What helps reduce air infiltration?
FACT: Careful design and selection of building materials, along with good workmanship, can significantly reduce a new home’s air infiltration rates. Building materials such as building wraps and polyurethane vapor barrier films are specifically designed and installed to reduce air infiltration. And, good building practices, such as limiting the number of perimeter joints, use of caulking around window and door framing, and the use of weatherstripping around doors and windows, are the most widely used and proven means of reducing air infiltration. All these materials and practices are part of a “system” approach to reducing air infiltration.
