Vapour Control Barrier Flat Roof

A vapour control layer is designed to catch this vapour preventing it from condensing on the insulation or elsewhere in the loft space or attic.

Vapour control barrier flat roof.

The vcl also restricts the movement of warm moist air and improves building insulation. Comparatively a vapour barrier prevents any movement of vapour or air occurring through the building instead of just limiting it to a controlled level. If the roof is insulated with foil faced insulation blankets the aluminium side can serve as a vapour barrier at the same time. Self healing if punctured by fixings.

Damplas vapour control layer vcl is intended for use within flat roof structures to prevent the penetration of moisture into structure surfaces and to improve the airtightness of buildings. There is no requirement for any air gaps. Why is it the best vapour barrier for flat roofs. For all warm flat roofs a fully intact vapour barrier would be required on the room side under the insulation.

A vapour control layer helps you shield your building from the consequences of condensation condensation is generated when warm moist air rises and condenses into a liquid on contact with the cooler areas above the insulation. At roofing superstore our choice of flat roof materials includes everything you need to create a long lasting weather proof flat roof that performs and looks good too. The vapour barrier is suitable for both warm and cold deck designs. Provided your vapour control layer is intact then there should not be any risk of condensation.

This is known as. Its not cheap purchasing it by the role and by the pallet load is cheaper but is a considerable layout. Vapour resistance of 2000 mns g. A vapour control layer or vcl on a warm flat roof sits between the roof decking and the insulation.

We provide a vapour control layer for flat roof installations as well as heavy duty vapour control layers for a warm flat roof. Including fibreglass roof kits torch on felt and liquid rubber products everything you need for flat roofing is in one place. The notion behind a vapour control layer is to install it on the room. Vapour control layers vcl.

Using a vapour control layer to control condensation. However note that one should seal the seams here as well. Temporarily waterproofs the roof can stay uncovered for up to 3 months. A polythene vapour barrier limits the movement of air and water vapour through a membrane so a vapour control layer is air permeable or vapour permeable.