How much does it cost to spray foam for 1500 square feet?

Author: Alvena Jacobson  |  Last update: Tuesday, February 11, 2025

The cost to insulate an attic is usually between $1.50 and $3.50 per square foot. This price can change depending on the attic's size and how easy it is to get to. For a typical 1,500-square-foot attic, you pay $2,250 to $5,250.

How do you calculate spray foam cost?

Find Price Using Board Feet Rate

After calculating the board feet, we can calculate the price. The average closed cell spray foam cost is $1.45 per board foot. For 300 board feet, it will cost $435 to insulate this wall with closed cell spray foam. The average open cell spray foam cost is $0.50 per board foot.

Is spray foam worth the money?

Spray foam insulation does cost more than traditional options, but over time it pays you back in energy savings, and you can't really put a price on the comfort of your family.

How many square feet will a 55 gallon drum of spray foam cover?

For open-cell spray foam, you can cover 50-100 square feet per gallon, also based on the thickness you want. A 55-gallon drum of spray foam can cover between 1,500 and 2,750 square feet. This depends on the foam type and how thick you apply it.

How to bid a spray foam job?

How to Bid Spray Foam Insulation Projects
  1. Know Your Foam. ...
  2. Measure the Whole Area. ...
  3. Calculate Board Footage. ...
  4. Establish Material Cost. ...
  5. Add Additional Costs. ...
  6. Put Together Your Bid. ...
  7. Lowering Your Bids Without Losing Profits.

Spray Foam Insulation Cost: Everything You Need To Know

What are the negatives of spray foam?

Spray foam insulation is a good insulator in terms of keeping a room warm or cool. But its many downsides outweigh the benefits. These include, making it more difficult getting a mortgage, potential health issues, environmental damage, ventilation issues and a lower home valuation.

Why is it hard to sell a house with spray foam insulation?

Some Buyers May Be Uncertain Of Spray Foam Insulation.

If they don't know the contractor who installed it, they may worry that the foam was installed by people who didn't know what they were doing. Other buyers have heard negative stories about spray foam insulation.

How many years does spray foam last?

Both types of spray foam insulation can last anywhere from 80 years to 100 years, with closed cell spray foam having a slight edge in terms of durability. For most families, this represents the lifetime of the house and then some!

What is the cheapest insulation?

It's essential to wear protective clothing and a mask when installing fibreglass insulation to prevent any health risks. Overall, fibreglass insulation is the cheapest and most effective insulation option available, making it a popular choice for homeowners and builders alike.

How do you calculate foam price?

Summary of Foam Pricing
  1. Calculate number of board feet: ...
  2. Find application in Foam Grades.
  3. Choose density which determines desired quality and durability.
  4. Choose firmness (feel of foam) in various density ranges.
  5. Multiply the total board feet by the price per board foot for the cost of your size.

How much does a 55 gallon of spray foam cover?

HOW MANY BOARD FEET DOES A 55 GALLON DRUM OF SPRAY FOAM COVER? The average yield of closed cell spray foam ranges from 4,300 - 4,500 sqft at 1" of depth. Open cell foam coverage ranges from 17,000 - 20,000 sqft at 1" of depth.

Where should you not use spray foam?

Directly against electrical wiring or fixtures: Spray foam insulation should not be applied directly against electrical wiring, fixtures, or recessed lighting unless they are rated for contact with insulation. Contact with insulation can cause overheating and pose a fire hazard.

Is it cheaper to spray foam insulation yourself?

Labor Costs: DIY Spray Foam Kits Can Save Money

You will pay for the labor of professional insulation, which may make a difference in the total cost of your project. But this is the same as hiring any professional: you pay for their expertise and skilled labor.

Will mold grow on spray foam?

It Can Lead to Mold

This often happens when the spray foam isn't installed correctly and space is left between the insulation and the wall, which allows moisture in and gives mold the perfect place to grow, unfettered.

What is the best alternative to spray foam insulation?

Instead of spray foam, Curtis recommends cotton denim insulation, which is typically made from industrial scraps.

Is spray foam a bad investment?

Spray foam insulation is expensive but can be an excellent investment for residential and commercial properties.

Is 2 inches of spray foam enough?

The thickness of your spray foam is based on the type of spray foam you've chosen for your application. So, yes, 2 inches of spray foam is enough in certain situations while using a particular type of foam, but it is not a universally accepted standard for sufficiency.

How do you estimate spray foam?

1. All spray foam is figured in an old lumber measurement called a board foot and one board foot = 12x12x1 inches. 2. So you figure the square footage of the walls and multiply that by the thickness (R-value) wanted in inches will give you the board footage needed.

How much do spray foam people make?

The estimated total pay for a Spray Foam is $61,621 per year, with an average salary of $54,338 per year. This number represents the median, which is the midpoint of the ranges from our proprietary Total Pay Estimate model and based on salaries collected from our users. The estimated additional pay is $7,283 per year.

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