Technical Statement
Product Description
Scope of use
Nuratherm insulated roof system can be used within the scope of E2/AS1.
It may be used to waterproof decks provided the membrane is protected from damage with a floating timber or tile surface on Nurajacks
It is suitable for commercial and residential buildings.
Potable water collection can be utilised, tested in accordance to AN/NZ 4020
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), B2.3.2(a)
- Clause E2 External moisture: Performance E2.3.1, E2.3.2, E2.3.7
- Clause F2 Hazardous building materials: Performance F2.3.1
- Clause G12 Water supplies: Performance G12.3.1, G12.3.2(a), G12.3.2(b), G12.3.2(c)
- Clause H1 Energy efficiency : Performance H1.3.1(a)
Evidence
The product meets the requirements set out in the following documents, or relevant parts of cited standards within the documents:
ATG certificates:
-
ATG
certificate 2323 UBAtc Issued:
26/06/2019 Expires: 25/06/24 Member of UEAtc
- ATG
certificate H867 UBAtc Issued: 10/08/21 Expires: 09/08/26 Member of UEAtc
-
ATG
Certificate 2726 UBAtc Issued: 09/01/22 Expires: 18/01/27
- Australian Water Quality Centre Report ID: 141927 Tested to: AS/NZS 4020:2005 Date of Issue: 16/07/2012 NATA Accredited.
Supporting evidence
The product has and can make available the following additional evidence to support the above statements:
Use in Service History
- ANZ Centre Christchurch.
- 125 Queen St Auckland.
- Sustainable Coastlines Education Centre Auckland.
- Life Church Mt Eden.
- Howick College Science Block.
- Balfour Apartments Auckland New Zealand: New building
project where Nuratherm Insulated Roof was applied to the roofing system.
Product Criteria
Design requirements
-
All plywood sheets must
be CCA treated to H3.2 The plywood must be a minimum thickness of 17mm
(21mm on decks) with the supporting joists at a maximum of 400mm centres.
- The concrete substrate
must meet the design requirements of NZS 3101.
- The steel substrate must be G550 Zincalume coated
to AS 1397.
- Strandboard must have a minimum fall of 1:30 with the supporting joist at a maximum of 600mm centres. Not for use on balcony decks.
- CLT substrates to the manufacturers design.
- A roof structure must
have a minimum fall of 1:80
- A
deck structure must have a minimum fall of 1:80 and gutters 1:100 all formed in accordance with Nuraply 3PM Roofing Membrane Installation Manual.
Installation requirements
- Ensure the substrate is of the highest standard before the installation. Qualified personnel are required to install both the insulation and waterproofing layer.
- For full checklist refer to Nuraply 3PM Roofing membrane Installation Manual: https://www.nuralite.co.nz/static-files/1354/application%2Fpdf/Nuraply%203PM%20Roof%20Membrane%20Installation%20Manual%202019%20Ed1%20-%20Text%20and%20Details.pdf
Maintenance requirements
-
Check
yearly for damage and rubbish.
- If
any damage is discovered, repairs and reapplication of coating see
recommendation from Nuralite Waterproofing Ltd.
- Drainage
outlets must be maintained regularly.
- Check
every 5 years by approved Nuralite personnel to maintain the warranty
- Water
blasting is not recommended
Warrantees
20-year product warranty.
Environmental
An
efficient way to insulate a flat roof system, reducing up to 35% of heat loss
from a home.
Contributes
toward Greenstar points
Suitable for
collection of potable water
Relationships
|
Member of New Zealand Green Building Council |
|
Toitu Carbon Zero Certification
2020007J |
|
Date last validated:
06 May 2022 |
|
Date last updated:
06 May 2022 |