Insulate Exterior Bathroom Wall
Press the poly into the sealant.
Insulate exterior bathroom wall. Another path is foam pipe insulation which will keep pipes warmer during cold months. A well insulated home keeps everyone comfortable and happy. Bathroom projects need special consideration because of the humidity and moisture that bathrooms generate. Filling walls with a fluffy layer of fiberglass insulation is one of the easiest and least expensive ways to make your home more energy efficient.
Seal the gap between the bottom plate of the wall and the floor with acoustical sealant or caulk. Un faced batt type insulation with caulked joints for air sealing would allow for any moisture within the wall cavity to dry to the exterior. During this phase the stud spaces. Use special airtight electrical boxes see photo tip 5 or seal the poly to the electrical box with acoustical sealant.
In exterior walls kraft faced fiberglass insulation helps control temperature and humidity inside the structure. In the best case scenario you can insulate the wall behind the shower during initial construction at the same time you insulate the rest of the exterior walls. All it takes is a utility knife a straightedge and a little patience to make sure the insulation completely fills the stud cavity side to side and top to bottom without being overly compressed. Sprayed insulation such as cellulose or foam are usually smarter choices than fiberglass for your bathroom.
It will be cheaper on the wallet too. When moisture becomes trapped in walls mold and mildew can grow damaging your home and presenting a potential health danger. Insulating a bathroom proper insulation will help keep your bathrooms a comfortable temperature year round. Buy unfaced friction fit batts and seal the walls with a 4 mil poly vapor retarder.
If the whole batt cannot fit inside the cavity cut off the excess material with a scalpel knife leaving a couple of centimeters over on each side to ensure a tight fit. Because fiberglass tends to be more porous moist air is likelier to flow through it.