There are four main types of insulation: batt, blown-in (loose fill), rigid board and spray foam.Each has its advantages and limitations, but under the right circumstances, each can meet a ...

Long-lasting: Spray foam insulation doesn’t break down and collect in the bottom of a stud bay like spray-in insulation or batts might. This material is sticky when sprayed, expands, and then ...

Spray Foam Insulation TypeCost per Board FootPolyurethane$0.44 to $1.50Soybean$1.50 to $3Vegetable oil$1.50 to $3Water-based$0.50 to $2.50 Polyurethane Most spray foam insulation on the market ...

On walls with finished surfaces, blow-in cellulose insulation or spray foam is more commonly used to add insulation. Attics : Thick batts or rolls of fiberglass insulate the attic by preventing ...

Batts must be carefully trimmed to fit snugly around vents to retain their R ... Open-cell spray-foam insulation is roughly $1 to $1.25 per square foot and closed-cell spray foam is about $1.25 to ...