Insulating Outside Bathroom Walls

Buy unfaced friction fit batts and seal the walls with a 4 mil poly vapor retarder.

Insulating outside bathroom walls.

If warm moist air from inside a house travels through the wall it will condense when it hits the cold sheathing on the outside. Insulating a bathroom proper insulation will help keep your bathrooms a comfortable temperature year round. The facing is a vapor retarder meant to slow the migration of water vapor through the wall. Tuck the insulation into the cavity snug against the top of the stud bay and edges flush with the.

Properly insulated bathroom reduces energy consumption and saves money. For narrow stud bays you have to trim down the batt s width. Seal the gap between the bottom plate of the wall and the floor with acoustical sealant or caulk. Use special airtight electrical boxes see photo tip 5 or seal the poly to the electrical box with acoustical sealant.

Press the poly into the sealant. Plan your bathroom insulating project in stages tackling one thing at the time. To accomplish this you have to insulate interior walls and hot water pipes to minimize heat loss. How to insulate behind shower walls new construction.

Bathroom projects need special consideration because of the humidity and moisture that bathrooms generate. Humidity problem can be solved by installing a vapor barrier around the walls and on the floor. Years ago people weren t as energy conscious as they are today and the cost to heat and cool was much. In the best case scenario you can insulate the wall behind the shower during initial construction at.

To do that lay a batt on the floor in. When moisture becomes trapped in walls mold and mildew can grow damaging your home and presenting a potential health danger.