Cost of Foam

• Foam insulation products for the ceiling in your house are generally more expensive than other types of insulating materials such as fiberglass and cellulose.
  
  

Common Uses

• Foam insulation products are commonly used in the ceilings of buildings where higher R-values are desired and where there are space limitations.
  
  

R-Values

• The resistance to heat flow measurements, or R-values, of foam insulation for ceilings range from R-4 to R-8 per inch of thickness, which is two to three times greater than for most other types of insulation of comparable thickness.
  
  

Air Infiltration

• Carefully installed foam insulation controls air infiltration from the attic space above the ceiling of your house more effectively than other types of insulation.
  
  

What It's Made of

• Foam insulation is usually made of polystyrene, polyurethane or polyisocyanurate.
  
  

How It's Installed

• Foam insulation is installed in the attic area directly above the ceiling as either a liquid or as a factory-made rigid foam board.