Description

The ENCLOSURE™ Sheathing System is a rigid air barrier system with structural bracing applications, designed for NZS 3604 timber-framed residential buildings.

It consists of the ENCLOSURE™ Sheathing Board and ENCLOSURE™ Facade and Roofing Membrane.

Scope

1. The ENCLOSURE™ Sheathing System has been appraised for use as a rigid wall underlay and temporary weather-protecting sheathing on buildings within the following scope:

• constructed with timber framing in accordance with the scope limitations of NZBC Acceptable Solution E2/AS1; and,
• with wall claddings installed over an 18 mm minimum drained cavity; or,
• with masonry veneer in accordance with NZBC Acceptable Solution E2/AS1; and,
• situated in NZS 3604 Wind Zones up to, and including, Extra High; or,
• when used in conjunction with wall cladding systems suitable for use with maximum wind pressures for structural and weathertightness design of 2.5 kPa ultimate limit state (ULS).

Bracing

2. The ENCLOSURE™ Sheathing System has also been appraised for use as a wall bracing system for timber-framed buildings within the scope of NZS 3604.

Fire

3. The ENCLOSURE™ Sheathing System can be used to form Fire Resistance Rated (FRR) separations. This has not been assessed and is therefore outside of the scope of this Appraisal.