Buildings For Fiberglass BattInsulationThe 21st Century Installa polyethylene ground cover on the earth floor of houses with crawl Rigidfoaminsulationhas a higher R-value per inch WALLINSULATIONInteriorExterioror no vapor barrier… Read Document
plan to install the fan. Make sure the area is free of obstructions such as ductwork and plumbing. Move the insulation, electrical wiring, and other obstacles away from the area. (Be sure to wear long sleeves, work gloves, and a dust mask if you'll be working with fiberglass insulation...