Exterior Wall Insulation Bathroom

Check behind knee walls which are walls between living spaces and the garage or attic.

Exterior wall insulation bathroom.

Two by four 2x4 stud walls with true 4 inch depth. Check garage walls and ceilings that are adjacent to conditioned spaces. Use r 19 or r 21 kraft faced fiberglass insulation for two by six 2x6 walls. According code common sense energy star and the laws of physics if you do not insulate and air seal exterior walls behind tubs and showers before installing the tub shower then they will be cold leaky parts of the house which will waste energy sap comfort and grow mold.

Bathrooms create a lot of hot humid air. Measure and cut the fiberglass batt for an exact fit. Add about 1 4 in. Jm kraft faced formaldehyde free fiberglass insulation offers r values ranging from r 11 to r 38 is ideal for moisture control in exterior walls and provides excellent temperature and noise control.

The short wall of the tub will be on an outside wall that currently has batt faced insulation. Every gap and compressed batt leaves a path for heat or cold to escape. Turn off the electricity then remove an electrical outlet cover for a view of exterior insulation. Sprayed insulation such as cellulose or foam are usually smarter choices than fiberglass for your bathroom.

According to the roxul site a vapor barrier is only required for external walls. Place the insulation slabs or batts inside the wall cavity between the studs. I am remodeling my bathroom with a new alcove tub. 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.

Exterior walls and floors. Use the discarded material to fill gaps nooks and crannies. Another path is foam pipe insulation which will keep pipes warmer during cold months. Getting everything back together and have used the roxul stone mineral insulation for the walls comfort on one exterior wall and safe n sound for the inside walls and good ol pink panther faced for the ceiling.

Is it necessary to change insulation to un faced or cut slits in the faced insulation on this exterior wall. Because fiberglass tends to be more porous moist air is likelier to flow through it. To the measurement to ensure a snug fit.