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Thermory Ash Cladding

Thermory Ash is a White Ash timber cladding procured from North America and Europe forests, that has been thermally modified.

Key Features
  • Vertical Shiplap profile 132 x 19mm compliant with the New Zealand Building code
  • Dimensionally stable
  • Intense modification at 215°C to remove the sugars from the timber
  • The result of the thermal modification is that the timber has a very rich chocolate brown colour throughout the full thickness of the timber, which naturally ages to a platinum grey
  • No added chemicals
  • All Thermory timber is sourced from well managed American and European forests, that take care of forest responsibility and sustainability
  • Resistant to rot
Red List Material Free
Red List Material Free
Scope of Use
  • External cladding
  • Interior ceiling and wall lining
Other Performance Attributes
  • Class 1 Durability rating of 25+ years
  • Declare Red List free
  • Sustainably managed forests
Data Sheet


Declare Red Label Free
Test Report: Moisture Content and Dimensional Changes
Test Results: Durability Class 1
Test Results: Hardness
Test Results: Rot Resistance

Timberline is a supplier of premium quality solid finishing timbers including cladding, interior wall and ceiling linings, and other speciality products.

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