Compliance Statement
Scope of Use
Solatube Daylight Systems and Roof Penetrations have been appraised as a skylight and roof penetration system on domestic and commercial buildings within the following scope: ¬ the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 with respect to building height and maximum floor plan areas; and, ¬with building structures designed and constructed to meet the requirements of the NZBC; and, ¬situated in NZS 3604 Wind Zones up to, and including, Very High; and, ¬with roof cladding types and profiles specified in NZBC Acceptable Solution E2/AS1; and, ¬ for use on flat or nominally flat roofs making use of membrane roof systems. 2.2 Installation of Solatube Daylight Systems and Roof Penetrations must only be carried out by installers registered by HomeTech Ltd.
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
Performance B2.3.1 (b) 15 years. Solatube Daylight Systems and Roof Penetrations meet this requirement. See Paragraph 8.1. Solatube Daylight Systems and Roof Penetrations installations will remain effective with a serviceable life in excess of 15 years, provided they are installed following the instructions of HomeTech Ltd and this Appraisal.
- Clause E2 External moisture: Performance E2.3.1, E2.3.2
The Solatube Daylight Systems and Roof Penetrations, when installed in accordance with this Appraisal and the Technical Literature, will prevent the penetration of moisture that could cause undue dampness or damage to building elements. 11.2 Installation and weathertightness details must accurately follow the installation instructions provided by HomeTech Ltd for each flashing detail type.
- Clause F2 Hazardous building materials: Performance F2.3.1
: Performance F2.3.1. Solatube Daylight Systems and Roof Penetrations meet this requirement.
- Clause G4 Ventilation: Performance G4.3.3(a), G4.3.3(b), G4.3.3(c)
Performance G4.3.3 (a), G4.3.3 (b), and G4.3.3 (c). Solatube Daylight Systems and Roof Penetrations, when installed as a ventilation duct, will contribute to meeting these requirements. See Paragraph 13.1. When a Solatube Daylight System and Roof Penetration is installed and used as a ventilation duct, incorporating a fan, the ventilation system must satisfy the mechanical ventilation requirements of NZBC Acceptable Solution G4/AS1.
- Clause G7 Natural light: Performance G7.3.1, G7.3.2
The Solatube Daylight Systems and Roof Penetrations can assist in meeting the NZBC requirements for provision of sufficient natural light to building interiors.
- Clause H1 Energy efficiency : Performance H1.3.1
The polycarbonate light diffusion units mounted on the ceiling inside the building are constructed as double glazed units giving an R value of 0.41 m²K/W, thus satisfying the higher skylight R value requirement of 0.34 m²K/W.
Evidence
The product meets the requirements set out in the following documents, or relevant parts of cited standards within the documents:
Solatube Daylight Systems and Roof Penetrations are for use on domestic and commercial buildings, providing a roof penetration system allowing natural light or ventilation to the interior. The system is supplied as a kit providing a tubular roof to ceiling light channel or ventilation duct and a roof flashing system matching the roof type.