Adding a major addition to my house (in Seattle) and replacing all the old galvanized with PEX.
Interesting thing on insulation of the hot water supply lines. THe local plumbing regulations don't specifically require insulation. However, the Seattle Energy Code does. Requires 1" nominal thickness insulation for 1/2" nominal pipe.
A local plumber told me this insulation actually has to penetrate thru the studs. Does this make sense? Seems like this would be ok for 2x5 walls but would compromise existing 2x4 walls.
Interesting thing on insulation of the hot water supply lines. THe local plumbing regulations don't specifically require insulation. However, the Seattle Energy Code does. Requires 1" nominal thickness insulation for 1/2" nominal pipe.
A local plumber told me this insulation actually has to penetrate thru the studs. Does this make sense? Seems like this would be ok for 2x5 walls but would compromise existing 2x4 walls.
