QPOD Foundation
- Abbreviation
- CMNZ30156 version A
- Version
- A
- Valid from
- 11/03/2024
- Information provider
- Ministry of Business, Innovation and Employment,
- Author
- Global-Mark Pty Ltd
- Information type
- Product Certificate (CodeMark),
- Format
- PDF,
Description
QPOD concrete floors have been designed to support timber framed or light steel framed residential houses up to 2 storeys.
The QPOD Foundation is a building method which utilizes QPOD plastic void formers, certified concrete and reinforcing steel to form reinforced concrete, slab-on-ground floors in either Raft or Continuous format.
Scope
1. QPOD Concrete Floors are certified for use in buildings within the following scope limitations:
- a. buildings, up to two storeys high, either:
- i. timber framed within the scope of NZS 3604:2011 (paragraph 1.1.2), or
- ii. steel framed within the scope of NASH Part 2:2019 Light Steel Framed Buildings.
- b. with a maximum height of 10 m measured from the ground to the apex,
- c. supported on:
- i. “good ground” as defined by the Acceptable Solutions and Verification Methods for New Zealand Building Code Clause B1 Ministry of Business, Innovation and Employment, First Edition, July 2005 (Amendment 21, 2 November 2023) or
- ii. “TC1” ground as defined in Repairing and rebuilding houses affected by the Canterbury earthquakes, Ministry of Business, Innovation and Employment, Version 3, Dec 2012 or
- iii. on ground with a reduced ultimate bearing capacity of minimum 200kPa with all other requirements of ‘Good ground’ and ‘TC1” type ground.
- d. with weights and loads as set out in section 2.2 of THE QPOD® DESIGN MANUAL for CONTINUOUS and RAFT applications VERSION 1.4 November 2023; and
- e. situated in Wind Zones up to and including Very High; and
- f. In areas of Seismic Hazard Factor Z is equal to or less than 0.45 (Zone 3)
2. Design shall be in accordance with THE QPOD® DESIGN MANUAL for CONTINUOUS and RAFT applications VERSION 1.4 November 2023.
3. The installation must be either done or supervised by an LBP who holds either a carpentry or a foundation license and have access to the Technical Documentation.
4. Certified concrete in accordance with NZS 3104:2021 shall be used for all QPOD® foundations with reference to the Zone exposure categories outlined in 4.2.3 of NZS3604-2011 For Exposure Zones B-C, Foundations shall be 20 MPa minimum. For Zones D (sites within 500m from the sea or within 100m from tidal estuaries and sheltered inlets), foundations shall be 25 MPa minimum.
5. Compliance with H1.3.1(a) and H1.3.2E for buildings incorporating the QPOD concrete floor shall be established by specific design using either:
- a. the Schedule Method in H1/AS1 Fifth Edition Amendment 1, (4 August 2022) and H1/AS2 First Edition Amendment 1, (4 August 2022), or
- b. the Calculation Method in H1/AS1 Fifth Edition Amendment 1, (4 August 2022) and H1/AS2 First Edition Amendment 1, (4 August 2022), using construction R-values:
- i. from the performance tables described in Acceptable Solution H1/AS1 Fifth Edition Amendment 1, (4 August 2022) Section F.1.2 or H1/AS2 First Edition Amendment 1, (4 August 2022) Section F.1.2 or
- ii. calculated by the method in Verification Method H1/VM1 Fifth Edition Amendment 1, (4 August 2022) Appendix F Section F.1.2 or Verification Method H1/VM2 First Edition Amendment 1, (4 August 2022) Appendix F Section F.1.2.