HUMBLE REQUEST FOR KNOWLEDGE:
I'm working on an update to my 2009 IRC deck code book to republish it for the 2018 and 2021 edition. I am working on the termite protection portion and I don't want to be vague again like I was a decade ago. I simply have no personal or professional experience with termites. My commentary in the book will be alongside the IRC text, so I am not repeating everything in the IRC. I am only highlighting issues related to the various code subject that need to be highlighted. So I have two questions for those of you with more termite experience.
1) What issues, problems, oversight, misunderstanding, etc do you see in application related to termite protection of decks? I am speaking in reference to Section R317. It is my assumption that preservative treated lumber is pretty much what everyone uses for this protection as opposed to the other options in 317...but as I said... that is an assumption...
2) I cannot find any pointer in the IRC to Figure R301.2(7). I thought it would be in footnote C of Table R301.2(1) for geographic and climatic design criteria, but it's not there. The footnote simply refers to "local experience", not the map. So... what points to the map? Generally, figures and tables are referenced by a code section. It seems odd to have a figure just hanging out there and disconnected from the body of the code.
Thanks in advance for your help. I know what I know and don't know, and while I know decks very well, I don't know termites at all.
I'm working on an update to my 2009 IRC deck code book to republish it for the 2018 and 2021 edition. I am working on the termite protection portion and I don't want to be vague again like I was a decade ago. I simply have no personal or professional experience with termites. My commentary in the book will be alongside the IRC text, so I am not repeating everything in the IRC. I am only highlighting issues related to the various code subject that need to be highlighted. So I have two questions for those of you with more termite experience.
1) What issues, problems, oversight, misunderstanding, etc do you see in application related to termite protection of decks? I am speaking in reference to Section R317. It is my assumption that preservative treated lumber is pretty much what everyone uses for this protection as opposed to the other options in 317...but as I said... that is an assumption...
2) I cannot find any pointer in the IRC to Figure R301.2(7). I thought it would be in footnote C of Table R301.2(1) for geographic and climatic design criteria, but it's not there. The footnote simply refers to "local experience", not the map. So... what points to the map? Generally, figures and tables are referenced by a code section. It seems odd to have a figure just hanging out there and disconnected from the body of the code.
Thanks in advance for your help. I know what I know and don't know, and while I know decks very well, I don't know termites at all.