Sealing around fire sprinklers in cathedral ceiling
I have a vaulted, insulated, cathedral ceiling in warm California (zone 3) and code required firesprinklers for my tiny guest house (5 total). My piping and sprinkler heads are installed in the center of my 2×12 bays, which will be filled with R-38 fiberglass batts. I have another R-18 of rigid insulation above the roof sheathing. Once insulation is in place, I will install drywall. The firesprinklers have covers for them (similar to photo) with fusible links that will open in extreme temperatures.
I read the article “Wasting Energy or Catching Fire” which recommends placing sprinklers in interior soffits, or interior walls, but this is not an option for me.
Has anyone had experience or recommendations on how to seal around these sprinkler heads & covers in a cathedral ceiling?
Thanks for any recommendations!
GBA Detail Library
A collection of one thousand construction details organized by climate and house part