Insulating An Exterior Bathroom Wall

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.

Insulating an exterior bathroom wall.

Insulating a bathroom proper insulation will help keep your bathrooms a comfortable temperature year round. That will reduce its r value. Sprayed insulation such as cellulose or foam are usually smarter choices than fiberglass for your bathroom. Another path is foam pipe insulation which will keep pipes warmer during cold months.

Look for insulating pre cut jackets or blankets with an insulating value of at least r 8. 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. Adding insulation to your water heater can reduce standby heat losses by 25 to 45 percent. Insulate water heaters to prevent costly energy loss.

Use special airtight electrical boxes see photo tip 5 or seal the poly to the electrical box with acoustical sealant. Use the discarded material to fill gaps nooks and crannies. Insulating interior bathroom walls. Because fiberglass tends to be more porous moist air is likelier to flow through it.

Tuck the insulation into the cavity snug against the top of the stud bay and edges flush with the studs. Thermalwall ph rigid eps insulation board for insulating the exterior walls of homes the advantages are plenty here panels are between 4 5 inches and 8 inches thick the exterior insulation is continuous and they can be attached with 6 inch 10 screws from 4 to 6 inches long. Weave loosely to fill the cavity but tightly enough so you won t have to compress the insulation when you install drywall. Insulate your attic outer walls and crawl space first as these areas have the most heat transfer.

The batt should not be tightly compressed against the studs. When moisture becomes trapped in walls mold and mildew can grow damaging your home and presenting a potential health danger. Buy unfaced friction fit batts and seal the walls with a 4 mil poly vapor retarder. Seal the gap between the bottom plate of the wall and the floor with acoustical sealant or caulk.

Press the poly into the sealant. Bathroom projects need special consideration because of the humidity and moisture that bathrooms generate. When you reach the end of the wall cut off the insulation.