EPDM FLAT ROOF REPLACEMENTS & SKYLIGHTS
Roofer London EPDM Rubber System
Replacing a blistering felt or cracked GRP flat roof with a vulcanised EPDM rubber system permanently resolves ponding water leaks while upgrading the thermal performance of your property.
SEAMLESS ONE-PIECE QUALITY
For London kitchen extensions, side returns, box dormers, and garages, we install 1.14mm and 1.52mm EPDM membranes cut to cover the entire roof deck in a single piece without vulnerable field joints.
TIMBER DECK & LANTERN PREPARATION
Before bonding any membrane, our roof carpenters strip the perished covering to inspect the exposed C24 joists. We install tapered timber firring strips to form a positive 1:40 drainage fall, lay 18mm WBP marine plywood or OSB3 decking, and build 150mm insulated timber upstand kerbs for glass roof lanterns and skylights.
Benefits of EPDM Rubber Roofing
EPDM Flat Roofer London
ZERO-FLAME INSTALLATION SAFETY
Unlike traditional torch-on bitumen that brings naked gas flames close to dry Victorian and Edwardian roof timbers, EPDM is bonded using cold-applied contact and water-based deck adhesives. Once cured, the synthetic rubber membrane achieves full BROOF(t4) fire certification in accordance with BS 476 Part 3 and EN 1187.
FLEECE-BACKED DURABILITY
On expansive crown roofs, apartment blocks, and multi-penetration commercial decks, we install fleece-backed EPDM laminated with a tough woven polyester underside. Embedded into high-strength polyurethane adhesive, it provides exceptional puncture resistance, UV stability, and permanent elasticity from -40°C to +120°C.
Accredited EPDM Roofing Contractor
EPDM Rubber Roofer London
ELASTOMERIC FLEXIBILITY & DETAILING
Ninety per cent of flat roof leaks begin at poorly flashed upstands, soil pipes, and parapet walls. We dress uncured, heat-formable EPDM flashing tapes around internal and external corners, pipe penetrations, and skylight kerbs, finishing masonry junctions with pre-formed aluminium edge trims or stepped Code 5 lead counter-flashings.
WARM ROOF INSULATION & 10-YEAR GUARANTEES
We install EPDM over a continuous foil-faced vapour control layer and 130mm to 150mm of rigid PIR thermal insulation boards to comply with Part L Building Regulations. Every complete EPDM installation is carried out by our directly employed operatives and backed by a 10-year insurance-backed workmanship guarantee alongside a 20-year manufacturer membrane warranty.
IDEAL FOR ROOF TERRACES & EXTENSIONS
EPDM Flat Roofer London
Heavy-duty EPDM rubber forms an impenetrable waterproof substrate beneath floating London roof terraces and balconies. After constructing a high-compressive warm roof deck and testing all rainwater outlets and door thresholds, we lay protective rubber crumb pads beneath adjustable support pedestals to carry Millboard composite decking or 20mm outdoor porcelain paving slabs. This keeps the walking surface completely separate from the waterproof membrane below, allowing free rainwater drainage and straightforward access for future maintenance.
Call our Kensington office today for a free, no-obligation London EPDM flat roof survey: 020 7205 4557
Frequently Asked Questions: EPDM Flat Roofer London
How long does an EPDM rubber flat roof last compared to felt or GRP?
Standard mineral felt typically blisters and splits within 10 to 15 years under UV exposure, while rigid GRP fibreglass resin can crack as period timber joists expand and contract. A professionally installed EPDM rubber membrane remains permanently flexible across all seasons and delivers an expected service life of 40 to 50 years.
Can you lay EPDM over an existing felt or asphalt roof?
While overlaying is technically possible on dry decks, trapping old, damp felt or rotten timber beneath a new membrane leads to hidden structural decay and condensation. We strip failed coverings back to the joists so we can check the timbers, correct the drainage falls, and install modern warm roof insulation.
Our EPDM & Flat Roofing Work Across London
Specialist Flat Roofing Installers in London
Sika Sarnafil Flat Roofing
Sarnafil is a flat-roofing provider that makes market-leading single-ply roofing membranes. All Sarnafil installations are covered by our 10-year workmanship guarantee, as well as Sarnafil’s own, which ranges from 10 to 25 years dependent on thickness.
Specialist Flat Roofing Installers in London
EPDM Flat Rubber Roofing
Vulcanised one-piece and fleece-backed EPDM rubber membranes provide flame-free, permanent waterproofing with a 40-to-50-year service life across London extensions, dormers, and roof terraces, backed by our 10-year workmanship guarantee.
Specialist Flat Roofing Installers in London
IKO Polymeric Flat Roofing
IKO offer a variety of rubber membranes for flat roofs aimed at providing exceptional waterproofing, UV protection and durability while remaining affordable over a highly durable life span. All of this culminates in a finish that is both effective and aesthetically pleasing.
Specialist Flat Roofing Installers in London
Sika Liquid Plastics Flat Roofing
The Sika Liquid Plastic guarantee offers up to a 25 year guarantee on works using Sika products, which is further backed by the fact a Sika Surveyor will come out to each work and assess that it reaches their quality assurance standards, offering you peace of mind. Increased even further by our 10 year workmanship guarantee.
Specialist Flat Roofing Installers in London
Garland Flat Felt Roofing
Working closely with Garland UK, we can offer Industry-Leading Single-Point Guarantees, removing any doubt or concern and accepting full liability for the design, material, and quality of the installation workmanship on every Garland UK project carried out by our team.
Specialist Flat Roofing Installers in London
Sikabit Pro Flat Roofing
Sikabit is a a Pro Bituminous Membrane designed to have market leading waterproofing, durability and UV protection over its long enduring life span, as well as boasting exceptional fireproofing both during and after application.
