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THERMABAR 397
Synthetic light-diffusing foil underlay
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Thermabar 397 is a high strength foil wall and roof underlay used in commercial and industrial buildings to provide a vapour control layer. The product is designed to give a clean white finish enhancing natural light reflection when exposed in warehouse situations.
Thermabar 397 is self-supporting and fire retardant.
Product Specifications
Thermabar 397 comes in one roll size:
Width | Length | Coverage |
---|---|---|
1350mm wide | 55.6m long | 75m² coverage* |
* Note: m² is the roll size for actual coverage, allow for laps and joins.
Thermabar 397 can be used in commercial and industrial buildings within the following scope:
Refer to the NZ Metal Roof and Wall Cladding Code of Practice for advice when used in contact with profiled metal roof cladding.
When Thermabar 397 is used, installed and maintained in accordance with Thermakraft literature and BRANZ Appraisal,
the product will meet or contribute to meeting the following provisions of the NZBC:
Thermabar 397 Underlay has an AS 1530 Part 2 Flammability Index of not greater than 5 and therefore meets the requirements of the NZBC Acceptable Solutions C/AS2 to C/AS6, Paragraph 4.17.8b), for the surface finish requirements of suspended flexible fabric used as an underlay to exterior cladding that is exposed to view in occupied spaces. It may therefore be used with no restrictions in commercial and industrial buildings.
Thermabar 397 will meet the performance requirements of NZBC Clauses B2, B2.3.1 (b) 15 years, F2 Hazardous Building Materials F2.3.1, providing:
* Note: specifiers and product user must confirm roof and wall cladding system compatibility with the underlay before installation.
Thermabar 397 is intended for use in commercial and industrial buildings that are subject to specific engineering design. These buildings generally do not require the use of an underlay for internal moisture control.
Thermabar 397 must only be used in buildings with adequate means of ventilation, moisture and condensation control. Buildings incorporating high moisture loads such as swimming pools, freezers, cool stores, open liquid containers and moisture generating plants require specific design and are outside the product’s usage and BRANZ Appraisal scope.
For passive ventilation of the roof space, it is recommended that all roof underlays are terminated at the ridge, and if not it should be slit or slotted to allow for passive ventilation. (For further information refer to the NZ MRM Roofing Code of
Practice).
Standard Thermakraft warranty applies. Refer to Thermakraft Warranty Statement for further details. This item is available online here or call 0800 806 595.
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