Havelock Wool Window and Door Insulation

Rated 5.0 out of 5
Based on 1 review
$48.00
Healthy, high-performance, and sustainable loose-fill insulation designed to be stuffed around windows and doors. Each box contains 2 lbs of wool insulation which insulates approximately 21 windows (36” x 60” windows with an average .3/8” x 2” gap). Proper air sealing is achieved with airtight adhesive tape. Shipping is Free.
Qty:

Experience Superior Insulation

  • Exceptional R-Value of 4.3 per inch
  • Fast, easy and safe installation with no special protective clothing required.
  • Class A rated for Fire Resistance and Smoke Development.
  • Treated with boric acid to resist insects.
  • Does not support the growth of mold.
  • Proper air sealing is achieved with airtight adhesive tape


Simply stuff Havelock Wool inside all gaps around windows and doors. Proper air sealing is achieved with airtight adhesive tape.

Important Shipping Information

  • Free Fedex shipping is included with each box.
  • Allow up to 5 business days for your package to arrive once ordered.
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average rating 5.0 out of 5
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100% of reviewers would recommend this product to a friend
1 Review
Reviewed by Stepha
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Great product.

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