Is 1/2 inch plywood on Mobile Home considered thin?

Hi Im back :slight_smile:
Sooo an insurance hired engineer made a comment in his report
from his inspection of my mobile that the roof had thin plywood.
He made this assertion without seeing the actual wood thickness.
I have just found out for certain via a roofer that my roof plywood thickness
is 1/2 inch.
Firstly I would like to ask if this thickness is considered thin.
Also I am wondering if different thickness has been used in recent years on newer
mobile homes.
Mine was built in 1988.
Thanks for the info!

[quote=“Annietoo”]Hi Im back :slight_smile:
Sooo an insurance hired engineer made a comment in his report
from his inspection of my mobile that the roof had thin plywood.
He made this assertion without seeing the actual wood thickness.
I have just found out for certain via a roofer that my roof plywood thickness
is 1/2 inch.
Firstly I would like to ask if this thickness is considered thin.
Also I am wondering if different thickness has been used in recent years on newer
mobile homes.
Mine was built in 1988.
Thanks for the info![/quote]

He was probably assuming that it had 3/8" plywood which is common.

1/2" is thick enough, standard.

Thank you, that is good to know.

1/2’’ is the norm for a mobile home.

Yeah 1/2" will do the job and it pretty much minimum code most places. Although if I am doing a job where resheeting the whole roof is necessary I prefer to use 5/8 or greater, but otherwise 1/2" is fine.

The State of Maine’s code is 5/8’’ minimum for roof decking/sheathing.

Yes, 1/2" plywood is just fine for a roof.
Here in BC the code is 3/8" plywood or 7/16" osb.