Description

Sika Boom^® is a self-expanding polyurethane foam air seal used around window and door penetrations and other cladding fenestration trim cavities to assist with weathertightness and energy efficiency.

Scope

Sika Boom^® has been appraised for use as an air seal around window and door penetrations and other cladding fenestration trim cavities in buildings within the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 with regard to building height and floor plan area; and,
• situated in NZS 3604 Wind Zones up to, and including Extra High.

Sika Boom^® has also been appraised as an air seal with window and door joinery that is designed and manufactured in accordance with NZS 4211, situated in NZS 3604 Wind Zones up to, and including Extra High, and where the cladding is an Alternative Solution and/or the building is outside the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1. The weathertightness design of the window and door joinery penetrations and other cladding fenestration trim cavities in these situations has not been assessed and is outside the scope of this Appraisal.