Flat Roof Vapour Barrier Membrane

A roof design that includes an adhered roof membrane with multiple layers of insulation with board joints offset and staggered over a vapor retarder air barrier helps lower the risk that air and the moisture it carries will infiltrate the roof system.

Flat roof vapour barrier membrane.

Insulation location is it above the deck within the deck under it or a mix of both. Built up roof membranes bur built up roof membranes referenced by the acronym bur have been used reliably on flat roofs for many decades. Vapour control layers vcl prevent any water from entering or leaving the roof space ensuring that moisture does not transfer between layers or through walls or roofs and build up within the roof or wall space. You ll find pitched roofing products here.

The notion behind a vapour control layer is to install it on the room. A vapour control layer or vcl on a warm flat roof sits between the roof decking and the insulation. Reduce heat loss and boost energy efficiency with market leading vapour control layers vapour barrier membrane and vapour control barriers. This is different to breather membranes which allow the movement through the membrane to ensure water vapour can leave the roof space.

Colour of outer membrane light coloured membranes reflect more sunlight and therefore have lower levels of heat transfer to the roof than the same roof with a dark membrane. Looking for pitched roof materials. There is no requirement for any air gaps. Below the main roofing layers are the substructure wood concrete or metal insulation plywood underlays vapor barriers etc.

Provided your vapour control layer is intact then there should not be any risk of condensation. Including flat roof vapour barrier for extra secure roofing solutions. 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. For all warm flat roofs a fully intact vapour barrier would be required on the room side under the insulation.

Roofing membrane 18mm plywood or osb. Flat roof vapour barrier materials when constructing a flat roof there are two types of materials commonly used. A flat roof vapour barrier such as iko s mvp modified vapour protector offers appropriate moisture protection.