18MM MARINE PLYWOOD DECKS & IKO WARM ROOFS IN EALING
Across Ealing Broadway (W5), West Ealing (W13), and Pitshanger, spacious Edwardian and Victorian family homes rely on rear kitchen extensions, loft dormers, and side returns to maximise ground-floor and attic living space. When ageing bitumen felt splits or chipboard decking softens through damp ingress, water quickly stains ceilings below. On our recent Ealing project, London Roofing Specialist stripped the failed roof covering back to the joists, laid a rigid 18mm WBP marine plywood substrate, and installed a light grey IKO Armourplan PSG warm roof system.
Parapet Scupper Drainage, Tapered Firrings & Part L Insulation
Flat roofs enclosed by brick parapet walls often suffer from ponding water if the underlying timber firrings have sagged over time. Before laying the vapour barrier and high-density PIR thermal insulation boards, our carpenters re-level the joists to create a positive fall straight into the corner parapet scupper outlets, ensuring rainwater clears rapidly during heavy Ealing downpours.
HEAT-WELDED SINGLE-PLY, LIQUID & EPDM SYSTEMS IN W5 & W13
Every flat roof structure in the London Borough of Ealing presents different foot-traffic, thermal, and architectural demands. Our NFRC-accredited installers fit flame-free, manufacturer-approved membranes that eliminate the fire hazards of traditional torch-on bitumen.
IKO Armourplan PSG & Sika Sarnafil Single-Ply
Polyester-reinforced thermoplastic membranes with hot-air welded seams, offering high UV reflectance and a 35-year+ service life.
Cold-Applied Liquid Waterproofing
Fibre-reinforced polyurethane resins brushed directly over complex plywood upstands, skylight kerbs, and awkward pipe penetrations.
One-Piece EPDM Rubber Membranes
Seamless synthetic rubber sheets cold-bonded to garage roofs, garden studios, and box dormers across W5 and W13.
Skylight & Roof Terrace Conversions
Insulated timber upstand kerbs for architectural glass rooflights alongside heavy-duty membranes engineered to support composite decking.
Extending The Lifespan Of Domestic Roofs
Many budget contractors lay waterproofing membranes over cheap moisture-resistant chipboard, which swells and loses structural strength the moment condensation or a minor leak occurs. By mechanically fixing 18mm cross-laminated marine plywood over C24 timber joists, we create a rock-solid, rot-resistant deck that will not bow underfoot.
LIQUID UPSTAND DETAILING & 10-YEAR INSURED GUARANTEES
As shown in our Ealing project photography, we pair sheet membranes with cold-applied liquid waterproofing over intricate plywood upstands and perimeter junctions where heat-welding tools cannot reach. Every completed flat roof replacement in Ealing is carried out by our own vetted, directly employed technicians and backed by a 10-year insurance-backed guarantee alongside manufacturer material warranties. View our wider London portfolio.
Frequently Asked Questions: Flat Roofers Ealing W5 & W13
Why choose light grey IKO Armourplan PSG for an Ealing extension roof?
Light grey IKO Armourplan PSG reflects solar heat far more effectively than black felt or dark asphalt, keeping ground-floor kitchen extensions and top-floor loft rooms noticeably cooler during summer heatwaves while preventing thermal shock across the membrane.
Do I need to upgrade my flat roof insulation when replacing the waterproof covering?
Yes. Under Part L of the UK Building Regulations, stripping and replacing more than 25% of a flat roof above a heated room requires upgrading the thermal envelope to current U-value standards. Constructing a warm roof with rigid PIR insulation above the 18mm marine plywood deck keeps the structural timbers warm, stops interstitial condensation, and cuts winter heating bills.
