Vapour Control Layer

Vapour Control Layer

Vapour control layers or VCLs are designed to prevent moisture from forming in the building. Without a vapour control layer, moisture will form and lead to issues such as condensation, mould growth, and damage to building materials. 

A vapour control layer is typically installed on the warm side of the insulation, and its primary function is to limit the amount of water vapour that can pass through it. VCLs are usually made from low-vapour permeability materials, such as polyethene.

JJ Roofing Supplies offers a range of VCL kits and air barrier membranes to help you maintain a watertight home. Our vapour control layers are competitively priced, and we offer both budget-friendly options and more expensive vapour barriers to suit your needs.

We supply VCL membranes from Industry-leading experts, including Icopol and Klober. You’ll find various permeability options to pick the most suitable product for your project.

We also stock:

Breathable Felts
Eaves Protector

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