NZ's highest performing Branz Appraised tubular daylighting system. 250 mm Tube Size (diameter) with an installation length of up to 6m. Suites small rooms up to 3m x 3m.
Optional add on accessories.
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Scope2.1 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.
Performance B2.3.1 (b) 15 years. Solatube Daylight Systems and Roof Penetrations meet this requirement. See Paragraph 8.1.
Durability Serviceable Life 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
Performance E2.3.1 and E2.3.2. Solatube Daylight Systems and Roof Penetrations meet these requirements. See Paragraph 11.1
External Moisture 11.1 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.
Performance F2.3.1. Solatube Daylight Systems and Roof Penetrations meet this requirement.
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
Ventilation 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.
Performance G7.3.1 and G7.3.2. Solatube Daylight Systems and Roof Penetrations will contribute to meeting these requirements. See Paragraph 15.1
Natural Light 15.1 The Solatube Daylight Systems and Roof Penetrations can assist in meeting the NZBC requirements for provision of sufficient natural light to building interiors.
Performance H1.3.1 (a). Solatube Daylight Systems and Roof Penetrations will contribute to meeting this requirement. See Paragraph 16.1
Energy Efficiency 16.1 The polycarbonate light diffusion units mounted on the ceiling with a thermal insulation panel gives an R value of 0.48 and without gives an R value of 0.35, thus satisfying the higher skylight R value requirement of 0.34 m²K/W.
In the opinion of BRANZ, Solatube Daylight Systems and Roof Penetrations, if designed, used,installed, and maintained in accordance with the statements and conditions of this Appraisal, willmeet or contribute to meeting the following provisions of the NZBC:Clause B2 DURABILITY: Performance B2.3.1 (b) 15 years. Solatube Daylight Systems and RoofPenetrations meet this requirement. See Paragraph 8.1.Clause E2 EXTERNAL MOISTURE: Performance E2.3.1 and E2.3.2. Solatube Daylight Systems andRoof Penetrations meet these requirements. See Paragraph 11.1.Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Solatube Daylight Systems andRoof Penetrations meet this requirement.Clause G4 VENTILATION: Performance G4.3.3 (a), G4.3.3 (b), and G4.3.3 (c). Solatube DaylightSystems and Roof Penetrations, when installed as a ventilation duct, will contribute to meetingthese requirements. See Paragraph 13.1.
Installation Information Installation Skill Level Requirements 17.1 Installation of Solatube Daylight Systems and Roof Penetrations and associated components supplied by HomeTech Ltd must be installed by installers registered with HomeTech Ltd. System Installation 18.1 Installation of Solatube Daylight Systems and Roof Penetrations must be completed in accordance with the instructions of HomeTech Ltd. 18.2 Particular attention must be paid to the sizing and creation of apertures in the roofing material and associated placing and installation of the flashing elements supplied as part of the kit. 18.3 Care must be taken during transportation and installation to avoid damage to the Solatube elements and associated flashing components
Basis of Appraisal The following is a summary of the technical investigations carried out: Investigations 20.1 BRANZ has assessed Solatube Daylight Systems and Roof Penetrations for function, fitness for purpose and resistance to impact, based on in-service performance. 20.2 An assessment was made of the durability of the components of Solatube Daylight Systems and Roof Penetrations by BRANZ technical experts. 20.3 The double glazed light diffusion units have been assessed for thermal resistance by BRANZ experts and were found to be satisfactory.
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
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