Technical Statement
Product Description
Scope of use
Suitable for all
roofs with a pitch between 15-90 degrees, used in conjunction with VELUX
proprietary flashings or custom-made flashings in accordance with the latest
version of the New Zealand Roofing Code of practice.
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, B2.3.2
Product has CodeMark certification. (BRANZ CM-1009)
- Clause E2 External moisture: Performance E2.3.1, E2.3.2, E2.3.7
Product has CodeMark certification. (BRANZ CM-1009)
- Clause G4 Ventilation: Performance G4.3.1, G4.3.3
Product has CodeMark certification. (BRANZ CM-1009)
- Clause G7 Natural light: Performance G7.3.1, G7.3.2
Product has CodeMark certification. (BRANZ CM-1009)
- Clause H1 Energy efficiency : Performance H1.3.1, H1.3.2E, H1.3.3
Product has CodeMark certification. (BRANZ CM-1009)
Notes
B2/AS1 Durability - AS 4285 - VELUX Skylights satisfy
the durability requirements specified for Non-structural Roof Cladding elements
and External Window/Door Joinery.
C3 Protection from Fire - AS 1530 - VELUX Skylights have
been classified as “non-combustible” according to AS 1530 test methods.
E2 External Moisture - AS 4285 - VELUX Skylights have
passed tests for weather tightness, concentrated load, non-cyclonic and
cyclonic wind pressures .
F2 Hazardous Building Materials - NZS 4233: Part 4, AS/NZS 4666
- VELUX Skylights comply with requirements for sloped Insulating Glass Units.
G4/AS1 Natural Ventilation (1.2, 2.1) - VELUX Opening Skylights can be used to
meet the
G4 Natural Ventilation requirements.
G7 Natural Light - VELUX Skylights can be used to meet the G7
Natural Light requirements.
H1 Energy Efficiency - NZS 4218 - VELUX Skylights exceed the
minimum R-value requirements for skylights in all climate zones.
Evidence
The product meets the requirements set out in the following documents, or relevant parts of cited standards within the documents:
- B2/AS1 Durability - AS 4285 - VELUX Skylights satisfy the durability requirements specified for Non-structural Roof Cladding elements and External Window/Door Joinery. VELUX Skylights have passed tests for weather tightness, concentrated load, non-cyclonic and cyclonic wind pressures according to Australian Skylight Standard AS4285 test methods.
- C3 Protection from Fire - AS 1530 - VELUX Skylights have been classified as “non-combustible” according to AS 1530 test methods.
- E2 External Moisture - AS 4285 - VELUX Skylights have passed tests for weather tightness, concentrated load, non-cyclonic and cyclonic wind pressures according to Australian Skylight Standard AS4285 test methods.
- F2 Hazardous Building Materials - NZS 4233: Part 4, AS/NZS 4666 - VELUX Skylights comply with requirements for sloped Insulating Glass Units.
- G4/AS1 Natural Ventilation (1.2, 2.1) - VELUX Opening Skylights can be used to meet the G4 Natural Ventilation requirements.
- G7 Natural Light - VELUX Skylights can be used to meet the G7 Natural Light requirements.
- H1 Energy Efficiency - NZS 4218 - VELUX Skylights exceed the minimum R-value requirements for skylights in all climate zones.
- Evidence: 30+ years of historical use in New Zealand
Supporting evidence
The product has and can make available the following additional evidence to support the above statements:
Use in Service History
40+ years use in New Zealand
Product Criteria
Design requirements
GGU Roof Windows are modular manual opening Roof Windows intended
for roof pitches between 15 and 90 degrees. They are available in standard sizes
only. The IGU glazing unit has argon gas fill and Low E3 applied to the inside
surface of the outer pane. The IGU unit meets the requirements of NZBC F2
GGU Roof Windows have been tested for impact but are not intended
to be part of a trafficable roof surface.
GGU Roof Windows do not have a fire rating.
Installation requirements
Install GGU roof window in accordance
with instructions supplied with GGU roof window and local building code
requirements. PG_452953-2013-03-GGL-GGU_V22.indd (azureedge.net) Align
skylight with the trim opening, free of warp or twist, maintaining dimensional
tolerances. Attach skylight to the trim-out frame with screws furnished by
manufacturer. Coordinate attachment and seal of perimeter air and vapor barrier
material. Weathertightness to be achieved by using either VELUX proprietary
flashings installed in accordance with supplied installation instructions, or
custom-made flashings made in accordance with the latest version of NZ Roofing
Code of Practice.
Maintenance requirements
For maintenance requirements refer to http://https//www.velux.co.nz/service-and-warranty/maintenance.
Exterior surfaces must be cleaned with clean water at least once
a year, subject to the environmental conditions present.
Quality Assurance
 |
ISO 9001 (Quality Management) |
 |
Date last validated:
03 November 2023 |
 |
Date last updated:
03 November 2023 |