Breathe-R Insulating Membrane is a new product available at MultiFoil Insulation. Most UK homes lose 25% of heat through the roof, It’s essential to insulate your roof so why not insulate whilst installing your breathable membrane?

Standard breather membranes have next to no effect on preventing heat transfer. Current building standards say that roofing rafters need to be covered with a breathable membrane. A breathable membrane helps prevent leaks and allows moisture and dampness to pass through from inside to outside. This is why Breathe-R has been created to combine the benefits of a breathable membrane also the added benefit of thermal insulation. You can buy Breathe-R here at MultiFoil Insulation.

Breathe-R is a 2-in-1 membrane designed for pitched roofs. It’s just as easy to install as a standard membrane. It’s made from two layers it’s also just 2mm thick. The outer layer is a high-performing long lasting roofing membrane. The inner layer is a highly reflective insulation-grade aluminium foil that’s fully perforated to allow moisture to escape outside.

Step-by-step installation…

First of all, start at the bottom of the roof by rolling across the Rafters, Install the next layer by overlapping it by 100mm.

Staple at regular 300mm intervals, a minimum of 10mm stainless steel or galvanized staples are recommended. We also sell a Heavy Duty Staple Gun Kit which includes 5,000 14mm staples.

Breathe-R can be cut using a craft knife or you can also use a sharp pair of multifoil insulation scissors.

When you reach the end of the roll, cut the product so that it finishes in the middle of the last rafter & staple. Begin the next roll from this rafter, by butt-jointing it to the end of the first roll and staple it in place. Using our Weather Proof Tape, tape over the joint and ensure it is fully sealed.

Fold the second rollback (100mm), remove the easy peel backing from the double-sided tape, and secure it in place by applying pressure.

Carry on with the rest of the roof in the same way until the project is complete.


What are the benefits of Breathe-R?

  • R-Value of 0.450 m²K/W, equivalent to 20 mm of Mineral Wool Insulation.
  • Built-in double-sided tape for simple installation.
  • Eliminates Condensation – Fully breathable.
  • Equivalent to 10mm PIR Insulation.
  • Suitable for all UK wind zones.
  • Excellent tensile and tear resistance strength.
  • CE Marked to BS EN 13859-1: 2014
  • Effectively reflects heat into the room, whilst allowing moisture to pass through
  • Suitable for all zones 1-5 in the UK
  • Zero fibres remove the need for PPE


Due to Breathe-R’s unique makeup, it reflects radiant heat into your property making it more thermally efficient, especially during the winter. It’s also water resistant (W1 certified), air-tight, and allows natural moisture to escape all year round.

Orders placed before 2 pm are dispatched the same day for delivery the next working day to anywhere within the UK Mainland. (FREE delivery on orders over £100 + VAT)

If you are looking for a breathable roofing membrane with higher thermal properties check out YBS BreatherQuilt.