Jobsaver
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I am in the habit of requiring a minimum 8.5" insulation cavity for portions of rafter cavities formed where the rafter acts as the ceiling joist, (cathedral ceilings). In the examples of a bonus room where a portion of the ceiling is cathedral, or a tray ceiling incorporates rafters to form portions of the tray, I am allowing a furr-out of a 2X6 rafter with a 2X4 to achieve the 8.5" cavity.
(I require 8.5" to achieve minimum R30 and room for baffles).
Any objections? And, what is the best way to secure the 2x4 furring to the rafters?
(I require 8.5" to achieve minimum R30 and room for baffles).
Any objections? And, what is the best way to secure the 2x4 furring to the rafters?