Flat Roof Vapour Barrier Material

I live in southern ontario canada where there are significant differentials of temperatures from summer to winter.

Flat roof vapour barrier material. Traditionally we ve insulated the roof panel to try and keep the temperature on the panel from reaching the dew point. We ll add a vapor barrier so the moist air does not flow up through the insulation and condense on the roof. Vapour control layers vcl. 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.

A vapour control layer or vcl on a warm flat roof sits between the roof decking and the insulation. We are insulating a flat roof with tapered rigid insulation over a moisture barrier and then capped with modified bitumen. A vapour retarder or vapour barrier. This threat of condensation creates the possible need for another roof system component.

Including fibreglass roof kits torch on felt and liquid rubber products everything you need for flat roofing is in one place. The problem with using. But a preinstalled membrane may be even more effective at removing condensation. The buildup of a warm flat roof starts with a good vapour barrier followed by insulation then more decking or just the roofing materials depends on if you wa.

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. Vapour retarders are designed to intercept the flow of water vapor into the insulation where it can reduce the insulation s thermal resistance form a source of leaking water and possibly destroy the insulation itself. Bituminous vapour retarders asphalt mixed with felt or fiberglass or non bituminous vapour retarders plastic. The notion behind a vapour control layer is to install it on the room.

A flat roof vapour barrier such as iko s mvp modified vapour protector offers appropriate moisture protection. However we lose r value where the taper is thinnest and need to insulate under the sheeting. The vapour barrier is suitable for both warm and cold deck designs. Flat roof vapour barrier materials when constructing a flat roof there are two types of materials commonly used.