Description
Professional EPDM Dormer Roofing System
The complete waterproofing solution engineered for lasting protection and trusted by roofing professionals across the United Kingdom
50+ Year Lifespan
Premium 1.2mm EPDM membrane engineered for exceptional durability and long-term waterproofing performance in all UK weather conditions
300% Elongation
Superior flexibility accommodates structural movement and thermal expansion without cracking or compromising waterproof integrity
Complete System
Everything included for professional installation—membrane, adhesives, primers, trims, and accessories—no additional materials required
The Gold Standard in Dormer Waterproofing
When it comes to protecting your dormer, porch, or extension from the elements, compromise is not an option. Our professional-grade EPDM roofing system represents decades of engineering excellence, delivering unmatched waterproofing performance that stands the test of time and the harshest British weather.
Trusted by roofing contractors and discerning homeowners throughout the UK, this complete system combines premium materials with intelligent design to create a seamless, maintenance-free roofing solution that performs flawlessly for over 50 years.
Whether you are a professional roofer seeking reliable materials or a homeowner undertaking a quality DIY project, this comprehensive kit provides everything needed to achieve a watertight, professional-grade installation that will protect your property investment for decades.
Complete Professional Installation System
Premium EPDM Membrane
Professional-grade 1.2mm black rubber membrane with advanced UV stabilisation and superior weather resistance for long-lasting waterproof protection
Contact Adhesive
Professional-grade bonding solution formulated for permanent, weather-tight seals and exceptional adhesion in all conditions
Deck Primer
Ensures optimal adhesion to substrate surfaces for long-lasting performance and maximum bond strength
Edge Trim Strips
Professional finishing components for clean, watertight perimeter detailing and aesthetically pleasing edges
Seam Tape
Creates seamless, invisible joins for multi-piece installations ensuring complete waterproof integrity across the entire roof surface
Cleaning Solution
Prepares surfaces for optimal adhesion and long-term bond integrity by removing contaminants and ensuring clean application
Engineered for Excellence
Superior Material Science
Our EPDM membrane is manufactured to the highest industry standards, featuring advanced polymer technology that delivers exceptional resistance to UV radiation, ozone degradation, and extreme temperature fluctuations ranging from -45°C to +120°C.
The impressive 300% elongation factor means the membrane stretches and recovers without compromising structural integrity, accommodating building movement and thermal expansion that would cause traditional roofing materials to crack, split, or fail prematurely.
Weather-Proof Performance
Designed specifically for the demanding UK climate, this system provides absolute protection against driving rain, standing water, snow accumulation, and freeze-thaw cycles that destroy lesser roofing materials.
The seamless, monolithic membrane creates an impenetrable waterproof barrier with no weak points, joints, or seams that could allow water ingress, ensuring your property remains completely dry regardless of weather conditions or seasonal changes.
Installation Versatility
Unlike traditional roofing systems that require perfect weather conditions, EPDM can be installed in temperatures as low as -10°C, providing year-round installation flexibility that other systems simply cannot match.
This versatility means your roofing project does not need to wait for ideal weather windows, reducing project delays and allowing you to complete essential waterproofing work when it suits your schedule.
Perfect For Multiple Applications
Dormers
Ideal for all dormer window configurations and sizes, providing reliable waterproof protection for these vulnerable roof structures
Porches
Perfect for entrance porches and covered walkways requiring durable, long-lasting flat roof waterproofing solutions
Extensions
Excellent for small to medium flat roof extensions, delivering professional-grade waterproofing for new construction
Bay Windows
Reliable protection for bay window roof structures, ensuring watertight performance in these architecturally complex areas
Why Professionals Choose EPDM
Proven Longevity
With a service life exceeding 50 years, EPDM outlasts traditional felt, fibreglass, and torch-on systems by decades, making it the most cost-effective long-term waterproofing solution available.
Maintenance-Free
Once installed, EPDM requires virtually no maintenance. No painting, no re-coating, no repairs—just decades of reliable, worry-free waterproof performance that saves you time and money.
Environmentally Responsible
EPDM is fully recyclable and contains no harmful plasticisers or volatile organic compounds, making it the sustainable choice for environmentally conscious roofing projects.
Professional Installation
Our complete kit includes everything needed for a professional finish. Comprehensive instructions ensure even capable DIY enthusiasts can achieve contractor-quality results.
All-Weather Flexibility
Can be installed in temperatures as low as -10°C, providing year-round installation flexibility that other roofing systems cannot match, reducing project delays.
Superior Value
When you factor in the 50+ year lifespan and zero maintenance costs, EPDM delivers unmatched value compared to systems requiring regular replacement and ongoing maintenance.
Complete Technical Specifications
Membrane Thickness
1.2mm Premium Grade
Elongation at Break
300% Minimum
Temperature Range
-45°C to +120°C
Service Life
50+ Years
UV Resistance
Fully Stabilised
Colour
Professional Black
Material Type
EPDM Rubber
Installation Temperature
-10°C Minimum
Ozone Resistance
Excellent
Professional Results, Guaranteed
Every kit includes comprehensive installation instructions developed by experienced roofing professionals. Whether you are a seasoned contractor or a capable DIY enthusiast, you will have everything needed to achieve a flawless, watertight installation that will protect your property for decades to come.
Delivery and Expert Support
Fast UK Delivery
Free delivery throughout the United Kingdom. Your complete kit arrives carefully packaged and ready for immediate installation.
Technical Support
Our roofing specialists are available to answer questions and provide expert guidance throughout your installation process.
Quality Assurance
Every component is quality-tested to ensure you receive materials that meet our exacting professional standards.
Invest in Permanent Protection
Do not compromise on quality when it comes to protecting your property. Choose the roofing system that professionals trust and homeowners rely on for lifetime waterproof performance.
Available in multiple sizes to suit your specific project requirements
Related Products & Guides:
Frequently Asked Questions
Expert answers about the Professional EPDM Dormer Roof Kit
What's included in the dormer roof kit?
You'll receive the EPDM rubber membrane cut to fit your dormer roof, along with contact adhesive, deck primer, edge trim strips, seam tape, and cleaning solution, giving you a complete, watertight system in a single order.
Is a dormer roof more difficult to fit than a shed or garage roof?
Dormer roofs can involve more junctions and detailing where the roof meets the main house, so while confident DIYers can fit this kit, extra care is needed around abutments and flashings. Full instructions are included, and support is available for advice on tricky areas before you start.
How do I measure my dormer roof for the correct kit size?
Measure the full length and width of the roof deck, including any upstands against walls or windows, and add an overlap allowance for dressing the membrane into these junctions. Send in your measurements if you'd like help confirming the right kit for your roof.
How long will an EPDM dormer roof last?
EPDM rubber roofing typically lasts 50+ years without recoating. Its seamless, single-layer design removes the most common cause of leaks around dormer junctions and flashings.
Will I need to buy any extra materials to finish the job?
No, everything needed is included: membrane, contact adhesive, primer, edge trims, and seam tape. You'll just need basic tools like a broom, roller, and a sharp knife for trimming.
Does EPDM cope well with junctions where the roof meets the house wall?
Yes, EPDM is highly flexible and can be dressed neatly up walls and around abutments to create a fully bonded, watertight junction, which makes it particularly well suited to dormer roofs where the roof meets the main building.
What is the seam tape used for?
Seam tape creates seamless, invisible joins for multi-piece installations, ensuring complete waterproof integrity across the entire roof surface on larger dormer roofs that require more than one membrane sheet.
Can this kit be installed in cold weather?
Yes, EPDM can be installed in temperatures as low as -10°C, providing year-round installation flexibility that traditional roofing systems cannot match, so your project doesn't need to wait for ideal weather windows.
What temperature range does the finished membrane perform in?
Once installed, the membrane remains flexible and waterproof across a temperature range of -45°C to +120°C, resisting cracking or splitting through seasonal extremes.
Is this kit suitable for professional roofers as well as DIY installers?
Yes, this system is trusted by roofing contractors across the UK as well as capable DIY enthusiasts, with comprehensive instructions supporting a professional-grade finish either way.
How much maintenance does the roof need once installed?
Very little. There's no painting, re-coating, or regular repair work required. Occasional visual inspection around junctions and trims is recommended to keep the roof performing at its best.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.