DriStud RU 24 Roof Underlay
- Valid from
- Information provider
- Ministry of Business, Innovation and Employment
- Bureau Veritas
- Information type
- Product Certificate (CodeMark)
DriStud RU 24 is a non-fire retardant, black faced synthetic tri-laminate roofing underlay that is water resistant and vapour permeable. It is a heavy grammage Vapour Permeable Synthetic Self Support Roof Underlay (Non Fire Retardant).
The underlay is branded with the DriStud RU24 Self Supporting Roof Underlay branding.
- DriStud RU 24 must be installed in accordance with the DriStud RU 24 Installation Guide Rev 3.0 (March 2019). This is available at www.dristud.co.nz
- DriStud RU 24 may be installed over both timber and steel roof framing.
- This certificate covers the use of DriStud RU 24 under: Masonry Tiles, Terracotta tiles, Metal tiles, Profiled metal claddings, slate and composite panels.
- DriStud RU 24 can span up to 1200mm between adjacent supports. Where the span exceeds 1200mm or the roof pitch is ≤10° a corrosion resistant mesh or alternative i.e. plastic strapping