Economical waterproof breather membrane
Accreditation : BS 4016: 1997

Sisalkraft 40 Breather is recommended for use as a vapour permeable sheathing membrane which is water resistant and water repellent. It is used as a weatherproofing layer behind exterior cladding to provide an extra barrier.

The product meets Class 2, BS 4016: 1997 - Flexible building membranes (breather type).

Construction

Sisalkraft 40 Breather is processed from a kraft paper pulp, impregnated with water repellent chemicals. The material has a matt blue surface both sides, with smooth texture.

Technical Data

WATER VAPOUR, WATER

Water penetration tests to BS 4016: 1997 exceed requirements of 24 hours without leakage.
Vapour resistance is 0.26 MNs/g, tested to BS 3177.

HEAT

Sisalkraft 40 Breather will not be affected by extremes of temperature during installation and use (-10°C to 80°C).

STRENGTH

Tear resistance is 13-14N (BS 4016 Annex C)

Nominal weight is 130 g/m2
Nominal caliper is 0.24mm

Availability

Standard Roll Size	1000mm x 100m
Roll Weight	11.6 kg

All information given in good faith and is believed to be accurate. Technical data is based on laboratory testing and represents average values. Specific lots may vary above or below these values.