Breathable membranes have been used in buildings for many years now and, more recently, in cold

pitched roof constructions without traditional eaves ventilation.

The benefit of reduced heat loss and not having to incorporate ventilators has seen their use grow

but at the same time has attracted noticeable comment both from supporters of the application

and from detractors who favour traditional ventilation solutions.

Kangda Breathable consists of a microporous water resistant film, sandwiched between two layers of shrink resistant spun-bonded polyolefin.In Roof Applications - Intended for use as a alternative to conventional kraft paper roof underlay, which are fixed over timber or steel framed roofs

and to assist in the moisture management of roof cladding systems.In Wall Applications - Intended for use as an alternative to conventional kraft paper wall underlays, which are fixed over timber or steel frame walls

in order to limit the entry of wind into building cavities.

High performance KangDa breather membrane fully supported or unsupported tiled,

slated or metal roof system.

The benefits are: no additional risk of condensation, no requirements for eave and ridge venting,

a warmer roof space, increased efficiency of insulation, easy installation, easier site supervision

and simpler specifications.