What number should I use for cast iron and cast glass sidewalk skylights?
MasterSpec includes these systems in 04 2300 “Glass Unit Masonry.”
I have used 04 2515 “Metal-Supported Glass Unit Masonry Panels” which is consistent w/ MasterFormat 04 2513; or 04 2515 “Glass Flooring Systems” when the applications are primarily interior.
I have also used 08 4439 “Horizontal Structural Glass Assemblies” for skylights & other exterior applications.