Start by drilling holes at the top of each wall cavity. Next, insert the insulation hose into these holes. As you fill the cavity, gradually pull the hose out to ensure even distribution of the insulation material. Maintain a steady pace while filling to prevent blockages. Continue filling each cavity until you encounter resistance, indicating that the space is fully insulated.
Attic insulation, especially fiberglass, should be replaced every 15-20 years, particularly if it has been exposed to moisture or mold.
R13 insulation is commonly used in exterior walls, floors, and crawl spaces where moderate insulation levels are needed.