
Item details | Qty | Low | High | |
Blown-In Cellulose Insulation Debris Dis ... | 534 square feet | 0.4134375 | 0.4703125 | |
Unused Minimum Labor Balance of 2 hr(s) ... | ||||
Totals - Cost To Install Blown-In Cellul ... | Totals - Cost To Install Blown-In Cellul ... | |||
Average Cost per Square Foot | Average Cost per Square Foot | Average Cost per Square Foot |
What is the average cost of blown insulation?
The average cost of blown-in insulation to achieve an R-value of R-38–R-49 is $1,665 with most homeowners spending between $874 and $2,156 or $1.59 per square foot. This price does not include air sealing and ventilation which costs $350 to $1,500. Why Use Blown-In Insulation?
How much blown insulation do I Need?
- Measure the outside of your home.
- The interior attic space may differ (e.g., additions, varying levels of insulation). Separate into smaller spaces from the largest area.
- Multiply the length and width of each area.
- (A + B + C) ÷ 144 = total square footage.
Is fiberglass insulation better than cellulose?
When it comes to air infiltration cellulose is a better choice because it has 38% better air infiltration than fiberglass. Cellulose properly insulates the attic because it forms a dense continuous mat and keeps the air moving within the insulation. You can try Ceramic rope instead of fiberglass. 20 views
Is cellulose better than fiberglass?
In most situations, we prefer the air and heat flow resistance of cellulose over that of fiberglass. At 3.5 per inch of material, the R-value of blown-in cellulose is 23% better per inch than fiberglass batts!

How much does it cost to insulate a $2000 sq ft house?
Cost to Insulate a HouseHome Insulation CostsNational average cost$4,500Average range$3,000-$7,000Low-end$2,000High-end$30,000Jan 24, 2022
How much blown-in insulation do I need for 1000 sq ft?
On the insulation manufacturers label on every bag you'll find that for an R-25 you'll need 28 bags per 1000 sq ft. So if you have 2100 sq ft, take 28 x 2 = 56 bags for 2000 sq ft.
How much does it cost to insulate an attic with cellulose?
Cellulose: A more eco-friendly material made of recycled newspaper and cardboard, cellulose insulation costs about $0.33 per square foot, which equates to about $160 in material costs for a 500-square foot attic.
Is cellulose insulation expensive?
When comparing blown-in insulation, both fiberglass and cellulose are nearly identical in price, both costing around $0.70 to $0.80 per square foot for 6 inches of insulation. Fiberglass batts, however, are less expensive, costing on average $0.30 to $0.40 a square foot for 6 inches of insulation.
Can you put too much blown insulation in your attic?
Can you over insulate your attic? The answer is yes! Past a certain point, insulation in a vented attic will do more harm than good. In most of the United States, achieving an R-Value of 38 is more than sufficient.
How thick should blown-in insulation be?
When blown into attics and wall spaces, loose-fill fiberglass offers an average R-2.5 thermal value per inch (the higher the number, the greater the insulating effect). You'd need a thickness of about 7.5 inches of insulation to match the insulating value of a batt of R-19 insulation (R-19 is a common batt value).
What is the cheapest blown-in insulation?
FiberglassFiberglass is the least expensive option and runs about $0.50 to $1.10 per square foot, while cellulose comes in around $0.60 to $2.30 per square foot, with wet-spray cellulose at the top of that price range. Rock wool insulation ranges from $1.40 to $2.10 per square foot.
Is blown-in insulation cheaper than rolls?
Blown-in insulation is typically more expensive than rolled insulation. However, this difference isn't by that much. Blow-in insulation can cost between $1 to $1.50 per square foot. Rolled insulation, on the other hand, can be purchased for well under $1 per square foot.
How many inches of blown insulation is R30?
10.25”Fiberglass ChartR-ValueThicknessBags / 1000 Sq FtR4916.25”22.6R4414.75”20.1R3812.75”16.8R3010.25”13.01 more row
Which is better blown fiberglass or cellulose?
At 3.5 per inch of material, the R-value of blown-in cellulose is 23% better per inch than fiberglass batts! According to research done at the Oak Ridge National Lab, fiberglass loses up to 50% of its R-value in very cold conditions; making cellulose a better choice for homes in northern climates.
How long will cellulose insulation last?
30 yearsCellulose Insulation--Made from recycled paper, this insulation does a spectacular job of keeping the house temperature controlled. With a lifespan that can last up to 30 years, it's a green and effective choice.
What type of blown-in insulation is best?
FiberglassFiberglass, cotton, and mineral wool can all work as loose-fill insulation material, but the far and away top choice for blown-in insulation is fiberglass. Contrary to batts insulation, blown-in fiberglass insulation is perfect for filling in tight voids around wiring, pipes, or any area with awkward framing.