Duo is specifically designed for roofs, decks, balconies, terraces and podiums. It is suitable for new builds and refurbishments, residential and commercial construction, in any location and wind zone in New Zealand. 

Soprema Duo Roof and Deck Membrane Systems have been appraised as roof and deck waterproofing membranes on buildings within the following scope:

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

Approved for substrate with finished falls of:

• Roofs: Minimum 1:80 (0.7°)
• Decks: Minimum 1:80 (0.7°)
• Gutters: Minimum 1:100 (1%)

See BRANZ Appraisal 685 and CodeMark for full information.

In areas of regular foot traffic, higher than for normal maintenance traffic, the membrane must be overlaid with Fixplus pedestals and pavers or decking, Kraitec Step walkway tiles or other approved protection.

The product must be installed by a Certified Equus Applicator.

See BRANZ Appraisal 685 for full information.

In the opinion of BRANZ, Soprema Duo Roof and Deck Membrane Systems, if designed, used, installed and maintained in accordance with the statements and conditions of Appraisal 685, will meet the following provisions of the NZBC:

• Clause B2 DURABILITY: Performance B2.3.1 (b) 15 years.
• Clause E2 EXTERNAL MOISTURE: Performance E2.3.1 and E2.3.2. 
• Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1

See BRANZ Appraisal 685 for full information.

This system has over 20 years proven performance in NZ, over 90 years worldwide designed for use on exposed architectural flat roofs, podium decks, balconies, and terraces.

• Warranty 20 years (25 years available) with the correct specification and installed by an Equus Certified Applicator
• Additional 20 years insurance-back manufacturer warranty
• Life expectancy of at least 35 years in all New Zealand climates
• Easy to maintain
• Fire retardant membrane, strong UV resistance, and shrink-free