Gripset 38 is a fibre reinforced, single part liquid rubber membrane designed for waterproofing wet areas, showers, laundries, roofs, terraces, balconies, decks, concrete slabs and general structures that will be covered over with toppings, tile beds or overlay finishes. Compliant to AS/NZS 4858:2004, Gripset 38 satisfies the requirements of AS3740 "Waterproofing Wet Areas in Residential Buildings". Developed by advanced polymer technology.
Scope of use
Internal wet areas, bathrooms, laundries and tiled areas
Balconies, decks, podiums, terrace floors
Roofs to be covered over with screeds and toppings
Sandwiching between existing and new concrete substrates
Liquid vapour barrier between toppings and slabs
General tiled areas to prevent moisture ingress
New Zealand Building Code (NZBC)
The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:
- Clause B2 Durability: Performance B2.3.1(b)
- Clause E3 Internal moisture: Performance E3.3.6
- Clause F2 Hazardous building materials: Performance F2.3.1
The product meets the requirements set out in the following documents, or relevant parts of cited standards within the documents:
BRANZ document 470 & BRANZ document 469
The product has and can make available the following additional evidence to support the above statements:
Use in Service History
15 Years in Service History in NZ.
Gripset® 38 and Gripset® 2P External Waterproofing Membranes are for use on decks and balconies where an impervious waterproof membrane is required to prevent damage to building elements and adjoining areas. The Gripset® 2P product is designed to be used where a quicker curing time is required, such as exterior decks , and walk in shower areas.
Installation of the membranes must be completed by trained applicators, approved by Waterproofing Systems NZ Ltd, who have experience in the application of waterproofing membranes and understand waterproofing principles.
No maintenance of the membranes will be required provided significant substrate movement does not occur and the tile finish remains intact. Regular checks must be made of the tiling to ensure it is sound and will not allow moisture to penetrate. Any cracks or damage must be repaired immediately by repairing the tiling and any grout or sealant. In the event of damage to the membranes, the tiling must be removed and the membrane repaired .
Gripset® 38 and Gripset® 2P External Waterproofing Membranes, when subjected to normal conditions of environment and use, are expected to have a serviceable life of at least 15 years and be compatible with ceramic or stone tiling finishes with a design service life of 15-25 years.