1.2mm EPDM Rubber Roofing Membrane – BBA Certified | Cut to Size | 50+ Year Lifespan

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Description

★ 1.2MM EPDM RUBBER ROOFING MEMBRANE - CUT TO YOUR EXACT SIZE

BBA Certified No. 19/5670 | 50+ Year Proven Lifespan | One-Piece Up To 6.10m Wide | Same-Day Dispatch

The professional-grade EPDM membrane chosen by UK roofers for sheds, garden rooms, extensions, garages, porches and outbuildings - sold per linear metre, cut to your exact dimensions.

HOW TO ORDER IN 3 STEPS

  1. Choose Your Width from the dropdown - 20 standard widths from 0.53m up to 15.24m
  2. Enter Your Length in the Quantity box - each unit = 1 linear metre (qty 4 = 4 metres)
  3. Add 150mm to every edge for overlap and trim fixing (a 3m x 4m roof needs a 3.3m x 4.3m membrane)

Not sure what size you need? Call our UK roofing experts - we will calculate your exact size in under 5 minutes.

WHY 1.2MM IS THE RIGHT CHOICE

The 1.2mm thickness is the UK most installed EPDM specification for domestic flat roofs. It delivers the proven sweet spot of durability, flexibility and value - significantly more robust than budget 0.9mm and 1.1mm alternatives. Every roll is BBA certified to No. 19/5670 and manufactured to the same exacting standard trusted by professional roofers nationwide.

For foot-traffic areas or commercial roofs, see our 1.5mm Heavy-Duty EPDM. For all other domestic applications - sheds, garden rooms, extensions, garages, porches and outbuildings - 1.2mm is the specification recommended by UK roofing contractors.

KEY BENEFITS AT A GLANCE

Feature Why It Matters
50+ Year Proven Lifespan Outlasts roofing felt by 5x - install once and forget
BBA Certified No. 19/5670 Independently tested to UK Building Regulations - certification available on request
One-Piece Up To 6.10m Wide No on-site seams - eliminates the number 1 cause of flat roof failure
Cut to Your Exact Size Zero waste - 20 widths and any length, pay only for what you need
Same-Day Dispatch Order before 2pm Mon-Fri - on site in 1-3 working days
UV and Ozone Resistant Will not crack or degrade - rated from -40C to +120C
No Moss or Algae Growth Self-draining smooth surface requires zero chemical treatment
DIY Friendly Lightweight, flexible, cold-applied - most installs completed in one day
Fully Recyclable Environmentally responsible - no toxic runoff unlike bitumen felt

TECHNICAL SPECIFICATIONS

Thickness 1.2mm (plus or minus 0.1mm tolerance)
Material EPDM (Ethylene Propylene Diene Monomer) - 045 Grade
Colour Slate grey - black (matt finish, untalced)
Max Single-Piece Width 6.10m (no site seams up to this width)
Available Widths 0.53m to 15.24m across 20 standard widths
Max Roll Length 30.5m per roll (sold per linear metre)
Tensile Strength 9 MPa minimum (ASTM D412)
Elongation at Break 300% minimum (ASTM D412)
Temperature Range -40C to +120C service temperature
Fire Classification Class E (EN 13501-1) - CE Marked
BBA Certificate No. 19/5670 - Service life in excess of 50 years

WHY RUBBER ROOF UK BEATS THE COMPETITION

Feature Rubber Roof UK Top Competitors
Certified lifespan 50+ years (BBA No. 19/5670) 35 years (Roofgiant, UKFR)
Widths available 20 widths up to 15.24m Typically max 6.1m wide
Dispatch speed Same-day before 2pm Next day or longer
Complete system Yes - adhesives, trims and tools Membrane only
UK phone support Free consultation Email only or none

4-STEP INSTALLATION OVERVIEW

  1. Prepare the deck: Clean, dry, smooth and free from sharp protrusions
  2. Position the membrane: Roll out and allow 30 minutes to relax before bonding
  3. Bond with adhesive: Water-based deck adhesive to field area; contact adhesive at perimeters
  4. Trim and finish: Install edge trims, dress upstands, seal penetrations with lap sealant

Frequently Asked Questions

EPDM rubber roofing membranes, kits and accessories - straight answers from the Rubber Roof UK team.

Should I choose 1.2mm or 1.5mm EPDM?

For around 95% of domestic projects - sheds, garden rooms, extensions, garages and porches - 1.2mm is the correct, professionally recommended specification. Choose 1.5mm only where the roof will see regular foot traffic or is a commercial application needing extra puncture resistance.

How long does 1.2mm EPDM roofing last?

It carries a BBA-certified service life in excess of 50 years, roughly five times longer than traditional roofing felt.

Is 1.2mm EPDM independently certified?

Yes, it holds BBA Certificate No. 19/5670, meaning it has been independently tested and approved to UK Building Regulations, with certification available on request.

What widths and lengths are available?

It's available in 20 standard widths from 0.53m up to 15.24m, in single pieces up to 6.10m wide with no on-site seams, and up to 30.5m long, sold per linear metre and cut to your exact size.

How much extra membrane should I add for overlaps?

Add a minimum of 150mm to every edge of your roof measurement. For example, a 3m x 4m roof needs a 3.3m x 4.3m membrane.

What is the membrane made from and what colour is it?

It's 045 grade EPDM rubber (Ethylene Propylene Diene Monomer) in a slate grey-black matt, untalced finish, with a tensile strength of at least 9 MPa and elongation at break of 300% minimum (ASTM D412).

Can a DIYer install this membrane?

Yes. It uses cold-applied adhesives with no hot works or specialist tools required, and most domestic installs are completed in a single day.

What accessories will I need alongside the membrane?

You'll need water-based deck adhesive for the field area, contact adhesive for the perimeter, edge or drip trims, and lap sealant for penetrations - we stock the complete system.

What temperature range and weather conditions can it withstand?

The membrane performs from -40°C to +120°C and resists UV, ozone, hail and high winds, and won't develop moss or algae thanks to its self-draining smooth surface.

How quickly is my order dispatched?

Orders placed before 2pm Monday to Friday are dispatched same-day, typically arriving within 1-3 working days via tracked courier.

What if I'm not sure what size to order?

Call our UK roofing experts - they can calculate your exact membrane size in under five minutes and help you choose the right accessories.

Is 1.2mm EPDM fire rated and recyclable?

Yes, it's Class E rated to EN 13501-1 and CE marked, and the material is fully recyclable with no toxic runoff, unlike bitumen felt.

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