DIY Home Improvement Forum banner

Rim insulation in a tight spot

1181 Views 5 Replies 4 Participants Last post by  AllanJ
I have a an half-insulated rim joist (?) that the previous owner did a poor job on.

What do I need to do here? Just stuff some more R12 up in that hole and fill it?

See less See more
1 - 1 of 6 Posts
Generally, in freezing climates there should be no insulation between a water pipe within an exterior wall and the interior wall surface.

Ideally there should be a more or less (empty) triangular space with no insulation around the pipe, as wide at the interior wall as the pipe is deep behind. For a pipe that went straight through the rim joist and exterior wall to a hose bibb, the empty triangular or conical or sideways pyramid space would go all the way to the rim joist. Batt insulation would be run behind pipes in the wall with a triangular wedge section cut out for the pipe if desired to make the batt fit in the space better. Fill insulation should not be used around pipes in the wall or joists.
1 - 1 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.