MAXI Butyl is a flexible flashing system for use around window and door joinery openings for buildings within the following scope:

• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1; and,
• with a risk score of 0-20, calculated in accordance with NZBC Acceptable Solution E2/AS1, Table 2; and,
• with wall cladding systems complying with NZBC Acceptable Solution E2/AS1 or a valid BRANZ Appraisal that specifies a flexible flashing tape system; and,
• with wall underlays compatible with the flexible flashing tape; and, situated in NZS 3604 Wind Zones up to, and including, 'Extra High'.
• MAXI Butyl is suitable as a flexible flashing system for use around window and door joinery openings for steel framed buildings

Always check for compatibility when applying MAXI Butyl over substrates outside BRANZ Appraised wall underlays and Rigid Air Barrier Systems. Particular attention to decking membranes.

B2 Durability — B2.3.1 (a), B2.3.2 (a)

E2 External moisture — E2.3.2, E2.3.5, E2.3.6, E2.3.7

F2 Hazardous building materials — F2.3.1 

MAXI Butyl has been in the market for over 15 years