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Actis  |  SKU: TLXG

TLX Gold Insulating Breather Membrane - 1.2m x 10m x 33mm

£169.55 Ex VAT
£203.46 Inc VAT

TLX Gold is an insulating multi-foil breather membrane designed to add further thermal insulation to roofing systems.

Nationwide Delivery in 3-5 WORKING DAYS

  • £50 ex VAT Delivery
  • FREE DELIVERY OVER £500

Need a next-day or named day delivery? Call Us.


TLX Gold is an insulated breather membrane ideal for use on the “cold” side of a roof structure. Made from layers of insulating loft quilt, finished with breather membrane on one side and a gold reflective layer on the inner side (to reflect heat back into the building), TLX Gold offers a more insulating alternative to standard breather membranes, and can usually be used in conjunction with existing roof insulation.

  • Easy to cut to size with less mess
  • Ideal for roof replacements and in conjunction with existing roof insulation
  • Simple installation with basic tools and supplies
  • Space effective roof insulation

What is Multi foil insulation?

Multi-foil insulation is a type of thermal insulation material composed of several layers of reflective foil, often with additional materials such as foam or bubble wrap sandwiched in between. The reflective foil layers work by reflecting radiant heat, preventing it from entering or escaping a building, thus helping to maintain desired temperatures and improve energy efficiency. This type of insulation is popular for its lightweight and flexible nature, making it easy to install in various construction applications, such as roofs, walls, and floors. Multi-foil insulation is known for its high thermal performance and is often chosen for its effectiveness in reducing heat loss or gain in buildings.

What is a Breather Membrane? 

A breather membrane, also known as a vapour-permeable membrane, is a type of building material used in construction primarily for its ability to allow moisture vapour to pass through while preventing liquid water from penetrating into the structure. It is typically installed on the external side of a building's insulation, beneath the external cladding or roofing materials. Breather membranes help to manage moisture within the building envelope, reducing the risk of condensation and mould growth while improving energy efficiency by allowing buildings to "breathe" and maintain a balanced internal environment.

How to install TLX Gold Insulating Breather Membrane

TLX Gold is designed for use on the “cold” (typically exterior) side of a roofing structure. Install the gold side facing down towards the interior of the building, on top of roofing rafters - before battens and final roof finishes such as tiles. Cut to size with sharp scissors or craft knife and apply horizontally in a continuous roll across rafters, beginning at the bottom of the roof. Easily fixed in place with a staple gun Install with an overlap using the built-in adhesive strip, to ensure an airtight finish. Counterbattens and tile battens can then be added on top. 

Data Sheets & Guides:

TLX Gold Multifoil Breather Membrane Data Sheet

TLX Installation Guide

  • Size
    1200mm x 10m
  • Coverage (m²)
    12
  • Thickness
    33mm
  • Length
    10m
  • Width
    1.2m
  • Material
    Layered Foil & Loft Quilt
  • Estimated Lifespan
    25+ years
  • Thermal Conductivity
    0.038 m2K/W
  • Water Resistance
    0.5 MNs/g
  • Reaction to Fire
    Euroclass E

Do You Ship to My Address?

We deliver to most mainland UK addresses. If you are in one of the areas listed below and are unable to checkout, please give us a call to put together a custom quote.

Northern Ireland (BT), Isle of Wight (PO30-37), Isle of Man (IM), Scottish Highlands and Orkney Isles (PA, ML, EH, KA, G, KY, PH, DD, AB, IV, KW), Outer Hebrides and the Shetland Isles (HS, ZE) will incur additional charges and may also experience delivery delays.

How Much Will My Delivery Cost?

You can work out the cost of delivery on your order before checkout by heading to our Delivery Info page.

How Long Will Delivery Take?

We aim to deliver your items in 3 - 5 Working Days unless otherwise specified (eg - Sheds and Paving Kits). After you have placed your order, we will process your order and book a delivery day - which will then be sent to you via Email.

If have a specific request, please do give our team a call on 01156976800 and we will do our best to help.

What If I Need to Return Something?

If for any reason you wish to return your purchase, we will offer a refund or an exchange as long as this is requested within 14 days of receiving your order.

A manufacturer’s restocking charge may also apply on certain products such as non-stock items, which may be up to 30% of the purchase price, and you will be notified of this amount when you request a refund or exchange.

For full information visit our Returns Policy.