"asphalt roofing systems"

In 2014 discussions took place between IKO and Architect for the property, over the possibility of renewing the mastic asphalt roof coverings with an IKO Permaphalt Polymer Modified Mastic Asphalt System. During 2015 this process took place with the work being undertaken by Knight Asphalte, one of IKO’s Approved Contractors. During the works some 35 tonne of IKO Permaphalt was installed and due to IKO’s commitment of supplying Carbon Neutral Mastic Asphalt we are able to calculate the impact this has on the population.

Hundreds of homes have been refurbished as part of a multi-million pound revamp of housing association properties.Tristar Homes spent £8m on the scheme at Kennedy Gardens in Billingham where they carried out work on 225 properties across the three housing blocks as well as creating 12 new one and two bedroom homes which have been made available for rent.The development, completed in September 2014, includes the fitting of new windows, new bathrooms and improved living space due to the new balcony extensions.The roof area before its refurbishment had a U-value of 0.4 W/m²K. This existing build-up would not have met the requirements of the current building regulations Part L.The lower roof had been overlaid at least twice since its original construction. In all but one core sample, the existing insulation was wet through and therefore it was apparent that 90% of the existing roof build up needed stripping to the original asphalt. A further inspection was needed when the asphalt was exposed to ascertain the condition and depth of the asphalt. The asphalt was deemed in reasonable condition so the new system could be installed onto the original asphalt.IKO worked with installing contractors BriggsAmasco to refine the roof specification and recommended IKO Mach One single layer bituminous membrane system, installed to the recommendations of wind uplift calculations and performing to a 0.18U value as per requirements.IKO Mach One membranes are a robust, flame-free, single-layer roofing system with added fire-retardancy. IKO Mach One can be mechanically fastened, ballasted or bonded with polyurethane adhesive.A 20-year insurance-backedfire retardancy guarantee was issued to cover all materials, design and workmanship covering contractor insolvency.

The purpose: Water penetration into classrooms alerted theOfsted “outstanding” rated Colchester County HighSchool for Girls in Essex to a problem with its roofs.Its premises advisors, Archer Building Consultancy,turned to Langley to offer technical support for themost efficient best-value rectification, with fundingprovided by the school’s governing body, The AlphaTrust.Our solution: We carried out an in-depth roof condition report which highlightedthat the four flat asphalt and 10° pitched copper standing seamroofs urgently need repair.We advised the most efficient solution and use of resources wasto strip the copper roof back to the plywood deck and form a newwaterproof layer from our TA-30 Flat Roofing System and theasphalt roofs overlaid with TA-30 and our Liquid Roofing System.By leaving the original roof, we were able to minimise disruption.In the process, we assessed the roofs for their suitability forphotovoltaic (PV) installation, then helped address energy costs:one over a three-storey building was deemed appropriate. Finally,in partnership with Archers, we supported the detail required toapply for Salix funding to cover the supply and installation of thePV array.

Brand New Oasis Academy, Silvertown Leads Education Facilities by a Mile with Garden Roof Spaces, and Rooftop Sports Pitch In the heart of what is now the Royal Docklands, a former industrial zone south of Royal Victoria Dock lies a brand new carefully considered Academy. Set to serve 600 students in this emerging community, the “superblock” thrusts modern educational facilities well into the 21st century. Despite the constrained site, the building design harmoniously incorporates vantage points from outdoor social spaces at varying levels.There’s no need to worry about a gravelly all weather pitch causing havoc at your hockey match. There’s a state-of-the-art full size Multi-Use Games Area, lush planted external roof spaces, a double height sports hall, and main hall/performance area making up the core of the building inside.CLIENT BRIEF AND DESIGNRenowned in their field, regeneration experts Morgan Sindall required a single sourced end-to-end roofing solution that could deliver a full system specification underpinned by a 35-year system warranty, installation expertise and site management.Understanding the Architect’s vision at award winning Rivington Street Studio to create a transformative educational haven and maximise the potential of the outdoor roof areas helped the Alumasc Roofing team bring this roof to life.PARTNERSHIPWorking with the project teams across Morgan Sindall, Rivington Street Studio and Fenland Flat Roofing pushing the boundaries and setting the standard for the future of the built environment in the Education sector.Tim Mott, Senior Design Manager, Morgan Sindall, “Brian and the Alumasc team have been on-site with additional safety constraints and delivered high-quality regular progress reporting to achieve the deadlines for the students to move in next year and really put these fantastic facilities to use.”Brian Cottington, New Build Regional Manager - South East & London, “The original specification included warm roof build ups which utilised tapered insulation, however this was subsequently adapted and working closely together with the Architect, Morgan Sindall and Fenland Flat Roofing we implemented a universal standard build up using an inverted system, with less complexity whilst achieving the high system performance and BRoof (t4).”Richard Trew, Associate, Rivington Street Studio, “The garden roof areas and outdoor space bring this building to life and against the industrial backdrop create a nurturing school environment. It was great working with the Alumasc team solving problems and overcoming design challenges along the way.”Chris Preston, Estimator, Fenland Flat Roofing, “Working closely with the local Alumasc Roofing Site Technicians and engaging in extensive discussions agreeing the final system requirements meant the installation process ran smoothly.”ENVIRONMENTALLY FOCUSSED SOLUTIONThe high performance Hydrotech inverted roof is a special formulation of refined asphalts and synthetic rubbers with 30% recycled content. Installing insulation with exceptional thermal properties including 300mm extruded polystyrene insulation and 56mm inverted upstand insulation effectively reduces heat loss.SAFETY PERFORMANCEThe application is a one-component, hot-applied, fully reinforced, flexible, self-healing hot melt monolithic membrane, applied in a liquid state to the substrate giving a 100% absolute and seamless bond.The Academy has a 35-year warranty for the works and has a fire classification of BRoof (t4) in accordance with BS EN 13501-5.ABOUTThe Oasis Academy is set to open its doors February 2022. Images courtesy of Rivington Street StudioCompletion: Autumn 2021Main Contractor: Morgan SindallAlumasc Registered Roofing Contractor: Fenland Flat RoofingArchitect: Rivington Street Studio

Topseal PU was specified over numerous roofs on this hospital covering 1000's of metres. Topseal PU was chosen due to its BBA certification, high performance, 25 year guarantee, low odour together with the failed asphalt roofs and amount of plant on the roof it was the perfect product.

The Grade I listed Round Tower (dating from the 1400’s) is a fortification at the entrance to Portsmouth harbour it overhangs the Portsmouth sea front making it susceptible to coastal weather. It’s current waterproofing system needed replacing, The IKO Permaphalt System was chosen due to the 20 year guarantee it offered and the previous heritage projects IKO have successfully helped preserve with various waterproof solutions. Existing coverings were removed and replaced by Southern Flat Roofing & Pitched Roofing Ltd, providing a surface that would withstand constant foot traffic as well as the weather that many seafront structures suffer from.

Burton Green Primary School is located in the historic city of York, an outstanding school at the heart of a local community this primary school strives for excellence. The challenging and nurturing learning environment allows children to learn and grow, while achieving the highest potential possible in all areas of the 21st century curriculum.When the roof began showing signs of ageing, it was clear that a long-term solution was required. Working with Project Managers Charles Garth and Principal Contractor Castle Special Projects, Polyroof would work towards providing the best solution to refurbish the ageing roof.The work required and condition of the roof needed to be established first, to do this a survey was scheduled to take place. The survey was conducted on roofing area and it was determined that there were 6 flat roofs that required refurbishment. Areas 1 to 2 were constructed of a built up felt with mineral cap sheet, 50mm PUR insulation, bituminous vapour control, asphalt, 12mm fibreboard and a 50mm woodwood slab deck with timber joists. Areas 3 to 5 were constructed of a built up felt with mineral cap sheet, 50mm Jablite insulation, bituminous vapour control, asphalt, 12mm fibreboard and a 50mm wood wool slab deck with timber joists. Roof area 6 was made up of built-up felt with mineral cap, plywood and timber joist. The original build-up of roofs 1 to 5 needed to be stripped back to the asphalt due to the aged condition of the built-up felt, numerous leak reports were reported. Roof 6 and its original waterproofing was to be retained and made good, later this surface would act as the substrate for the new waterproofing system.Once the survey was completed, a bespoke specification was written and it was recommended that the roofing areas would all benefit from a high-performance waterproofing system. In addition to this it was specified that the roof would be thermally upgraded to reduce the risk of condensation and provide lower fuel bills and energy consumption for Primary School further adding benefits to making improvements to the roof.Liquid Roofing Limited an experienced roofing contractor and Polyroof Approved Contractor was chosen to undertake the work to this project. The proposed system for this project would be Polyroof Protec Warm Roof System. Protec’s liquid roof membrane has a unique flexible hybrid polymer formulation and can be applied to virtually all common roof surfaces.The areas that were required for installation firstly needed to be stripped and removed back to the asphalt, areas 1 to 5 required this. Area 6 was then repaired of any defects and made good where necessary. All roofs required a deep clean, removing any dirt or debris that remained from the first stage. Once this preparation was completed an Air & Vapour Control Layer (AVCL) was then installed to roof areas 1 to 5 making sure that all surfaces are smooth and without voids.Using a Polyroof Twin Pack Insulation Adhesive the Polyroof RES insulation (T&G) boards were bonded and laid to each of the 6 roof areas completing the second stage of the warm roof upgrade. Before the last stage of the installation could begin all joints in the insulation were sealed using taping matt and Polyroof Protec Resin. Polyroof’s extra-tough GRP trims were then installed to create neat and robust edge detailing for exposed perimeters before the main Protec system application commenced.During the project there were some challenging aspects that required care and attention. The project featured a large array of different details ranging from installation of new substrates and trims for parapet walls to the removal of and preservation of tiles/cladding so that the Protec system could be applied correctly. These features required delicate work so that the original tiles/cladding could be reinstated after the application of the system was completed. During the project the rooflight that was originally in place was removed and replaced with a new, before this could happen the Protec system was taken up the upstands and then sealed under flange.Once the project was completed within the relevant time frame of the client and within the budget specified, the Polyroof Technical Services team conducted a detailed inspection showing a high level of workmanship which lead to the client gaining the trusted Polyroof Accredited System Guarantee.

This new adventure village at a large Haven holiday park in Gwynedd, Wales required a safe decorative surface for visitors. The light buff coloured asphalt complemented both the design of the adventure village and the coastal setting far more than conventional black asphalts or block pavers.

150 CheapsideBauder Hot Melt structural waterproofing systemSynopsis150 Cheapside is a new-build office development in the City of London, offering some 182,740 square foot of office space on eight floors. Overlooking St. Paul’s Cathedral, this landmark construction has recently gained an ‘Excellent’ BREEAM rating.Bauder Building BoardProject:              150 CheapsideLocation:           LondonRoof Area:         2000m2Investor:            St Martin’s Property InvestmentsArchitect:          Michael Auckett ArchitectsContractor: Knight AsphaltThe specificationThe client, St. Martins Property Investments, opted to use the Bauder extensive green roof finish, combined with Bauder’s Bakor waterproofing build up - a durable hot melt system installed at a comparatively low cost compared to traditional felt solutions.The resultWith both the waterproofing and the sedum blanket finish being sourced from one supplier, complete compatibility was guaranteed providing the client with an ‘immediate’ green roof finish and waterproofing build up with a life expectancy in line with that of the structure.System installedBauder Bakor 790-111 BauderPLANT E 42Torch-on root-resistant capping sheet green2 790-11 with reinforcement layerHot melt rubberised bitumen asphalt with a percentage of post-consumer recycled materials that infills and fully bonds to all minor deviations in the deck.3 DeckPrimed concrete.

Along with re-surfacing, inspection, showed signs of wear and tear on the bridge surface areas too. Consulting Engineers, Jacobs, approached IKO for the specification, and Galliford Try won the tender. BriggsAmasco were chosen as the installing contractor. IKO’s Permatrack Bridge Surfacing system was chosen - a waterproof mastic asphalt wearing course for Bridge Decks containing both polymer and epure (Trinidad Lake Asphalt) modifications to the bitumen binder, which offers improved material flexibility and maintains good rut resistance. Existing mastic asphalt surfacing and bridge deck waterproofing was stripped off and replaced with Stirling Lloyd’s eliminator waterproofing system and Permatrack.

The Hold Bauderflex bituminous waterproofing systemSynopsisThe Hold is the home of the Suffolk Archives; safely housing the bulk of Suffolk's nationally and internationally significant artefacts and archives which is open for the public to explore.Bauder Building BoardProject: The HoldProject type: New buildLocation: IpswichWaterproofing: BauderflexRoof size: 2307m²Specifier: Pringle Richards SharrattApproved contractor: Voland Asphalte Company Ltd

Ulticolour coloured asphalt provided a new surface was required for the extensive footpaths at a new £12 million leisure park in Snowdonia. The buff coloured asphalt perfectly matched the surroundings and provided a safe surface for pedestrians and the site staff.

Ulticolour coloured asphalt provided a new surface was required for the extensive footpaths at a new £12 million leisure park in Snowdonia. The buff coloured asphalt perfectly matched the surroundings and provided a safe surface for pedestrians and the site staff.

With bright colours that improve demarcation on roads and cycleways and an impressive track record of long term performance on UK roads, Ulticolour was the natural choice for this sustainable transport project.ULTICOLOUR coloured asphalts are BBA HAPAS accredited for use on UK highways as a thin surface course and have been used on UK roads for over 20 years. ULTICOLOUR asphalts use a clear binder and colour matched aggregates to produce brighter coloured asphalts that provide effective demarcation on footpaths, cycle lanes and highways. They have demonstrated impressive durability and long-term performance, even on heavily trafficked routes like busy bus lanes. 

Heavy duty surfacing was required for new access roads and car parking areas as part of a project to extend this business park located close to the A1 near Biggleswade. Using HGV resisting Ultiphalt HD asphalt on access roads combined with ULTIPOROUS free draining asphalt on parking areas provided both sustainable drainage and long term durability.

This large car dealership in Dorset required a new car park surface for the external paved areas. Planning requirements meant that a porous system was required to enable sustainable drainage and avoid large scale run-off into the surrounding catchment. Using Tarmac's ULTISuDS porous asphalt sustainable drainage systems met the needs of the local planners by managing surface water and reducing direct surface water run-off, but also met the client’s requirement for a safe, accessible all-weather surface for their customers. By eliminating surface water, it also eliminates the problem ice patches that can occur in cold weather conditions. It would also be durable enough to cope with daily vehicle movement and static loading from cars that were on display. 

The client required a durable, low-maintenance, all-season surface for this 3.3 km stretch of two-way, segregated cycleway in Birmingham that would offer clear demarcation and provide a safe, appealing route for cyclists.ULTICOLOUR, Tarmac’s durable coloured asphalt was chosen to surface this cycleway, in a mid blue colour, to provide clear demarcation from the existing road surface. Using a high performance clear binder it offers brighter coloured asphalts, ideal for demarcation. ULTICOLOUR SMA is BBA HAPAS approved for use on UK highways as a coloured thin surface course and has been in use on UK roads for over 20 years. It has proven to be highly durable, delivering lasting performance, even on highly trafficked roads. ULTICOLOUR can be laid quickly over large areas using standard paving equipment, just like a conventional surface course.

The existing waterproofing had failed due to a previous poor installation, the result of which saturated the insulation below the exterior roofing. New high performance solutions were specified that included a range of IKO roofing waterproofing systems to protect both the flat and pitched roofing areas of the building. IKOslate, a robust and durable tile was specified for the pitched roof due to vandalism and the fragility of the current system, whereas a tapered scheme was required for the flat roofing - IKO Ultra Prevent alongside a cold applied liquid solution (IKO Polimar) for the more intricate details.

Find out why we recommend rafter ventilation slides when using spray foam insulation in pitched roofs where a high-resistance roof membrane is in place. The rafter slide not only provides ease of access to the external roof for future repairs/replacement, when ventilated appropriately, it can be effective at managing moisture.

Perry Hall Academy, a large primary school built in 1949, with original waterproofing still in-situ. IKO assisted the Academy funding bid by providing a detailed survey report, including intrusive core sample analysis. The roofs were suffering from water ingress, cracks in the mastic asphalt, pooled water and poor heat retention, so decision was made to replace the roofs throughout. New rooflights were also specified to allow more natural light in while the design chosen reduced the external noise transmission. IKO worked with specifier Concept Education Services to deliver the project (some work during term-time) within 6 months.

Product: FastCoat ProProject: Honeywell Multi-RoofProject Size: 6000m² in: Approx. 3 months

In early 2020, Birmingham City Council granted planning permission for the redevelopment of Alexander Stadium, ahead of the Commonwealth Games to be held in 2022. As part of this large-scale redevelopment, the client needed a footway surfacing material that would combine visual and aesthetic appeal with a long-lasting finish, tough enough to withstand use by the thousands of visitors expected for the Commonwealth Games.  The new coloured asphalt footways around the stadium track matched the grandeur of the new stadium development and provided the visual impact and visitor appeal that the client was looking for. It also helped provide clear demarcation for spectators to identify pedestrian footways and segregate vehicular traffic from foot traffic. The proven durability of ULTICOLOUR asphalts will ensure that the new surface should be maintenance free for many years.

Ulticolour coloured asphalt was used as part of this striking geometric design for a community space, as part as part of the regeneration of the former Ravenscraig steel works.

Hethel Engineering CentreBauder Thermoplan FPO single ply system with Bauder solar PV systemSynopsisHethel Engineering Centre supports high performance engineering companies located throughout Norfolk. The original building at the centre had been operating at maximum capacity and they urgently required a new building to satisfy increasing levels of demand. The client wanted the new facility to meet a high level of sustainability, achieving a BREEAM excellent rating and using key renewable technologies, such as photovoltaics (PV) to minimise its environmental impact.Bauder Building BoardProject:Hethel Engineering CentreLocation:Hethel, NorfolkProject type:New buildRoof size:2,500m²Specifier:NPS GroupApproved contractor:Voland AsphalteThe specificationBauder’s Thermoplan single ply membrane was specified for the new building’s 2,500m2 roof due to its longevity. Roof areas totalling 500m² were fitted with 160 PV Modules, enabling the centre to generate at least 44.23 mWh of solar power each year and annual CO² savings of 23.40 tonnes. The PV system was installed without any penetration of the waterproofing or roof deck, ensuring the integrity of the roof is completely upheld. The simplicity of the installation also meant that approved contractor, Voland Asphalte, could install the entire PV array in just one day.Products appliedBauder solar PV system160 solar photovoltaic modules were installed with an expected energy generation of 44.23 megawatt-hours and a kilowatt peak of 47.20 along with Bauder's Thermoplan single ply membrane.  Project challengesThe centre remained operational throughout the works, which caused logistical challenges, however all deliveries were timed as not to conflict with vehicles moving in and out of the facility. The work at HEC was completed on time and to budget, providing the client with an innovative roof that boasts extraordinary environmental credentials.System installedThermoplan Single Ply System 1 Bauder Thermoplan FPO FPO membrane with laminated fleece for adhered installations; pre-coated cross weave polyester reinforcement for high levels of tear resistance.2 BauderPIR M 60An efficient PIR flatboard insulation with aluminium foil facing on both sides and rebated edges to remove a thermal bridge.3 BauderTEC KSDA technically advanced self-adhesive elastomeric bitumen air and vapour control layer with an aluminium foil facing for vapour impermeability.AdvocacyKarl Manning at NPS Group: “Hethel Engineering Centre is a perfect example of a project where outstanding workmanship and top quality products can harmoniously come together to deliver an exceptional, sustainable roofing solution. The Voland team in collaboration with Bauder provided the highest degree of technical support throughout the project, helping us overcome any issues we encountered promptly and efficiently.”

Cranbrook Primary SchoolBauder Total Roof System (BTRS) with Tapered insulation schemeSynopsisCranbrook Primary School in Ilford, London, was experiencing some major water ingress due to the advanced deterioration of the existing roof system. A roof survey was conducted by Stuart Parratt, Bauder area technical manager, where core test samples were taken to identify the existing roof construction to deck level and to provide an indication of the roof condition. The survey revealed that the existing waterproofing was in extremely poor condition, with extensive evidence of water ingress.  Bauder Building BoardProject:Cranbrook Primary School Location:LondonProject Type:RefurbishmentRoof Area:440m² Client:London Borough of Redbridge Council Approved Contractor:Thameside Roofing Ltd The specificationThe original waterproofing had been poorly overlaid with EPDM which had subsequently debonded. Before the installers could begin laying the new system, they had to strip the substrate back to the original asphalt. The client required a robust system that would deliver durability, value and longevity. 390m² of bitumen waterproofing, Bauder Total Roof System (BTRS), was specified for the main roof areas and 50m² of our cold applied liquid waterproofing, LiquiTEC, for an area that had limited upstands due to clerestory windows that could not be repositioned. Products appliedBauderPIR tapered insulation  A lightweight and cost effective alternative method of providing falls to a roof, whilst also providing thermal insulation. The client opted for this scheme at Cranbrook to minimise standing water on the roof. Bauder Total Roof SystemA two-layer bituminous waterproofing system robust enough to withstand foot traffic and most permanently sited plant. For use within warm and cold roof scenarios, as well as overlaying existing roofing materials. BTRS meets current UK Building Regulations Part B for external fire protection and features torch-free and safe to torch installation on combustible details. LiquiTEC Cold Applied liquid waterproofing Utilising Bauder’s PMMA cold applied liquid waterproofing on one of the roof areas ensured a fully watertight solution around rooflights and below upstands that could not be raised.  Project challengesAlthough the deck appeared to be in a reasonable condition for reuse as part of the refurbishment, there were large deflections to some areas and the existing waterproofing that overlaid the original system had been poorly installed and had pulled away from the asphalt below and so needed stripping prior to works commencing. The existing insulation was inadequate and left the building falling short of the current requirements. A thermal upgrade was incorporated into the works using a tapered insulation scheme which helped to solve the deflection issues by creating falls on the roof. To meet the minimum upstand requirements, the existing extractor vents needed to be removed to allow for the increase in the kerb height. Large continuous structural rooflights providing natural light to the building below were deemed thermally inefficient. The rooflights were upgraded during the refurbishment to meet current standards.  The resultBauder systems are only installed by Bauder approved contractors to ensure quality. The installation on this project was expertly carried out by Thameside Roofing Ltd, overseen by Dave Gregory and John White. After sign-off from Bauder site technician, Paul Osbourne, this system was awarded a comprehensive guarantee.  Systems installedBauder Total Roof System (BTRS) with Tapered insulation1 Bauder K5KHeavy duty, torch-applied SBS elastomeric bitumen capping sheet featuring a spunbond polyester reinforcement to allow the finished product to cope with structural movement without fracture, and a mineral finish to provide protection against UV degradation.2 BauderTEC KSA DUO Technically advanced self-adhesive SBS elastomeric bitumen underlayer with “DUO” lap technology to ensure thorough sealing of lap joints, even in lower temperatures. 3 BauderPIR FA G16Tapered PIR Insulation board manufactured in accordance with BS EN 13165 with no facings. It is lightweight with a high compressive strength and has zero Ozone depletion potential. The product provided effective drainage as well as efficient thermal insulation.4 BauderTEC KSD FBSA technically advanced, self-adhesive SBS elastomeric bitumen air & vapour control layer, with a mica finish on the upper surface to allow easy bonding of insulation using the specified Bauder Insulation Adhesive.

Liberty Point is a large student accommodation building positioned in a prime location in Southampton, close to the marina and city centre. The old asphalt and felt coverings had begun to display defects including splits, blisters and delamination; through which water ingress was occurring.The property management company responsible for the maintenance of the buildings decided to act quickly and find a permanent solution to the leaking that could be installed without disruption to the busy students living there.The SolutionPolyroof’s Protec System was decided upon as the best option due to the numerous details that would have to be encapsulated on the roof area. There is no liquid system that can do this quicker or more effectively than Protec; its unique RapidCure technology sees it turn from a liquid to a robust and flexible membrane that can be walked on after 30-60 minutes following application. Furthermore, its ability to coat an old roof without the need for stripping existing means that installations can be carried out within stringent time frames and with minimum disruption.CompletionWilliams Roofing Contractors Ltd, a highly experienced Polyroof approved contractor, carried out the installation. The quality of the workmanship coupled with the right choice of roofing material made for a superior refurbishment solution that remedied all the existing issues. The client was delighted with the finished roof and will have guaranteed peace of mind for decades to come.

Stow House is a boutique bed and breakfast set in the heart of the Yorkshire Dales. They had the Topseal waterproofing roofing system installed and a sedum roof to finish the new extension.

A good example of the before and after effects of laying a sedum roof garden and accompanying deck and paved area onto a small domestic roof terrace. All these products are designed to sit on top of the waterproof membrane (in this case single ply) there was no issue of damage to the roof. The support pads lifted the decking off the roof, eliminating the risk of the timber piercing the membrane, and drainage was maintained through the roof surface since the green roof system has a cavity beneath its own reservoir and drainage layer to allow water run-off.

Belvedere CourtBauder Hot Melt structural waterproofing systemSynopsisThe impressive Belvedere Court 4-storey building, which was converted from a hotel into 16 prestigious residential apartments in 2008, recently underwent further development including extensions for additional accommodation, basement housing, a communal swimming pool, a theatre and an underground car park.As part of the refurbishment of the site, the failing waterproofing of the green roof on the car park roof deck needed to be removed and replaced. Bauder approved contractor, The Complete Roofing Company (TCRC), initially proceeded to remove the existing pathways and landscaping before removing the failed system and providing remedial repairs to the damaged roof.Bauder Building BoardProject:Belvedere Court​Location:Sidmouth, Devon​Roof Area:1,316m²​Specifier:The Complete Roofing Company LtdApproved Contractor:The Complete Roofing Company LtdEnvironmental Focus:Intensive green roofThe specificationWith the car park roof also being used as a recreational green roof for the residents of Belvedere Court, the Bauder Hot Melt Intensive Green Roof System was an obvious choice. The Bauder Hot Melt Bakor 790-11 EV with Polyester reinforcement creates a resistant monolithic waterproofing membrane whilst the Bauder AP2 root barrier provides resistance to the system allowing for a green roof to be installed above. As stated by BBA certificate 06/4350, this system provides a durable waterproofing solution for the service life of the structure that it is incorporated in. The resultOn completion of the waterproofing elements the roof was leak tested to ensure the roof’s integrity. The TCRC then installed the Bauder green roof components; PE foil, FSM600 protection membrane, DSE40 drainage layer, filter fleece and over 300 tonnes of Bauder intensive substrate. Finally, Rowland Gold turf was then installed with a drip line irrigation system installed under the turf. Upon final assessment, this project met the criteria to be issued a 20 year product and workmanship guarantee.System Installed1 BauderPLANT E 42Torch-on root-resistant, green capping sheet. Reinforced with spunbond polyester fleece to allow the finished product to cope with structural movement without fracture.2 790-11Hot melt rubberised bitumen asphalt with a percentage of post-consumer recycled materials that infills and fully bonds to all minor deviations in the deck.3 DeckPrimed concrete.

The roof on Bede Primary School and Community Centre in Gateshead was in great need of repair. Installing roofing contractors Hodgson and Allon liaised with IKO to refine the specification to meet the client’s requirements. This included a full strip and re-cover with a flame free system to carry a 20 year guarantee. IKO chose an IKO Mach One single layer bituminous system incorporating a site specific cut-to-fall system. This project was a complex roof replacement system with multi-trades required for specialist operations.

Wadham CollegeBauder Bakor 790-11 Hot Melt structural waterproofing system with BauderGREEN componentsSynopsisThe University of Oxford’s Wadham College graduate centre project was a complex refurbishment. Led by Lee Fitzgerald Architects and main contractor Feltham Construction it involved the careful restoration, adaptation and extension of the 1960’s grade II listed building.Bauder Building BoardProject:Wadham CollegeLocation:OxfordRoof Area:439m²Specifier:Lee Fitzgerald Architects​Main Contractor:Feltham ConstructionApproved Contractor:Deane Roofing & CladdingThe specification The brief for the project was to renovate the graduate centre and to link to the main college by creating a new entrance to the building. This led to the construction of a new building, the McCall MacBain Graduate Centre, which also now provides access to the Barbara Naylor rooftop gardens above the different reading, media and seminar rooms of the graduate centre. With the ageing existing waterproofing exceeding its life expectancy, the roof garden terrace was in need of a replacement roof system.As an accessible area which will experience a significant amount of foot traffic, the Bauder Hot Melt was determined to be the best solution for this roof. With a durability to match the expected life of the building and a self-healing system, the Bauder Bakor Hot Melt System is ideal for use on protected roofs such as inverted, paved, ballasted and terrace roofs.The resultApproved contractor Deane Roofing & Cladding carefully removed 439m² of the existing waterproofing, stripping the rooftop back to the concrete deck surface before installing the different layers of the Hot Melt system.The completed roof terrace now provides a modern and peaceful garden area where graduate students can relax and socialize between their work periods. Following several site visits by Bauder’s expert Site Technicians and a final leak test, a 20 year guarantee was issued for the roof terrace.System installed1 BauderPLANT E 42Green torch-on root-resistant capping sheet.2 790-11Hot melt rubberised bitumen asphalt with a percentage of post-consumer recycled materials that infills and fully bonds to all minor deviations in the deck.3 DeckPrimed concrete.

Over 1,200m² of Protan SE 1.2mm PVC single-ply membrane was installed in the Protan Vacuum roof system at Butlins Splashworld, Skegness. The roof system required no mechanical restraint or adhesives (except for around the roof perimeter and penetrations), as it relies upon the wind to keep the membrane in place with the help of Protan vacuum vents installed at locations designed by Protan's Technical Services Department. William Bird of Protan partner roofing contractor, Roofdec Ltd, commented, "Protan's vacuum roof system is quicker to install than conventional fully-adhered or mechanically-fixed systems."

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.

The building that would be the St Margaret’s Primary School, officially opened by Robert Leitch the local parish vicar in 1889 provided education to children up to fourteen. The school underwent many changes in structure throughout its over 100-year existence continuing to provide the high level of teaching it always held. In 2012 it underwent a further change in the form of a huge modernisation project that would extend the school and allow more students to be taken. Unfortunately, leaks were reported on the older parts of the building and despite localised repairs were not ultimately solving the problem.After reports of leaks it was imperative that the roofs in question were inspected to find where the issues were originating, in action to this a site survey was undertaken. The survey highlighted the original build-up consisted of an asphalt on a timber deck, this original system was in a aged condition. It was also shown that standing water and vegetarian had developed on the roof. In order to protect the building from further leaking it was determined that the roof would benefit greatly from the installation of a high-performance waterproofing system.Along with waterproofing improvements, there would also be improvements made to the falls which would reduce the amount of standing water present on the roof.Waterproofing would not be the only recommendation; the roof was also to receive a full thermal upgrade which would further provide the benefit of increase fuel bills and less energy consumption for the school.Taking into consideration all these points, the Polyroof Technical team began creating a bespoke specification that would provide the details needed to make these recommendations a reality. The Polyroof Approved contractor Thomas Cassie & Sons was specifically chosen to undertake this project due to their experience in liquid roofing systems. With a specification and approved contractor ready the project could officially commence.

The Ascent Aluminium Roof Access Steps were specified to meet the clients requirement to create a safe access route up & over the “saw-tooth” roof for maintenance personnel. In this instance the Ascent steps were specified for use with an adjacent MSA Latchways climb-latch fall protection system. If collective protection is required handrails can be supplied to one or both sides of the steps. The Ascent Aluminium steps were specified for this project by Eurosafe Solutions Ltd a specialist fall protection company who also installed steps. The Ascent Aluminium walkway steps are tested for use on the aluminium standing seam roof and are secured back to the roof sheet using a proprietary support clamp. The Ascent aluminium walkway is designed in accordance with BS EN 516:2006 Prefabricated accessories for roofing, BS 4592, Industrial Type Flooring and stair treads, BS EN ISO 14122-3 Stairs, stepladders and Guardrail, BS 7976-2:2002+A1:2013 Pendulum slip resistance. And is manufactured under ISO 9001 and CE 1090 factory production control procedures, creating a walkway that is CE / UKCA compliant.The walkway steps can be configured with a handrail to withstand a loading of either 0.36 kN (general duty) or 0.74 kN (heavy duty) and can be supplied with an optional toe-board if required. The system can achieve these loadings without the need for additional bracing, allowing the walkway to be placed against the area to be accessed. UKCA / CE marked. Designed & Tested in accordance with BS EN 516:2006 Class 1 Type C. Designed & Tested in accordance with BS EN ISO 14122-3:2016 where a handrail is fitted. Designed & Tested in accordance with BS 4592-0:2006+A1:2012 for loadbearing and BS 7976-2:2002+A1:2013 for anti-slip. With or without handrail.Standardized modular system roof walkway system. Can be supplied with a range of fixing kits to suit different roof profiles.

This exclusive up-market housing development in rural Somerset, required surfacing for what would become an adopted residential road. Planning requirements specified that a sustainable form of drainage would be needed to gain planning consent. ULTIPOROUS, Tarmac’s durable porous asphalt was recommended. It would allow full infiltration of rainwater to eliminate puddles and standing water even after heavy rain. It would also achieve a safe, all-weather surface for residents and avoid surface run-off into the local catchment. The approach taken, meant that no drains or manholes were required, which is another advantage of using this product for architects and designers. It would also deliver lasting durability, helping to minimise future maintenance requirements.