Flat Roof Vapour Barrier Material

The vcl also restricts the movement of warm moist air and improves building insulation.

Flat roof vapour barrier material.

Bituminous vapour retarders asphalt mixed with felt or fiberglass or non bituminous vapour retarders plastic. This threat of condensation creates the possible need for another roof system component. A vapour retarder or vapour barrier. Flat roof vapour barrier materials when constructing a flat roof there are two types of materials commonly used.

A vapour control layer or vcl on a warm flat roof sits between the roof decking and the insulation. 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. The problem with using. The notion behind a vapour control layer is to install it on the room.

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. A flat roof vapour barrier such as iko s mvp modified vapour protector offers appropriate moisture protection. We are insulating a flat roof with tapered rigid insulation over a moisture barrier and then capped with modified bitumen. But a preinstalled membrane may be even more effective at removing condensation.

Including fibreglass roof kits torch on felt and liquid rubber products everything you need for flat roofing is in one place. Vapour control layers vcl. I live in southern ontario canada where there are significant differentials of temperatures from summer to winter. Traditionally we ve insulated the roof panel to try and keep the temperature on the panel from reaching the dew point.

The vapour barrier is suitable for both warm and cold deck designs. 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. We ll add a vapor barrier so the moist air does not flow up through the insulation and condense on the roof. I have recently finished installing a celotex warm roof to my house i have several sheets left over my flat roof extension needs to be recovered and insulated also as a warm roof can i use the 100 mm ga 4000 insulation boards i have left over for this project if so would i need to use a vapour control barrier or would taping the joints act.