During a bathroom renovation, plumber convinced me to move the shower/tub faucet to the opposite wall so it was easier to reach. Unfortunately the opposite wall is an exterior wall and the pipe now freezes. No issues with the sink/toilet on the other (interior) wall. Pipes are not wrapped in any insulation (even though I would've thought at minimum the hot pipe should be wrapped) and plumber says the freezing is the carpenter's issue for not adding insulation.
Besides letting the tub faucet drip when it's cold, what's the easiest way to remedy? Some options I can think of:
1) Remove trims and spray expanding foam insulation in the holes (great stuff?), but I think this would encase the entire pipe and make repairs more difficult and prevent interior heat from reaching the pipes
2) Remove trims and spray non-expanding foam insulation in the holes toward the outside wall only. Is there a specific brand/type of foam that should be used, would a few cans be enough, and could I cover enough to insulate using just the shower and trim holes?
3) Remove tiles, break the wall, and put in fiberglass insulation
Besides letting the tub faucet drip when it's cold, what's the easiest way to remedy? Some options I can think of:
1) Remove trims and spray expanding foam insulation in the holes (great stuff?), but I think this would encase the entire pipe and make repairs more difficult and prevent interior heat from reaching the pipes
2) Remove trims and spray non-expanding foam insulation in the holes toward the outside wall only. Is there a specific brand/type of foam that should be used, would a few cans be enough, and could I cover enough to insulate using just the shower and trim holes?
3) Remove tiles, break the wall, and put in fiberglass insulation