How much will it cost to participate?

There is no cost to partner with EPA's Indoor airPLUS program. However, builders may have additional costs to construct Indoor airPLUS qualified homes. These costs vary due to many factors such as the builder's current construction practices, local building code requirements, and subcontractor and building material costs. The builder will usually also pay a home energy rating fee, which varies by rater and location.

• Why are the Indoor airPLUS Construction Specifications (Rev.01) not called Version 2?
• When are the Indoor airPLUS Version 1 (Rev. 01) changes effective?
• How can I use social media to help promote Indoor airPLUS?