Flat Roof Vapour Control Barrier

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.

Flat roof vapour control barrier.

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. Vapour control layer for a cold roof. Including fibreglass roof kits torch on felt and liquid rubber products everything you need for flat roofing is in one place. Bituminous vapour retarders asphalt mixed with felt or fiberglass or non bituminous vapour retarders plastic.

Vapour control layers vcl. Temporarily waterproofs the roof can stay uncovered for up to 3 months. For all warm flat roofs a fully intact vapour barrier would be required on the room side under the insulation. Its not cheap purchasing it by the role and by the pallet load is cheaper but is a considerable layout.

Self healing if punctured by fixings. Provided your vapour control layer is intact then there should not be any risk of condensation. A vapour control layer or vcl on a warm flat roof sits between the roof decking and the 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.

Flat roof vapour barrier materials when constructing a flat roof there are two types of materials commonly used. 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. 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. There is no requirement for any air gaps.

The notion behind a vapour control layer is to install it on the room. Why is it the best vapour barrier for flat roofs. A flat roof vapour barrier such as iko s mvp modified vapour protector offers appropriate moisture protection.