Bathroom Insulation

Don't let chilly bathroom tiles ruin your morning routine. Our expert insulation services cover bathrooms, ensuring a warm and inviting space while helping control the moisture that bathrooms generate.

Moisture Control Comes First

A bathroom generates more humidity than any other room in the house, and that moisture will find any gap in the assembly. Closed-cell spray foam resists moisture and does not lose R-value when damp, which makes it a better choice than batt insulation in exterior bathroom walls and in ceilings below a cold attic.

• Exterior walls, especially behind showers and tubs
• Ceiling below an unheated attic
• Around bath fan housings and ducting
• Floor above an unheated crawl space or garage
• Pipes running through exterior walls

Privacy and Sound

Bathrooms are the room people most want soundproofed. Spray foam in the interior partition walls damps airborne sound noticeably, and open-cell foam is particularly effective here because its softer, more open structure absorbs sound rather than reflecting it.

Warm Floors and No Cold Spots

Sealing the floor assembly above an unheated space removes the cold tile problem that makes a bathroom unpleasant in January, and keeps the room at temperature between heating cycles instead of dropping the moment the fan runs.

Do It While the Walls Are Open

Bathrooms are stripped to the studs during a renovation and then closed up with tile and fixtures that are expensive to remove. That makes the renovation the only practical opportunity to deal with the exterior wall, the ceiling and the floor assembly. It is a small additional cost at that stage and a major one afterwards.

Bath Fans and Ceiling Penetrations

The bath fan is one of the most overlooked leaks in a house. Its housing usually sits in the ceiling below a cold attic, and the duct running from it often passes through unconditioned space. Sealing around the housing and insulating the duct run prevents warm humid air escaping into the roof space, where it condenses on the cold sheathing and can cause staining, mould and eventually rot.