Weatherization of Home
We use a blower door to check the pressure of your home. The blower locates any air bypasses. Once these air leaks are detected, we use either foam or caulking to seal the holes through the house.
Blown-in Attic Insulation
We use Nu-wool brand cellulose. Cellulose is blown into attics to varying thicknesses. We recommend a total of 12" above drywall (R-38). Most older homes need only an upgrade of insulation (6–8").
Side-wall Insulation
We blow cellulose through a 1" opening in sidewalls of an existing home. The sidewalls can be wood, aluminum, or vinyl. A 5/8" opening through the brick mortar joints can be used for brick siding.
Wet-spray Insulation
We spray a cellulose mixture into the wall cavities of a home. The cellulose is scrubbed flush with the wall studs. Then, the drywall is placed over the filled wall cavity. This method is used mainly for new homes or remodel work. We do not recommend wet-spray on crawl walls.
Polyurethane Foam
We use a closed-cell foam, primarily applied to crawl spaces. We foam the bandjoist downward to 2 feet below the exterior ground level. Normally, the foam is about 4 feet in depth with a thickness of 1" to 1½". We also use closed-cell foam to spray roof decks, pole barns, and exposed metal roofs. Some builders apply a ½" thickness in the wall cavities of new homes. Then, they fill the rest of the wall cavity with other insulation, such as cellulose.
