Hanger Assemblies

cmsfire

This is my first post. I am a plumbing & fire sprinkler contractor.
Is there a code to protect insulated copper water pipe in reference to hanging?

I have 3 lines to run. 3/4" HW & HWR, and 1" CW. Spec's indicate 1" thick armafllex insulation on the hot and 1/2" on the cold. I plan on installing the closed cell insulation on the pipe before hanging. My question is, are saddles required per code to prevent the insulation from breaking down, or are standard em-lock swivel hangers sufficient?

Thanks,
Christian Sinto, PE

Bjd

We just insulate the copper and then set the hangers, if you using A bands with grip locks you may have to go up a size for the insulation.

BJD