roof question.....i donno

[pmassie]

Ok.....

saw this and i wasnt sure (told client to further evaluate the condition because i really didnt know the answer)

the roof sheeting on the house seams a little thin looking at the edge of plywood where a ventilation duct was (see pic) i couldn't measure it because of the attic height (pitch was 14-12)

tell me if this thickness ( i would say about 5/16..??) is ok....or can you put thinner sheeting on a roof if it's a big slop???????????????

[Jeffrey R. Jonas]

What was the rafter spacing?

[Brian K. Smith]

Its 3 ply, ply wood...used all the time on roofs! I dont see no issues

[Brian K. Smith]

to add slope has nothiung todo with how thick your roof sheathing would be so you know...1/2" is the thinest you would install on a roof.

[Marcel Gratton]

Originally Posted by pmassie

Ok.....

saw this and i wasnt sure (told client to further evaluate the condition because i really didnt know the answer)

the roof sheeting on the house seams a little thin looking at the edge of plywood where a ventilation duct was (see pic) i couldn't measure it because of the attic height (pitch was 14-12)

tell me if this thickness ( i would say about 5/16..??) is ok....or can you put thinner sheeting on a roof if it's a big slop???????????????

Patrick,

That is 3/8 in. plywood and is within building practices with trusses spaced 24 inches for house build in Québec.

If it was waferboard, it would need to be 7/16 in. minimum.

Slope does not matter.

Cheers,

[pmassie]

thx all !! well ! i'll call my client