DriStud EcoDri FR Roof Underlay

Fire Retardant, Self-Support, High Vapour Permeable Synthetic Roof Underlay

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Build a sustainable future with DriSpace.
EcoDri FR is made of 80% Global Recycle Standard certified recycled materials.

Overview

EcoDri FR Underlay is a heavy-weight, fire-retardant, self-supporting synthetic roof underlay with excellent vapour permeability. It features a microporous, water-resistant film laminated to two layers of non-woven spun-bonded polypropylene. EcoDri FR is designed for use beneath roof claddings to assist with the weathertightness and moisture management of buildings.

EcoDri FR is composed of 80% recycled materials and features a dark grey top and white bottom. The hues may vary depending on the recycled material content.

Resources

Technical Properties

PropertyStandardValue
Weight (m²)181 ±3 g/m2
Flammability indexAS1530.2-1993≤ 5
Fire RetardantYes
Water Vapour ResistanceASTM E96 Procedure B≤ 0.5MN s/g; Pass
AbsorbancyAS/NZS 4201: Part 6Requirement ≥150 g/m²; Pass
Water ResistanceAS/NZS 4201.4:1994≥100mm H₂O; Pass
Resistance to UV exposureASTM G15521 days

Available Sizes

ROLL SIZES
1250mm x 40.0m (50m²)

Warranty

TCL Hunt Ltd warrants that all DriStud roofing underlays will be free from manufacturing defects. Upon receiving of DriStud roofing underlays, it is recommended that a visual check is made. Where defects are observed, these will be replaced at the discretion of TCL Hunt, provided that they are returned to point of purchase.

If installed in accordance with TCL Hunt installation requirements, TCL Hunt warrants that DriStud roofing underlays will comply with all relevant provisions of the NZ Building Code. DriStud roofing underlays will have a serviceability equal to that of the roof cladding provided that:

  • the balance of the external wall is installed in accordance with the NZ Building Code, and,
  • all necessary maintenance is undertaken in respect of the external wall system.