darcar
Silver Member
- Joined
- Nov 12, 2009
- Messages
- 129
I cant seem to get a photo downsized enough to post it here but i will try to describe what I have...
A homeowner built a deck addition to the rear of an existing residential dwelling. Over the deck he built a roof that is supported by 6x6 posts and ties into the existing roof.
The decking materials are treated wood and the trusses and OSB are regular non treated type. The owner has left the underside of the trusses and OSB open and not protected by soffit or similar materials.
Section R317.1.3 of the 2012 IRC addresses protection of wood against decay in geographical areas .... exposed to weather without adequate protection from a roof, eave, overhang or other covering that would prevent moisture or water accumulation on the surface or at joints...
In Iowa we experience ALL types of weather throughout the year including moisture in winter and summer months.
The in-house argument is if the trusses and OSB need to be covered/protected.
The trusses will gray and the OSB will flake when subjected to the harsh Iowa seasons over the years.
Is there an APA reference manual that addresses OSB exposure to moisture ON THE UNDERSIDE?
Thanks for your help and I'll see if I can dupload these pictures
Thanks
A homeowner built a deck addition to the rear of an existing residential dwelling. Over the deck he built a roof that is supported by 6x6 posts and ties into the existing roof.
The decking materials are treated wood and the trusses and OSB are regular non treated type. The owner has left the underside of the trusses and OSB open and not protected by soffit or similar materials.
Section R317.1.3 of the 2012 IRC addresses protection of wood against decay in geographical areas .... exposed to weather without adequate protection from a roof, eave, overhang or other covering that would prevent moisture or water accumulation on the surface or at joints...
In Iowa we experience ALL types of weather throughout the year including moisture in winter and summer months.
The in-house argument is if the trusses and OSB need to be covered/protected.
The trusses will gray and the OSB will flake when subjected to the harsh Iowa seasons over the years.
Is there an APA reference manual that addresses OSB exposure to moisture ON THE UNDERSIDE?
Thanks for your help and I'll see if I can dupload these pictures
Thanks