Pavaflex Flexible Wood Fibre Insulation

Pavaflex flexible wood fibre insulation is a natural, breathable and flexible insulation made from wood fibres and is treated with inorganic salts to provide fire and pest resistance. It has a good insulation K value of 0.038 W/mK and a density of 55kg/m3. Its hygroscopic nature means it is able to absorb moisture without adversely affecting the quality of the material.

As a natural wood based material, more carbon is locked up in Pavaflex than is released in production making it carbon negative. Its non-toxic nature also ensures it is easy to handle and not unpleasant to work with. It can be easily cut using the Pavaflex insulation knife and a handy tip is to cut the Pavaflex while it is within its packaging. This ensures the batts are held tightly and compressed, making cutting easier.

Pavaflex:
Application
Roof: Between rafters
Wall: Between studs
Floor: Between joists

Sizes
The Pavaflex batts are available in a range of thicknesses from 50mm up to 140mm and in widths of either 575mm or 375mm. Each batt measures 1350mm long.

Pavaflex is sold in packs the number of batts per pack and their coverage information is shown below.

Thermal performance
Pavaflex has a Thermal Conductivity value of 0.038 [W/(mK)].

Systems
Pavaflex is used between studs and rafters for many of the NBT insulation systems.