Weatherizationis the process of sealingup drafts to prevent the loss of heat or conditioned inside air to the outside. The most effective weatherization practices include blower door directed air sealing (work is typically done in attics and basements) and then adding insulation inavailableopen c...
Watch out: We explain at BATHROOM VENTILATION CODES SPECS, installers should make the bath vent fan duct run through the attic (or any other space) as short as possible. To avoid unnecessary reductions in air movement through the bath vent exhaust system, avoid elbows and bends as much as ...