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YBS BreatherFoil FR for Timber Frames

YBS BreatherFoil FR for Timber Frames

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expand_circle_down Description

Venting and Insulation Made Easy

YBS BreatherFoil is a 2-in-1 Breathable and Venting Membrane. It has been designed and certified to replace a traditional breather membrane. It also has been proven to greatly improve the U-value, due to its reflective outer foil layer.

BreatherFoil FR creates a wind and draught-free seal – this helps protect the walls and the timber frame’s structure whilst it is in construction.

You can either; Staple BreatherFoil FR directly onto the plywood timber boards – which allows the reflective foil to face the external of the property.

Or, you can install BreatherFoil FR in a factory scenario.

We advise when installing BreatherFoil FR on the walls, to overlap it by 75mm. Leave the horizontal overlaps untapped – this allows moisture to dissipate.

The external timber frame can be installed with the external finish of your choice, whether that be Blockwork, Cladding, or Brick.

Why not have a look at our U-Value Calculator – if you are going through building regulations for your project?

Or, see our new Timber Frame Kit – to see how you can combine BreatherFoil FR and SuperQuilt – to achieve your required U Values.

How Does BreatherFoil FR Compare?

BreatherFoil FR is becoming increasingly popular in the Timber Frame market, it is a higher-performing material than the following brands;

  • Reflex by Tyvek
  • TF200 Thermo by Protect
  • Reflactasheid TF 0.18 by Proctor

BreatherFoil FR Trade Pallet Deal

If you are in the trade, it is most cost-effective to order pallets. Included in the YBS BreatherFoil FR for Timber Frames Trade Pallet;

  • 6 x BreatherFoil FR 1.35m x 50m
  • 3 x Thermaseal Foil Joining Tape
  • 1 x Free Heavy Duty Staple Gun & Staples
  • Next Working Day to the UK Mainland

Why not visit our Timber Frame technical data sheet for more information on YBS BreatherFoil FR for Timber Frames as well as YBS SuperQuilt Multifoil?

Order online at the lowest Online Prices before 2 pm and receive delivery the Next Working Day to the UK Mainland.

If you are looking for a breathable multifoil for pitched roofs, please head over to our BreatherQuilt Multifoil product page.


Spend £500 + VAT and Choose a FREE GIFT at the checkout!

Free Gifts Include Thermaseal Foil Joining Tape, Heavy Duty Staple Gun Kit, Multifoil Insulation Scissors, or Thermaseal Double-Sided Tape.

expand_circle_down How-To Videos

How to Install BreatherFoil FR Insulation

expand_circle_down How-To Guides

How To Install YBS BreatherFoil

  1. Preparing the Building

    Prepare the BreatherFoil by removing any exisiting Cladding on the external of the walls, exposing the OSB / Sarking Board.

  2. Stapling the BreatherFoil

    Staple the BreatherFoil directly to the external timber boarding, at a minimum of 300mm intervals.

  3. Vertical Joints

    Vertical Joints; ensure a minimum overlap of 100mm & seal using ThermaSeal Foil Joining Tape.

  4. Horizontal Joints

    Horizontal Joints; ensure a minimum overlap of 75mm, leaving the overlaps untaped.

  5. Stapling the Second Layer of BreatherFoil

    Staple the BreatherFoil directly to the external timber boarding, at a minimum of 300mm intervals.

  6. Sealing the Perimeter

    Seal the vertical perimeter using ThermaSeal Foil Tape, leaving the top and bottom untaped.

  7. Installing Battens

    Apply a layer of timber battens (minimum of 25mm), perpendicular to the rafters at minimum intervals of 400mm.

  8. Installing External Cladding

    Finally apply the external finish in accordance with the manufacturers certification, fixing instructions & good building practice.

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expand_circle_down Specification
Length25m or 50m
Foil Emissivity0.05
Core R-value0.124m²K/W
Wall R-value0.79m²K/W
expand_circle_down Data Sheets

How To Video

Key Features

  • Highly Reflective True Aluminium Outer Layer
  • Removes potential risk of condensation
  • Removes requirement for PIR
  • YBS BreatherFoil FR Can be used in conjunction with YBS SuperQuilt
  • Breathable and Insulating Bubble Membrane
  • UK Manufactured
  • Non degradable, maintaining thermal performance and product integrity
  • Greatly improve U-value without any additional depth
  • BDA and STAS Approved
  • Fire Retardant Logo