Ground Contact Lumber
Ground Contact Lumber
(OP)
I am working on a deck job where the inspector claims that ground contact PT lumber (0.4 lb/ft^3 ACQ) should have been used in this case (see attached pic) in lieu of standard PT lumber (0.25 lb/ft^3 ACQ. I guess he feels that water will get trapped in there causing continuous contact with fresh water. What are your thoughts?
Thanks in advance.
Thanks in advance.






RE: Ground Contact Lumber
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RE: Ground Contact Lumber
The concrete was cured for a week before the joists were installed.
RE: Ground Contact Lumber
RE: Ground Contact Lumber
RE: Ground Contact Lumber
This is a nice little article on the subject from Simpson, but it is geared towards protecting steel connectors from the PT chemicals, not moisture protection of wood.
http://www.strongtie.com/ftp/bulletins/T-PTBARRIER...
RE: Ground Contact Lumber
RE: Ground Contact Lumber
RE: Ground Contact Lumber
Dik
RE: Ground Contact Lumber
I definitely would try to get some plate steel between the wood and concrete. A Simpson standoff connector would have been much better to use here rather than the detail used. But that is hindsight. Just do not use this detail in the future. Use a metal connector with a bearing plate.
Mike McCann
MMC Engineering
RE: Ground Contact Lumber