How To Insulate An Outside Bathroom Wall

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

How to insulate an outside bathroom wall.

It s also a relatively easy option for diyers. The outside wall in my bathroom has old plaster and lathe covered by old fashioned thin printed paneling. Liquid barriers may also be used to prevent moisture from getting into the walls. Steps on insulation installation 1.

Use the discarded material to fill gaps nooks and crannies. Place the insulation slabs or batts inside the wall cavity between the studs. One hole per stud space is necessary. Buy unfaced friction fit batts and seal the walls with a 4 mil poly vapor retarder.

When moisture becomes trapped in walls mold and mildew can grow damaging your home and presenting a potential health danger. Install vapor barriers after the bathroom s plumbing electrical and insulation are complete. Theres a replacement window in the middle that needs framed out and the whole wall needs upgraded desperately. I dont know if i should tear out the plaster and lathe or cover it up and how to keep the winter cold from causing problems.

Weave loosely to fill the cavity but tightly enough so you won t have to compress the insulation when you install drywall. Press the poly into the sealant. When you reach the end of the wall cut off the insulation. Seal the gap between the bottom plate of the wall and the floor with acoustical sealant or caulk.

Handy homeowners can rent an insulation blower and drill holes in the wall above the shower to blow in fiberglass or cellulose insulation. To do that lay a batt on the floor in. To add soundproofing weave a continuous roll of fiberglass insulation between staggered studs using insulation designed for 2x4 walls. 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.

Proper insulation will help keep your bathrooms a comfortable temperature year round. The ceiling needs redone as well so the wall. Use special airtight electrical boxes see photo tip 5 or seal the poly to the electrical box with acoustical sealant.