Insulating Outside Bathroom Walls

Bathroom projects need special consideration because of the humidity and moisture that bathrooms generate.

Insulating outside bathroom walls.

To accomplish this you have to insulate interior walls and hot water pipes to minimize heat loss. Use special airtight electrical boxes see photo tip 5 or seal the poly to the electrical box with acoustical sealant. The facing is a vapor retarder meant to slow the migration of water vapor through the wall. Seal the gap between the bottom plate of the wall and the floor with acoustical sealant or caulk.

For narrow stud bays you have to trim down the batt s width. If you are installing fiberglass insulation in outside walls pay attention to the paper facing. Buy unfaced friction fit batts and seal the walls with a 4 mil poly vapor retarder. If warm moist air from inside a house travels through the wall it will condense when it hits the cold sheathing on the outside.

In the best case scenario you can insulate the wall behind the shower during initial construction at. Humidity problem can be solved by installing a vapor barrier around the walls and on the floor. Plan your bathroom insulating project in stages tackling one thing at the time. Tuck the insulation into the cavity snug against the top of the stud bay and edges flush with the.

What needs to be insulated. Properly insulated bathroom reduces energy consumption and saves money. Steps on insulation installation 1. Insulating a bathroom proper insulation will help keep your bathrooms a comfortable temperature year round.

When moisture becomes trapped in walls mold and mildew can grow damaging your home and presenting a potential health danger. Press the poly into the sealant.