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BobVila.com > Channels > HVAC > All Tips > Blown-in Insulation
 Blown-in Insulation
If you need to insulate your attic, blowing in cellulose insulation is an easy job you can do yourself by renting a machine at your local lumberyard. To install the insulation, blow the cellulose in up to the level of your floor joists. Cellulose is made from recycled newspaper and treated with Borax, a natural pest repellent and fire retardant. For best results, be sure to distribute the cellulose in an even layer. In an attic with two-by-six joists, you can achieve an insulation factor of R-19.
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