polyester powder-coated finish for an aesthetically pleasing solution. The coating is set to last many years, just like the durable masonry veneer that is featured in the building, helping to maintain the space for years to come. 

The client contacted us in urgent need of a green roof solution before a project handover. Green roof was part of the planning application. Pre-grown panels with patented design were delivered on pallets and lifted to the roof via forklift. The ingenious connecting system means each module clicks to its neighbour tightly and securely so once installed, the sedum has a seamless appearance. The plants are a mixture of sedum species ideal for the UK climate. They are well rooted into Wallbarn's bespoke substrate and fully mature. 250 sqm of green roof was installed in 1 day.

See how RynoPaveSupport paving pedestals helped create a sophisticated roof terrace in the new neighbourhood rising above the area of Canary Wharf.

TapcoSlate is a great product, but it’s also how you use it that makes a project stand out from the crowd! Roofing industry expert Jos van Bommel is someone who knows exactly how to achieve this. During the renovation of his own home, Jos refurbished the entirety of the roof along with help from his three sons.

The Down to Earth Training Centre, built almost exclusively with natural and locally sourced materials required an anti–root roofing system, ready for the install of a green roof.

Premier Loft Ladders were contacted by a specialist food processing plant to replace a damaged retractable roof access ladder. As this presented the only means of access for maintenance of roof top equipment, it was important that the replacement access ladder was strong, durable and easy to operate. The Supreme with flat roof access hatch provided the perfect solution. Please follow the link below to learn more about this high-specification project...

IntroductionFerrari World in Abu Dhabi is the world's first Ferrari theme park. The park includes 37 different rides and attractions and features the world's fastest rollercoaster “Formula Rossa” – reaching 240 km/h in 4.9 seconds. The park has been open since 2010 and has been nominated for numerous awards. Project:Ferrari World in Abu Dhabi needed a unique solution to allow for the maintenance of rollercoaster carts. Due to restricted space, a sliding hatch was proposed to allow easy craning in and out.Products Supplied Surespan manufactured and supplied an SLHE Aluminium, thermally broken, single leaf, electrically operated, sliding roof access hatch. The hatch was a large 5400 x 4000 structural opening sliding hatch.A sliding hatch allowed maximum clear space. Operated by a 230v geared motor. The lid and upstand are filled with 50mm thick CFC and HCFC free Polyisocyanurate insulation which offers a U-Value of 0.43W/m²K.

Abu Dhabi Airport Company signed a contract for the construction of infrastructure integral to the Abu Dhabi International Airport expansion. The project was set to be delivered across multiple work fronts including airside and landside airport operational areas. Surespan was asked to supply a number of 2-hour fire-rated, FACTA Class AA, SAC floor hatches with a free-standing guard rail to three sides and a hinged gate. In addition to this, a number of Grade 304 Stainless Steel roof hatches with a unique ‘sandblasted’ finish and built-on non-penetrative SureGuard hand railing were also supplied.

Ampteam Limited, were asked to provide a UNIFOLD® scheme for the conversion of level gutters, serving the central roof area of the building, to falls conditions, with a brief to eliminate standing water and leaks which had plagued the building for some time.Some 900 metres of valley gutters serving four separate Atrium roof areas in banks of six, which in turn are served by 5 metre wide valley gutter sections serving as Access and escape link bridges, were requested to be converted from level to laid to falls.Lower valley gutter bounding the periphery of the roof area serve and discharge the main roof area via 5 metre wide chutes from the escape link bridges. Positioned in the less sensitive areas, these were allowed to be laid level, although their existing holding capacity has been improved.The existing roof and gutter areas had initially received a PVC membrane when built. This, however, was patched in many areas and showing signs of deterioration. There were many concerns about the continued longevity of this installation.UNIFOLD® Gutter Lining System was chosen for its versatility, unfailing ability to replicate existing systems, provide falls conditions in level gutters and its long life. The system is also guaranteed for 20 years.Tapered Cork insulation was chosen to provide the base for the gutters and this was supplied in cut sets. The fall ratio was based on a minimum of 1:150. The Unifold gutters were purpose made to suit the falls ratio and provided in numbered sets to suit the individual gutters.Full site information was provided including schemes of falls, laying sequences and special details and instructions. In all, more than 50 separate drawings were issued to site. In accordance with Ampteam policy, all fabrication was factory manufactured and sealed prior to delivery to site. This ensures complete installation quality and integrity. The valley gutters serving the central Glazed Atrium roof areas were installed first. These comprised an apex at the central position of the gutters with falls arranged down to discharge ends at the Escape Link Bridges.As the glazed Atrium roof was above a sensitive area, no weekday work was allowed.Friday deliveries were permitted but all work was conducted during weekends.The end Atrium Roof area valley gutters were single fall from a transverse gutter at the outer perimeter edge.Access into the transverse gutter was extremely tight and normal joints could not be made so sections of UNIFOLD® were supplied to span individual Atrium ends and joins were made at the junctions with the valley gutters via factory manufactured tees, using UNIFOLD® patented clip joints.The existing transverse gutters were already higher than the valley gutters to aid discharge, but in order to create the necessary falls the UNIFOLD® transverse liner was lifted sufficiently to provide the required falls for the valley gutters.There was space to achieve this condition without compromising the capacity of the original transverse gutters.

IntroductionFollowing consultations with our design team, Surespan designed and manufactured a large double roof hatch for the National Oilwell Varco Dunfermline factory in Scotland.Products suppliedWe supplied;Surespan designed and manufactured bespoke double leaf hatches, measuring 4 metres by 4.3 metres. These hatches enable an external crane to lift the manifold units through the roof.With the use of a key, these hatches are controlled by a small PLC that electrically operates the Hatches in an automated sequence.Features:The bespoke double leaf hatches were specially designed to stay open utilising strut locking to withstand the wind condition they specified with the design team.The projectThe NOV Dunfermline factory experienced difficulties building tall manifold assemblies due to the restricted height of the building. Following a consultation with our experienced design team, they were able to design a solution to solve the issue.The outcome: NOV were able to continue its operation in the existing factory without having to hire temporary premises.

A new car park has been constructed near the Hornschuchpromenade in Fürth and covered with an extensive green roof system. The car park has capacity for 380 cars and has been designed by The Max Bögl Group (MBG) with ease of construction, cost efficiency, visual impact and low maintenance in mind. In collaboration with contractors Isobautec, they selected MobiRoof green roof system from Mobilane as the most suitable option to cover the 1300 square metre roof expanse.

The asbestos cement roof to this industrial unit in Hereford was heavily contaminated with moss and lichen and was leaking in numerous places. The moss and other vegetation was first dampened down, scraped off and placed into designated asbestos waste bags for licensed disposal. The roof was then steam cleaned. All metal fixings were treated with Liquasil's rust primer and sealed with Non-Sag Sealer. Small holes and cracks were sealed with Non-Sag Sealer. The entire roof was then coated with Asbestsoeal 20 and is now resistant to moss growth and water leaks.