air tight

Air tight is the most critical element of green building design. The easiest way to be air tight in an existing home is using caulk at every gap and crack between building materials. The top and bottom plate of a wall, electrical outlets, doors and windows, all penetrations need...

Ask any seasoned carpenter (that does not understand building science) and they are likely to tell you “don’t build too tight, you want your house to breathe.” This is a tried and true “because that is the way we always do it idea.”   Early in...