Blown Cellulose Vs Blown Fiberglass In Attic

Cellulose produces much less static than fiberglass.

Blown cellulose vs blown fiberglass in attic. But which one should you pick. You can find high r value insulation produced in both fiberglass and blown cellulose. Fiberglass is the most common. Cellulose is the second most common.

Dry blown cellulose will characteristically settle and sag in place reducing its r value. At 3 5 per inch of material the r value of blown in cellulose is 23 better per inch than fiberglass batts. As a recycled paper product cellulose is prone to absorb moisture that can cause wood rot and mould. With that said most homeowners agree that blown cellulose is slightly more efficient due to the face that it blocks more air than fiberglass.

Fiberglass batts however are less expensive costing on average 0 30to 0 40a square foot for 6 inches of insulation. Any insulation is better than no insulation. The higher the r value the more efficient it is. 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.

Wet blown cellulose is also subject to similar contamination too. Advantages and disadvantages of fiberglass. Making cellulose a better choice for homes in northern climates. Blown in cellulose installer benefits local source provides consistent deliveries.

Cellulose resists blowing when installed fiberglass tends to blow around stick to the attic ceiling and drift. If you ve got bare uninsulated areas on the floor of your attic getting some kind of insulation in there is a must.