Sealing up a home’s building envelope is incredibly cost effective and energy efficient, which means you can save up money in the long run. To do so, the structure must be secure, air tight, and water tight. Components of the envelope includes walls, floors, doors, roofs, and windows. Not only is air sealing cost effective, it also can improve comfort as well as indoor air quality. Achieving a high level of air tightness can be difficult, as it requires more than just filling up visible holes!

 

Here are some of the ways air can enter your home:

 

  • Doors and Windows
  • Attic and Crawl Space
  • Electrical Outlets and Switches
  • Exhaust Fans
  • Vent Covers

 

From the interior, best ways to air seal large gaps is with expandable foam. For exterior however, you must hold back a small piece of the exterior sheathing where two modules join, and then the general contractor must insert a piece of sheathing that combines the space between the modules.

 

Be Aware!

 

Buying a home means attention to detail, especially when constructed indoors in a factory controlled environment. The thermal envelope is one of the most important things to owning an energy efficient and cost effective home.