Products  >  Window sill insulation boards

Window sill insulation board

Wedge shaped insulation board for window sill application

Areas of application

For installation under window sills as a secondary weathering protection. Hydrophobic Wood fibre board with directly applied, diffusion open and weather repellent membrane.


• Reliable protection from wind, driven rain and snow
• Robust safety for window connections in timber construction
• Particularly easy to install
• Available in standard lengths and widths

Sizes and Packaging information

Stocked size: 140mm (Width) x  20mm (Thick) x 1350mm (Length)

Price:  $38.00 / piece (GST inclusive) 

For any other size, please contact us for prices

Minimum order quantities: Pack quantity

Sales terms + Delivery Options:  Learn more here

 Technical Specifications

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Our natural wood fibre insulation partner: Steico


Benefits of Natural Wood Fibre Insulation

Excellent summer heat protection

Excellent winter protection 

Weather tight and breathable

Good sound protection

Excellent fire protection

Easy to install with regular tools

© 2020 Insulate Naturally 

Insulate Naturally is an Australian supplier of truly green building & insulation materials.
We specialise in natural, ecological, and healthy wood fibre insulation products for the home. 
We deliver throughout Australia: NSW, Victoria, Queensland, ACT (Canberra), WA, SA, Tasmania.
We can also ship to New Zealand.