How Green Is Denim Insulation?

Posted on July 15, 2008
Tag(s): Green Building, Energy | | Email this

cotton_insulation.jpgYesterday, I wrote about the green merits of cellulose insulation, and today I’ll uncover the benefits of recycled denim insulation. It comes in easy-to-handle batts sized to fit snugly into the framing of standard walls and ceilings.

Denim insulation batts have extremely effective sound absorption and thermal performance. The R-value is 3.4-3.7 per inch. In 2×4 framing, it rates R-13. In 2×6 framing, a R-19 value is present. It gives a better performance than fiberglass at low temperatures and windy conditions.

Made up of 85% post-industrial (factory scraps) recycled natural denim and cotton fibers, denim insulation is also 100% recyclable. 10% consists of a boron-based fire retardant which impedes growth of fungus, mold, and resists pests. Boron is a low-toxic, naturally-occurring mineral that is mined in the deserts of California and elsewhere. The remaining 5% is polyolefin fibers that are used as the glue that holds the batts together.

It takes less energy to manufacture than other types of traditional insulation, contains no chemical irritants, and is easy to install by homeowners.

Source: Ecohaus

Comments

One Response to “How Green Is Denim Insulation?”

  1. chris dzisiak on August 13th, 2008 1:36 pm

    What is the price of this insulation on a per m3 basis
    how heavy is it per a volume?
    where can I buy it, in Canada?
    How is it sold,ie how many bats per package of say R19 product?
    Thank you for your time.
    Chris

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