Sarnafil Green Roof Waterproofing System
- Appraisal number 902 (2021)
- Valid from
- Information provider
- BRANZ Limited
- Information type
- BRANZ Appraisal
The Sarnafil Green Roof Waterproofing System is a ballasted green roof for concrete roof structures incorporating loose laid Sarnafil membranes and insulation board.
The Sarnafil Green Roof Waterproofing System has been appraised for use as a green roof on buildings within the following scope:
- with substrates of suspended reinforced concrete; and,
- with each structure the subject of specific structural engineering and weathertightness design.
The design and construction of the substrate and movement and control joints is the responsibility of the building designer and building contractor.
The design and installation of the drainage board, filter sheet and ballast is the responsibility of the green roof contractor and is outside the scope of this Appraisal.
The Sarnafil Green Roof Waterproofing System must be installed by Sika (NZ) Ltd trained and approved applicators.