Call 24/7: 07832 878937landmarkroofingsloutions@gmail.com Get a Quote HomeServices3-Layer Felt Flat RoofingFlat Roofing # 3-Layer Felt Flat RoofingLandmark Roofing Solutions Landmark’s flat roofing specialism and Robbie’s preferred system, with the build-up explained. Request Your QuoteCall 07832 878937 - 10-year warranty on flat roof installations - 24/7 phone, always answered - Family-run, 4-person team - Public & employers’ liability insured Service overview ## 3-Layer Felt Flat Roofing: understand the whole roof Three-layer felt flat roofing is Landmark Roofing Solutions’ specialism. Owner Robbie Giles prefers felt, while also installing EPDM and GRP where appropriate. For a homeowner comparing replacement options, that preference is a useful starting point for a detailed discussion, not a reason to skip an inspection. The roof’s construction, drainage and existing condition still determine what preparation and specification are needed. A built-up felt roof uses several layers to create the waterproofing system. The starting layer, intermediate layer and cap sheet work together, with correctly formed laps and details at edges, upstands and outlets. Torch-on products are common within felt roofing, although the appropriate fixing and bonding approach depends on the specified system and the surrounding construction. The number of layers alone does not establish whether a roof has been properly designed or installed. Landmark is a family-run business with a four-person team. Customers praise Robbie’s explanations and willingness to explore options, alongside daily updates and tidy working areas. One customer described repeated leaks in different places on an old flat roof before choosing to renew the whole roof. That illustrates why investigating the extent of deterioration matters before committing to another patch. New flat roof installations come with a 10-year warranty. A qualifying repair has a five-year warranty, with eligibility and terms to be confirmed with Robbie; the two should not be confused. To discuss a felt roof, call 07832 878937. The phone is always answered 24/7, including emergency enquiries. Ask Robbie about quote arrangements; price depends on roof size, condition and the proposed work. ### Check your town Sussex Roofers in Crawley, Roofers in East Grinstead, Roofers in Horsham, Roofers in Haywards Heath, Roofers in Burgess Hill, Roofers in Brighton, Roofers in Worthing, Roofers in Shoreham, Roofers in Hove, Roofers in Peacehaven, Roofers in Seaford, Roofers in Eastbourne Surrey Roofers in Redhill, Roofers in Reigate, Roofers in Horley, Roofers in Oxted, Roofers in Caterham Kent Roofers in Tunbridge Wells, Roofers in Tonbridge, Roofers in Sevenoaks, Roofers in Maidstone, Roofers in Edenbridge Check roofing availability by town →Contact Robbie to confirm availability at your property. Why it can’t wait ## Problems worth investigating before another patch A ceiling stain may be some distance from the leak. Checking the deck and drainage helps establish whether the roof needs a repair or renewal. ### Leaks that return in different places Leaks in several places can mean the covering is wearing out. An inspection helps distinguish that from a local defect which can be repaired. ### Persistent standing water Water remaining after the roof has had a reasonable opportunity to drain can point to inadequate falls, deck deflection or obstructed outlets. A new waterproof layer alone will not correct the underlying roof geometry. The drainage route needs assessing before specifying a replacement covering. ### Soft decking or a sagging surface Movement beneath the covering may indicate moisture-damaged boards or another supporting defect. Avoid walking onto a suspect roof to investigate. The affected area needs safe assessment, and the replacement specification should explain whether deck repairs or further structural investigation are required. ### Deteriorating edges and junctions Water can enter around wall abutments, rooflights, perimeter trims and outlets even when the central covering looks sound. Splits, loose terminations and poorly formed corners need attention. A successful repair or replacement deals with these junctions rather than treating the roof as one uninterrupted sheet. ### Dampness with an uncertain cause Not all moisture beneath a flat roof comes from rain penetration. Condensation can develop where insulation, ventilation or vapour control is unsuitable. Distinguishing between these causes matters because replacing the outer covering without addressing the roof build-up may leave the original problem unresolved. ### Common mistakes we see - Covering wet or unsound deck boards without establishing the extent of damage: trapped moisture and weak support can undermine the new installation. - Choosing a covering on appearance alone: roof shape, drainage, movement, access and the intended use should influence the specification. - Ignoring outlet levels and perimeter details: even a well-installed main covering depends on properly formed edges, upstands and drainage connections. - Treating a warranty as a maintenance plan: outlets still need appropriate checks, and accidental damage or developing defects should be investigated promptly. Our process ## How the job runs, step by step - 01 ### Examine the existing felt and roof build-up Review leaks, previous patches, surface condition and drainage. Establish whether deterioration appears localised or whether renewal should be considered, with attention to the deck and any signs of moisture beneath the covering. - 02 ### Specify the three-layer system Explain the proposed layers, attachment approach, cap finish and junction work. Identify the deck, insulation or drainage changes included in the agreed scope so the scope extends beyond simply adding new felt. - 03 ### Prepare the deck and working conditions Remove the existing covering where required, assess exposed boards and complete agreed preparation. Consider hot-work risks and the suitability of the application method around vulnerable construction before installing the felt layers. - 04 ### Form the layered waterproof covering Install the specified layers with the required bonding and lap arrangement. Detail the mineral cap, upstands, perimeters and outlets as a continuous system, rather than leaving critical junctions as separate finishing tasks. - 05 ### Check details and explain aftercare Review the roof surface, junctions and drainage route. Discuss safe maintenance, the 10-year flat roof installation warranty and why later alterations or damage should be assessed rather than covered with an unsuitable patch. What you get ## The benefits of doing it properly ### A clearer route through the work Agreeing the deck, insulation, drainage and covering requirements before work starts helps reduce avoidable interruptions. It also makes the likely sequence easier to understand. Weather and concealed defects can still affect progress, so speed should never mean covering a problem before it is assessed. ### Safer decisions about access A roof assessment helps identify fragile areas, perimeter hazards and the access arrangements needed for the work. This keeps attention on safe working methods rather than encouraging homeowners to inspect suspect surfaces themselves. Landmark Roofing Solutions holds full public liability and employers’ liability insurance. ### Better foundations for longevity A suitable covering needs sound support and well-designed details to perform over time. Addressing damaged decking, moisture and drainage alongside the waterproof layer gives the installation a stronger starting point than simply concealing visible deterioration beneath another surface. ### Fewer avoidable repeat costs Repair sound roofs where possible. Where the covering has failed widely, discuss renewal rather than paying repeatedly for patches. ### More dependable water management Falls, outlets and perimeter junctions work together to direct rain away from the building. Treating them as part of the roofing system supports reliability during wet weather. No covering removes the need to keep drainage clear or respond to damage. ### Reassurance through explanation Robbie Giles runs a family business with a four-person team. Customers praise detailed explanations, options explored, daily updates and tidy sites. A 10-year warranty applies to flat roof installations, while qualifying repairs have a five-year warranty with eligibility and terms to be confirmed with Robbie. In detail ## What belongs in a properly considered specification? The visible surface is only one part of a flat roof. Comparing proposals is easier when you understand how the materials, installation method, thermal design and building use fit together. These are the practical details to discuss with Robbie before agreeing the scope. ### The underlay, intermediate layer and cap sheet The exact products and attachment methods should be chosen as a compatible roofing system. Depending on that specification, an initial layer provides the starting waterproofing layer over the prepared substrate, with a further underlay or base layer adding to the built-up construction. Laps need suitable positioning and bonding. Layer names can vary between specifications, so the useful question is what each proposed layer does and how the complete assembly is installed. The cap sheet forms the exposed weathering surface. A mineral finish is commonly used to protect the bituminous surface from sunlight and weathering, while providing the familiar granular appearance. The cap must still be correctly detailed at corners, changes of direction and drainage points. It should not be treated as a decorative finish capable of compensating for poor preparation beneath it. Sound decking and appropriate detailing remain central to the finished roof. ### Torch-on work and careful junction design Torch-on felt involves heating a suitable bituminous membrane to achieve the required bond. Hot work needs particular care around combustible construction, cavities and concealed materials. Some locations or details may require an alternative application method within the specified system. A considered installation plan addresses those risks before application, rather than assuming that the same technique belongs at every point on a roof. Upstands, wall abutments and perimeter edges require purpose-made detailing within the felt build-up. Layer transitions should maintain continuity without creating an unintended barrier to drainage. Outlets need integration with the surrounding membrane, and any rooflight kerbs need suitable height and weatherproof connections. These areas often demand more thought than the open field of the roof, especially on dormers or extensions with several changes in level. ### Decking, insulation and condensation control Deck boards provide the working base for the waterproofing. Roofing-grade OSB or plywood may be appropriate, but board choice, thickness, support and fixing depend on the particular construction and covering requirements. A deck that looks reasonable from above may still contain local deterioration around old leaks. Where opening up reveals damage, the affected area needs assessing before deciding what can remain. New waterproofing should not be used to hide a weak, wet or inadequately supported substrate. A warm roof generally places insulation above the structural deck, while a cold roof places insulation below it and relies on suitable ventilation arrangements. Neither approach should be selected from a simple label alone. Vapour control, moisture movement, available height and junctions with the existing building all matter. If insulation is being changed, the roof build-up and any applicable building regulations requirements should be considered together, rather than assuming that extra insulation automatically prevents condensation. ### Extensions, garages, dormers and commercial roofs An extension roof over a heated room needs particular attention to thermal performance, internal moisture and rooflight junctions. An unheated garage presents different conditions, but still needs sound decking and reliable drainage. Dormers can have restricted working space and complicated connections to pitched roofing. Garden rooms may introduce several exposed edges and prominent trims. These differences affect the detailing, so a familiar material should not lead to an identical specification for every building. Commercial units may have larger roof areas, more penetrations or access requirements that need discussing before work is planned. Keeping entrances, deliveries and occupied spaces in mind can help establish a workable sequence. A standard waterproof covering is not automatically a walking surface, terrace or base for plant. Where regular access, equipment or a change of use is proposed, the roof structure, protective arrangements and waterproofing details need separate consideration. ### Related services - Flat Roofing - Flat Roof Repairs - EPDM Rubber Roofing - GRP Fibreglass Roofing ### Need it looked at? 07832 878937Phone answered 24/7. FAQs ## 3-Layer Felt Flat Roofing: your questions answered ### How much does 3-layer felt flat roofing cost? The price depends on the roof size, its condition and the system specified. Access, damaged decking, insulation changes, outlets and complicated junctions can also affect the scope. Ask Robbie how assessment and quoting will be arranged for your roof. ### How long will the installation take? The programme depends on the roof area, access, strip-off requirements, deck condition and weather. A straightforward garage and a roof with several rooflights will not necessarily take the same time. Discuss the expected sequence with Robbie after inspection, including how unsuitable weather or hidden damage could affect the work. ### Does the existing roof always need stripping off? Not every roof has the same requirements. The condition of the existing covering, trapped moisture, deck stability and compatibility with the proposed system all need checking. An overlay should not be assumed suitable simply because it avoids removal. Where strip-off is needed, it allows the underlying construction to be examined more directly. ### Why does Landmark specialise in three-layer felt? Three-layer felt is the company’s stated flat roofing specialism, and Robbie prefers felt roofs. A built-up felt system offers a layered approach with details formed around the roof layout. That preference does not remove the need to assess the deck, drainage and suitability of the specification for your property. ### What warranty comes with the work? Landmark Roofing Solutions provides a 10-year warranty on flat roof installations. Qualifying repairs have a five-year warranty, with eligibility and terms to be confirmed with Robbie. Ask Robbie to explain the warranty applicable to the quoted work, including its scope, rather than assuming that a small repair receives installation cover. ### How long should a flat roof last? Service life depends on the material, installation quality, exposure, drainage, maintenance and the condition of the supporting roof. There is no single reliable lifespan for every flat roof. The 10-year installation warranty is not a prediction of the roof’s total life, and visible deterioration should be assessed on its own merits. ### Can I call about an emergency leak at night? Yes. Call 07832 878937: the phone is always answered 24/7, and emergency call-outs are available. Explain what you can see from a safe position. Attendance arrangements depend on the circumstances; immediate access or a permanent repair cannot be assumed in unsafe weather. Do not climb onto a leaking or damaged roof. ### Which local areas do you cover? Call Robbie on 07832 878937 with your town or postcode to confirm availability at your property. The town list on this website is for enquiries, not confirmed coverage. ### How should I look after the completed roof? Keep drainage routes clear and arrange safe checks for debris, damaged trims and changes around rooflights or wall junctions. Avoid unnecessary foot traffic and do not use a ladder or walk onto the roof without suitable precautions. Ask about care appropriate to the installed covering, particularly before adding equipment or carrying out other building work. ### Can you explain repair and replacement options? Yes. Customers specifically praise Robbie for explaining the work and exploring alternatives. A local defect may justify a targeted repair, while widespread deterioration can make renewal more sensible. The recommendation should relate to the inspection findings, not just the age of the roof or a preference for one material. Next step ## Discuss your 3-layer felt flat roofing with Robbie Call Landmark Roofing Solutions on 07832 878937 to explain the roof, the property location and any current leaks. Ask Robbie about availability and how a quote can be arranged. The phone is always answered 24/7, including for emergency roofing enquiries. 07832 878937 - 10-year warranty on flat roof installations - Fully insured · Family-run Roof emergency? ## We answer 24/7. Day or night. 07832 878937 Call Robbie NowRequest a Quote Family-run roofers led by Robbie Giles. Contact us to confirm availability at your property. Honest advice, professional workmanship and warranties up to 25 years. - ### Useful Links About - All Roofing Services - Roofing Service Areas - Our Work - Reviews - Contact - Privacy Policy - Cookie Policy - Terms & Conditions - Cookie settings ### Services - New Pitched Roofs - Complete Re-Roofs - Slate Roofing - Tiled Roofing - Flat Roofing - 3-Layer Felt Flat Roofing - EPDM Rubber Roofing - GRP Fibreglass Roofing ### Contact - Owner: Robbie Giles - 07832 878937 - landmarkroofingsloutions@gmail.com - 24/7 emergency cover: phone always answered © 2026 Landmark Roofing Solutions. All rights reserved. Call 24/7Get a Quote