Vapour Barrier Roofing Membrane

Vapour permeable breather membranes minimise the amount of water vapour that condenses within the roof or wall space helping to minimise damp mould and rot.

Vapour barrier roofing membrane.

If you want to run anything else by our technical team feel free. They can be contacted by email. A vapor barrier can be loose laid or fully adhered. A vapour barrier sometimes referred to as vapour retarder is typically a plastic or foil sheet used for damp proofing to prevent interstitial condensation from forming in various building assemblies such as walls roofs foundations and floors.

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. Technical celotex co uk or by phone on 01473 820850. The vapor barrier protects the roof insulation from the vapor included in the interior air. This vapor if left unchecked can wet the insulation and over time will reduce the r value of the insulation and lead to mold.

Reduce heat loss and boost energy efficiency with market leading vapour control layers vapour barrier membrane and vapour control barriers. Moisture in homes is unavoidable making moisture in wall cavities nearly inevitable and dangerous if not properly addressed. Sopralene 180 sp 3 5. 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.

Roofing vapor retarder air barrier. Enjoy your weekend terry. You ll find pitched roofing products here. Comparatively a vapour barrier prevents any movement of vapour or air occurring through the building instead of just limiting it to a controlled level.

On the external side however not all vapour permeable membranes are suitable so for example an air permeable breather membrane would allow air leakage which would not. Sopra 4897 is composed of a proprietary formulation of elastomeric styrene butadiene styrene sbs polymer modified bitumen. An introduction to vapour barriers and vapour retarders. Air permeable breather membranes using an air permeable breather membrane removes the need for a vapour control level because vapour and air can freely pass through the membrane and the.

Nearly all vapour control layers can be used as the internal air barrier membrane. So that simply means that the membrane which is used internally is both air and vapour tight. Roofing membrane 18mm plywood or osb celotex vapour control layer 18mm plywood or osb joists. What is a vapour barrier.

Certainteed s membrain continuous air barrier smart vapor retarder is the industry s most advanced technology to create a better performing home.