Requirements for Energy Star homes

摘要

Builders of Energy Star homes need to comply with the Thermal Bypass Checklist, a document that specifies air-sealing and insulation requirements for attic stairs. The EPA's Thermal Bypass Checklist Guide includes these directions: Staircases adjoining exterior walls, garages, or attics need complete air barriers throughout the framed assembly ... A common area missing an air barrier at staircase walls occurs at small areas under enclosed landings or bottom stairs. Once framed, staircases can be difficult to complete with insulation and air barriers so it is important to coordinate details with the framing subcontractor...