I am building two patio covers using 2×6 for rafters
spaced at 24″ with a 3:12 pitch , one has a rafter span
of 10′ the other 8′, they are covered with 1×8 shiplap
and 3/4 plywood. My question is what is the maximum
weight per square foot of tile that I can install on
top of the covers? Can I install a tile with 7.2 lb psf
for the roof?