Insulating Outside Bathroom Walls

Seal the gap between the bottom plate of the wall and the floor with acoustical sealant or caulk.

Insulating outside bathroom walls.

Years ago people weren t as energy conscious as they are today and the cost to heat and cool was much. Properly insulated bathroom reduces energy consumption and saves money. Buy unfaced friction fit batts and seal the walls with a 4 mil poly vapor retarder. To accomplish this you have to insulate interior walls and hot water pipes to minimize heat loss.

If you are installing fiberglass insulation in outside walls pay attention to the paper facing. Use special airtight electrical boxes see photo tip 5 or seal the poly to the electrical box with acoustical sealant. In the best case scenario you can insulate the wall behind the shower during initial construction at. The facing is a vapor retarder meant to slow the migration of water vapor through the wall.

Steps on insulation installation 1. Plan your bathroom insulating project in stages tackling one thing at the time. What needs to be insulated. 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. Bathroom projects need special consideration because of the humidity and moisture that bathrooms generate. Press the poly into the sealant. If warm moist air from inside a house travels through the wall it will condense when it hits the cold sheathing on the outside.

Humidity problem can be solved by installing a vapor barrier around the walls and on the floor. For narrow stud bays you have to trim down the batt s width.