Where to use it

Constivap 2.3 Plus can be used internally on roofs, walls and ceilings in timber frame constructions or in the timber roof of masonry buildings. It is suitable for use with non-breathable insulation like PIR/PUR and all fibrous insulation materials especially when levels of humidity and moisture in the building will not change significantly over time. Situations like this occur when warming of the building’s exterior does not cause additional moisture vapour to be driven into the building.  

The exterior of the building must be vapour open and have an appropriate external membrane installed for example a Pro Clima breather membrane.

What it does

Constivap 2.3 Plus airtight vapour control membrane provides low-cost breathable airtightness to a building. Airtight membranes ensure draughts, air leakage and heat loss are eliminated from a building to ensure, over the lifetime of a building, heating bills will be significantly reduced. 

Why we love it

Constivap 2.3 Plus allows installers and homeowners to enjoy an easier faster installation. This is due to the membrane’s translucent white appearance. Seeing through the airtight vapour control membrane allows installers to see the structure behind to quickly identify safe fixing locations and avoid damage to services like pipes and cables that may otherwise be unseen. 

The fleecey backing allows for easy movement when positioning the membrane in place, reducing the chances of the membrane being compromised on sharp objects or corners.  

Constivap2.3 Plus is pre marked with 100mm overlap guide lines printed along the edge so no measuring is required when applying membrane to membrane with the correct depth of overlap.

How it works

Constivap 2.3 Plus, alongside the range of Pro Clima airtight tapes, sealants and accessories, ensures the building will remain airtight so that the structure remains comfortable and cost effective for the occupier.