Description

The INTELLO Humidity Variable Intelligent Airtightness System utilises synthetic membranes for use as a humidity-variable vapour control layer and as part of an air barrier system fitted to the inside face of ceilings and external walls. The INTELLO membranes consist of a polyethylene copolymer with a polypropylene fleece backing. Accessories include adhesive, tapes and penetration seals, which are supplied as part of the system.

The purpose of the system is to reduce air infiltration through the building fabric to reduce heat loss and to control the diffusion of water vapour through the building envelope.

Scope

The INTELLO Humidity Variable Intelligent Airtightness System has been appraised for use as a vapour control layer and air barrier on buildings within the following scope:

• constructed with timber framing in accordance with NZS 3604, or to a specific engineering design; or
• constructed with steel framing in accordance with NASH Standard Part Two, or to a specific engineering design; and
• used on walls and ceilings which incorporate fibrous thermal insulation.

The use of the INTELLO Humidity Variable Intelligent Airtightness System in buildings with high moisture loads, such as swimming pools, commercial laundries and kitchens or with non-vented membrane roof coverings has not been assessed and is therefore outside the scope of the Appraisal. Contact Pro Clima (NZ) Ltd. for use of the INTELLO Humidity Variable Intelligent Airtightness System in these building types.