info@rossiroofing.co.uk Unit 3, Grange Enterprise Park, Errol, Perth PH2 7TB, United Kingdom Mon – Sun: 9 AM – 7 PM 07853 300268 AboutServices Areas Our WorkReviewsContact07853 300268Get Free Estimate All ServicesFully Insured · 25-Yr Guarantee on New Roofs · 4.8★ Rated # Flat Roofing inDundee, Perth & Fife —Watertight for 25+ Years. PVC single-ply flat roofs with hot-air welded seams, installed to manufacturer specification and supplied with full-system manufacturer warranties. Garages, extensions, dormers and commercial — no more annual patch jobs, no more buckets in the loft. Available today•Quick callback•40+ five-star reviews Get My Free Estimate Call 07853 300268 No call-out fee · No obligation · Written quote - £5M Liability - 4.8★ on Google - Free Estimates - Reg. SC832569 Free Estimate · Quick Callback ## Get your free flat roofing quote We aim to respond quickly. No obligation. Your details stay private — we never share or sell data. Recent Work ## Flat Roofing across Tayside & Fife. A snapshot of recent flat roofing projects completed by our team. See all work 400+ Flat roofs installed Manufacturer-backed System warranty 15+ Years on Tayside £5M Public liability Service Overview ## Flat Roofing — what it covers and when it's right. What it is Flat roofing covers any roof with a pitch under 10°. We install PVC single-ply only — a thermoplastic membrane with hot-air welded seams that routinely delivers 25–30 years of trouble-free service when correctly specified and installed. Who it's for Anyone with a garage, extension flat roof, dormer, porch or commercial flat roof at end of life — or anyone planning a new extension and weighing flat vs. pitched options. When you need it When you see pooling water, blisters, splits, internal damp patches, or when the existing covering is over 20 years old. New-build extensions: spec the flat roof properly from day one and you'll never touch it again. Why a professional Flat roofs fail at details — upstands, edge trims, outlets, abutments — not in the middle of the field. DIY and generalist jobs nearly always fail at these points within 3–5 years. Installation by a roofing specialist to manufacturer detail is what unlocks the manufacturer system warranties that make flat roofing economic. What happens if you wait ## The cost of ignoring it always exceeds the cost of fixing it. ### Pooling water Standing water on a failed flat roof finds every micro-crack. Within one winter it's inside the building. ### Internal damage Flat roofs cover the rooms you actually live in — kitchens, extensions, bedrooms. A leak doesn't drip into a loft; it ruins plaster, flooring and electrics. ### Structural deck rot OSB and ply decks rot fast under failed coverings. Replacement triples the cost of a routine recover. ### Warranty void Manufacturer system warranties are void without certified installation. DIY install = no warranty cover, ever. ### Common mistakes we get called to fix Most of these started as someone trying to save a few hundred pounds. - Patching repeatedly when a PVC single-ply recover would last 25+ years for similar lifetime cost - Using mastic at upstands instead of proper bonded trims and welded detailing - Installing in temperatures below manufacturer minimums (a real risk in Scottish winters) - Skipping correct falls so water pools and overloads seams and outlets Our Process ## A five-step system — no surprises. 01 ### Step 1 — Free survey We assess existing deck condition, falls, outlets and abutments. Honest advice on recover vs. strip-and-replace. 02 ### Step 2 — Written quote PVC single-ply specification, fixings method, trims and detailing — itemised in writing. 03 ### Step 3 — Strip and prepare Old covering removed, deck inspected and replaced where rotten, falls corrected where needed. 04 ### Step 4 — System installation Manufacturer-specified PVC single-ply membrane, hot-air welded seams, bonded or mechanically fixed to deck, all trims and outlets to manufacturer detail. 05 ### Step 5 — Inspection & warranty Final inspection, water test, manufacturer system warranty registered in your name. Book your free inspection The Benefits ## What you actually get when you hire Rossi. ### Decades, not years Properly installed PVC single ply routinely delivers 25+ years. The maintenance bill drops to zero. ### Hot-air welded seams Seams are fused, not glued — the membrane becomes one continuous sheet. No adhesive failure points. ### Genuine warranties Manufacturer system warranties — available where the system is installed to manufacturer specification. ### Walkable systems available Where you need access (terraces, balconies) we install protected PVC build-ups that take foot traffic without compromising waterproofing. ### Clean, modern finish Crisp edge trims, neat outlets — looks engineered, not patched. Adds visible quality to extensions and dormers. ### No more patch-job spend One done-right installation replaces a decade of in writing on request annual patches. In Depth ## The materials, methods and variations behind flat roofing. We install PVC single-ply membrane systems exclusively for flat roofing. Hot-air welded seams, manufacturer-detailed trims and a single material on every flat roof we touch — that consistency is why our flat roofs don't fail at detailing. Here's how we specify them. ### Materials we use - PVC single-ply membrane (Sika Sarnafil, Protan and equivalent manufacturer-approved systems) — thermoplastic, hot-air weldable, 25+ year design life - Manufacturer-matched PVC trims, internal/external corners, outlet flanges and pipe collars - Aluminium edge trims and kerb upstands engineered to last as long as the membrane - OSB3 and exterior-grade ply decks where structural replacement is needed - Stainless and approved fasteners for mechanically fixed installations ### Methods we follow - PVC single-ply membrane bonded or mechanically fixed to deck per manufacturer spec - Seams hot-air welded with manufacturer-calibrated welders — fused membrane, not adhesive - Upstands, parapets and abutments dressed in PVC with welded internal corners - Outlets, pipe penetrations and rooflights detailed with manufacturer-matched preformed components - Falls designed to BS 6229 (minimum 1:80) so water drains cleanly to outlets ### Variations of this service Garage flat roofsMost common job — typically 12–25m². PVC single-ply install completed in one day, supplied with the manufacturer's warranty. Extension flat roofsOften integrated with rooflights and abutting house wall. PVC welds cleanly around rooflights and into vertical upstands. Dormer roofsSmall but detail-heavy — abutments to tile, lead apron, vertical cheeks. PVC single ply or hand-dressed lead. Balcony and terrace roofsWalkable PVC build-ups with protection layers or paving on pedestals. Commercial flat roofsLarger areas, fall-arrest required, often phased to keep tenants operational. Mechanically fixed PVC single ply. ### When it applies Typical situations we're called for across Tayside and Fife. - Garage and outbuilding recovers - New build extension specifications - Dormer waterproofing - Commercial unit re-roofs - Listed property porches and bay roofs where lead alternatives are too costly ### Residential vs commercial Residential and commercial flat roofs alike are installed in PVC single ply. Domestic jobs are usually one-day installs with bonded membrane; larger commercial roofs are mechanically fixed for handling and wind-uplift reasons, with CDM 2015 documentation included in the quote. Frequently Asked ## Answers, in plain English. Something not covered? Phone 07853 300268 — answered by a roofer. How much does a flat roof cost in Tayside?Every job is different — call us on 07853 300268 or send a quick message and we'll give you a written, no-obligation quote. What system do you install? How long will a new flat roof last? Can you install in winter? Will you remove the old roof? Can rooflights be added during the recover? How disruptive is the work? What's the warranty? Do you do commercial flat roofs? Related Services ## Often booked alongside flat roofing. - Roof Repairs Fast, made-good repairs that stop leaks and protect your home. - Roof Replacement Full re-roofs built to last decades, written quote and 25-year guarantee (including flat roofs). - Emergency Roofing Same-day emergency response for storm damage, leaks and make-safe call-outs. See all services Areas Covered ## Flat Roofing across Tayside & Fife. Same service, same standards, same care in every town we cover. - Dundee - St Andrews - Perth - Blairgowrie - Pitlochry - Auchterarder - Forfar - Arbroath - Kirkcaldy - Cupar - KinrossNot sure if we cover you? Ask us Next step ## Get a written quote for flat roofing — free, no obligation. Free inspection as soon as we can. Written quote usually the same day as the visit. Phone answered by a roofer — no call centre, no chasing. Get Free Estimate Call 07853 300268 5★ Google reviews Fully insured · SC832569 Free inspection as soon as we can Trusted residential and commercial roofers across Tayside and Fife. Fully insured, written quotes, 25-year guarantee on full re-roofs. 07853 300268 info@rossiroofing.co.ukUnit 3, Grange Enterprise Park, Errol, Perth PH2 7TB, United Kingdom Mon – Sun · 9 AM – 7 PM Services - Roof Repairs - Roof Replacement - Flat Roofing - Pitched Roofing - Guttering - Drainage - Fascias & Soffits - Emergency Roofing Service Areas - Dundee - St Andrews - Perth - Blairgowrie - Pitlochry - Auchterarder - Forfar - Arbroath - Kirkcaldy - Cupar - Kinross Company - About - Our Work - Reviews - Contact - Privacy Policy - Cookie Policy - Terms & Conditions Popular Roofing Searches - Roofers in Dundee - · - Roofers in Perth - · - Roofers St Andrews - · - Emergency roof repairs Tayside - · - Flat roofing Perth & Fife - · - Slate re-roof Scotland - · - Gutter replacement Dundee - · - uPVC fascias Tayside - · - Emergency roofer Perth - · - Roofers Kirkcaldy Fife - · - Roofing case studies Scotland - · - 5-star roofer reviews © 2026 Rossi Roofing Limited. Company No. SC832569. 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