Fastening Strapping in a Bonfiglioli-Inspired Ceiling
Porch conversion to year round room.
Sprayed 4-5” of CCSF to underside of roof deck. Rafters are 2×8.
Plan to add 1.5-2” XPS strips to underside of rafters, then strapping, then 5.5” rockwool in the bays.
Should I use a framing nailer and 3.25” ring shanks to affix the strapping? Can the strapping stay parallel (on ends) of rafters or do I have to affix perpendicular to the rafters for the drywall install?
And can the drywall be fastened to just the strapping or should fasteners penetrate through the strapping and foam into the rafters?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part