Houston, TX Air Duct Cleaning Service & Insulation | Atticair
The cost to install foam board insulation varies widely based on project scope, material type, and labor. For a standard project, homeowners can expect to pay between $1,500 and $4,500, with an average range of $2 to $7 per square foot. Key factors influencing price include the R-value (thermal resistance) of the board, the size and accessibility of the area (walls, attic, basement), and regional labor rates. Rigid foam boards like polyiso or XPS are more expensive than fiberglass batts but offer superior air sealing and moisture resistance per inch. For a detailed look at applications and benefits in our local area, we recommend our internal article, Foam Board Insulation in Northside / Northline. Always get multiple quotes from certified professionals for an accurate estimate tailored to your home.
The cost to spray foam insulation for a 1000 sq ft area typically ranges from $1,500 to $4,000, with an average around $2,750. This wide range depends heavily on the type of foam used. Open-cell foam, which is less dense and has a lower R-value per inch, usually costs $0.44 to $0.65 per board foot, making it the more economical choice. Closed-cell foam, offering a higher R-value and moisture barrier, costs significantly more, typically $1.00 to $1.50 per board foot. The final price is also influenced by the desired R-value (thickness), the complexity of the installation (like attic obstructions or wall cavities), your geographic location, and the contractor's expertise. Always obtain multiple detailed quotes that include material, labor, and site preparation.
Insurance companies may hesitate to insure homes with spray foam insulation due to concerns over improper installation. If installed incorrectly, it can trap moisture within walls, leading to hidden rot, mold growth, and structural damage. Some older formulations also posed fire safety risks if they were not adequately coated with a thermal barrier. Insurers view these potential long-term, concealed damages as significant liabilities. However, many insurers will provide coverage if the installation was performed by a certified professional and includes proper documentation, such as a third-party inspection report. Homeowners should always ensure their spray foam installation is fully code-compliant and retain all records for their insurance provider.
The cost to spray foam a 40x60 building (2,400 sq ft of floor space) varies significantly based on the type of foam, desired R-value, and regional labor rates. For closed-cell spray foam, which provides a high R-value per inch and acts as an air and vapor barrier, you can expect a price range of $1.50 to $3.00 per board foot. For a building with walls and a ceiling, total board feet often exceed the square footage. A rough estimate for a basic application could range from $3,600 to $10,000 or more. Open-cell foam is less expensive, typically $0.44 to $0.65 per board foot, but requires more thickness for equivalent R-value. Always obtain multiple detailed quotes from certified installers, as proper installation is critical for performance and safety.
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