Blown Cellulose Vs Blown Fiberglass In Attic

When comparing blown in insulation both fiberglass and cellulose are nearly identical in price both costing around 0 70to 0 80per square foot for 6 inches of insulation. According to research done at the oak ridge national lab fiberglass loses up to 50 of its r value in very cold conditions. At 3 5 per inch of material the r value of blown in cellulose is 23 better per inch than fiberglass batts.

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Any insulation is better than no insulation.

Blown cellulose vs blown fiberglass in attic.

You can find high r value insulation produced in both fiberglass and blown cellulose. Cellulose resists blowing when installed fiberglass tends to blow around stick to the attic ceiling and drift. Dry blown cellulose will characteristically settle and sag in place reducing its r value. Wet blown cellulose is also subject to similar contamination too.

But which one should you pick. As a recycled paper product cellulose is prone to absorb moisture that can cause wood rot and mould. Advantages and disadvantages of fiberglass. In most houses around atlanta the choice of insulation material comes down to fiberglass vs.

The higher the r value the more efficient it is. With that said most homeowners agree that blown cellulose is slightly more efficient due to the face that it blocks more air than fiberglass. Making cellulose a better choice for homes in northern climates. Both types of insulation can you know insulate.

Fiberglass batts however are less expensive costing on average 0 30to 0 40a square foot for 6 inches of insulation. If you ve got bare uninsulated areas on the floor of your attic getting some kind of insulation in there is a must. Fiberglass is the most common. Blown in cellulose installer benefits local source provides consistent deliveries.

Cellulose produces much less static than fiberglass. Cellulose is the second most common.

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