MAXRaft Concrete Slab Floor System
- Abbreviation
- Appraisal number 1054 (2019)
- Amendment
- 14/07/2021
- Valid from
- 20/03/2019
- Information provider
- BRANZ Limited
- Information type
- BRANZ Appraisal
- Format
Description
The MAXRaft Concrete Slab Floor System is an insulated, concrete slab-on ground flooring system for use in residential and light commercial buildings.
The MAXRaft Concrete Slab Floor system features a continuous polystyrene insulating layer beneath the slab and to the exterior perimeter surfaces. The MAXRaft Concrete Slab Floor System can be designed as an insulated slab-on-grade where conditions meet the requirement of 'good ground' as per NZS 3604. Alternatively, it can be designed as a waffle raft floor designed to suit ground conditions on the subject site.
Scope
The MAXRaft Concrete Slab Floor System has been appraised for use to construct steel reinforced, concrete slab-on-ground floors subject to specific engineering design for buildings within the following scope:
- Ground floor slabs for timber framed buildings, within the scope of NZS 3604, or other similar light weight constructions where they are subject to specific engineering design; and
- Built on "good ground" as defined by Acceptable Solutions and Verification Methods for NZBC Clause B1 Structure; or
- Built on "TC2" type ground within the "Canterbury earthquake region" or moderately to highly expansive soils, subject to verification and assessment by a Chartered Professional Engineer.