u/sp200k

Hi Everyone,

I'm planning to replace some old fiberglass insulation in the attic that has been compressed and missing entirely in some places.

Looking at Rockwool I only see it sold in the unfaced variants at the local big stores. Ghatgpt says it is totally fine to use unfaced rockwool in the attic but I'm not sure if to trust it?

Additionally I plan to cover with some plywood for some storage space - can this affect the insulation values?

4-A Climate Zone (NYC)

Unconditioned attick

Thank you