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Building Membranes

Vapour Barriers

Vapour Barriers

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High quality Building Membranes products

Seal and protect your property from moisture and condensation with our range of professional building membrane systems.

What are building membranes?


A building membrane is a thin layer that provides moisture resistance to protect the internal spaces of a building from the risks posed by moisture and condensation.

In the UK, where our colder climate means that winter temperatures can regularly get colder than 4 degrees, it is considered best practice to use building membranes, such as vapour barriers. By installing these membranes, you can protect your structure against the occurrence of moisture from the outside penetrating into a building, as well as moisture from the inside (such as airborne water vapour) passing into structural cavities and creating condensation problems.

Why are building membranes important?


Building membranes are important because they reduce the risk of damp-related problems in your building, such as condensation, mould and rot. By reducing these risks, building membranes can also contribute towards improving the energy efficiency of your home.

What building membrane brands do we stock?


We stock and supply high-quality building membrane systems, including the required tapes for securely sealing the overlapping membranes, from top manufacturers including A. Proctor Group and Visqueen.
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Frequently Asked Questions About Building Membranes

What is a building membrane, and what are its functions?

A building membrane is a thin material or layer installed within the building envelope to perform specific functions such as controlling moisture, air infiltration, or waterproofing. These membranes help improve the overall performance, durability, and energy efficiency of buildings.

What are the different types of building membranes?

Building membranes can be classified into various types based on their functions. Typically this includes:

Vapour barriers: Control the diffusion of water vapour to prevent condensation within building assemblies.

Air barriers: Control the movement of air to prevent air leakage and improve energy efficiency.

Insulation membranes: Serve as vapour barriers and protect insulation materials from moisture intrusion.

Where are building membranes typically installed in a building?

Building membranes can be installed in different locations within the building envelope, depending on their specific functions. Vapour barriers are typically installed on the warm side of exterior walls and roofs, whilst air barriers are installed to control air leakage in walls and roofs.

How do I choose the right building membrane for my project?

The selection of a building membrane depends on factors such as climate, building design, local building codes, and the specific performance requirements of the project. It’s essential to consider factors such as permeability, durability, compatibility with other building materials, and installation requirements when choosing a membrane.

Can building membranes contribute to energy efficiency?

Yes, building membranes such as vapor barriers and air barriers play a crucial role in improving energy efficiency by reducing heat loss and air leakage through the building envelope. Properly installed membranes help maintain consistent indoor temperatures, reduce heating and cooling loads, and enhance overall building performance.

How do I ensure the proper installation of building membranes?

Proper installation of building membranes is essential for their effectiveness. This may involve following manufacturer guidelines, ensuring proper sealing of seams and penetrations, conducting quality assurance inspections, and hiring trained professionals with experience in membrane installation.

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