SilverSark® HVB

SilverSark® HVB is designed for use where water barrier and Class 1 Vapour Barrier properties are required for use as a roof sarking and wall wrap in residential and commercial buildings in ABCB Climate Zone 1 and regions north of the Tropic of Capricorn in Climate Zone 2.

NOTE: Condensation risks should be addressed when the product is positioned on the cold side of constructions as the risks may increase.

For ABCB Climate Zones 6, 7, 8 use a Class 3 or better permeable wrap on the outside of the insulation to allow ambient vapour to escape without condensing into liquid. Class 3 Vapour Permeable wrap for typical brick veneer and cavity constructions or Class 4 Vapour Permeable wrap, water barrier for light weight clad constructions.

SilverSark^® HVB

When specifying, state the following:
Product Name: Ametalin SilverSark® HVB

The insulation to be installed shall be Ametalin SilverSark® HVB, high Vapour Barrier single-sided reflective laminate and shall be installed in accordance with AS/NZS 4200.2: 2017 Pliable Building Membranes and Underlays, Part 2: Installation Requirements.

Emittance Value: 0.90, 0.03
Emittance Classification: IR Non-reflective, IR Reflective
Water Vapour Transmission: 0.190 g/m²•24hr
Vapour Permeance: 0.002 µg/N.s
Vapour Barrier Classification: Class 1
Water Barrier Classification: Water Barrier

Duty: Extra Heavy in accordance with AS/NZS 4200.1:2017

SilverSark HVB - Technical Data Sheet (PDF)