Description

Thermakraft 213 Bituminous Roof and Wall Underlay is a kraft paper-based bituminous building underlay for use under roofs and wall claddings.

Scope

Roof Underlay

1. Thermakraft 213 has been appraised as a non-self-supporting roof underlay on buildings within the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 for timber-framed buildings; and,
• the scope limitations of NASH Building Envelope Solutions, Paragraph 1.1 for steel-framed buildings; and,
• with masonry tile roof cladding; or,
• with metal tile or profiled metal roof cladding; and,
• situated in NZS 3604 and NASH Standard Part 2 Wind Zones up to, and including, Extra High.

Flexible Wall Underlay

2. Thermakraft 213 has also been appraised as a flexible wall underlay for buildings within the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 for timber-framed buildings; and,
• the scope limitations of NASH Building Envelope Solutions, Paragraph 1.1 for steel-framed buildings; and,
• with direct fixed absorbent and non-absorbent wall claddings; or,
• with absorbent or non-absorbent wall claddings installed over an 18 mm drained cavity; or,
• with masonry veneer in accordance with NZBC Acceptable Solution E2/AS1 for timber-framed buildings or NASH Building Envelope Solutions for steel-framed buildings; and ,
• situated in NZS 3604 and NASH Standard Part 2 Wind Zones up to, and including, Very High.