Permavent Pro VCL has been specially designed as a vapour control layer with the exact amount of breathability required to allow the building to breath, in conjunction with systems such as breather membranes, whilst still protecting the structure from interstitial condensation.
The highly technological design of Pro VCL has been specifically developed to remain airtight and form an air leakage barrier in conjunction with the super reflective coating. Pro VCL reduces heat loss and also saves energy.