The Energy Star site is your safest bet for information on how to get the credit. Energy Star has been pretty flexible on what it allows for this credit:
- Blow-in fibers
- Rigid boards
- Expanding spray
Products that reduce air leaks also qualify:
- Weather stripping (such as fabric, foam, or metal to provide a seal)
- Spray foam in a can, designed to air seal
- Caulk designed to air seal
- House wrap
Installation isn’t covered.
Don’t rely solely on contractors who may not know the details or who promise their products will get the credit in order to make a sale.
Read on to learn more: