Hoosier Spray Foam

Spray Foam Insulation in Westfield, IN

Open-cell and closed-cell spray foam for homes, additions, attics, walls, and new construction across central Indiana.

Why Spray Foam for Indiana Homes?

Indiana gets hot, humid summers and cold winters. Traditional fiberglass and cellulose leave gaps and settle over time. Spray foam expands to fill every crack and cavity, creating a continuous air seal that dramatically reduces drafts, energy loss, and moisture movement.

Whether you’re building new, remodeling, or just tired of high utility bills and uneven temperatures, spray foam is one of the highest-performing upgrades you can make.

Open-Cell vs Closed-Cell

Open-Cell Spray Foam

  • • Lower cost per board foot
  • • Excellent sound control
  • • Great air seal
  • • Ideal for interior walls & attics in many cases
  • • Vapor permeable (can dry if wet)

Closed-Cell Spray Foam

  • • Highest R-value per inch
  • • Acts as a vapor barrier
  • • Adds structural strength
  • • Best for rim joists, crawlspaces, exterior walls, metal buildings
  • • Resists water absorption

Common Spray Foam Applications

  • Attic floors and roof decks (unvented attic assemblies)
  • Rim joists and band joists
  • Exterior and interior wall cavities
  • Crawlspaces and basements
  • New construction and room additions
  • Pole barns, shops, and metal buildings

Longer guides: why open-cell should not go on Indiana exterior walls, blown-in vs spray foam, and spray foam cost.

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Common questions

Open-cell or closed-cell — which do I need?
Closed-cell is higher R-value per inch, a vapor barrier, and the usual choice for rim joists, crawlspaces, and metal buildings. Open-cell costs less per board foot and is often used in attics and interior walls. We recommend based on the building.
Do you insulate more than attics?
Yes. Walls, rim joists, crawlspaces, basements, additions, new construction, pole barns, and shops.