pressure treated lumber and wet service factor

Where can I find guidance on the appropriate use of the wet service factor with No.2 southern pine wood floor joists that have been pressure treated?

The raised floor will be part of an under-roof open pavilion. What might I expect the in-service moisture content to be for PT lumber in this condition?

I am reading a 1994 study by Winandy of the USDA Forest Service that seems to suggest that the use of Cm with treated wood may be overly conservative in some cases.

 

Thanks.

 

Christopher Banbury, PE

President

 

Ark Engineering, Inc.

PO Box 10129, Brooksville, FL 34603

22 North Broad ST, Brooksville, FL 34601

Phone: (352) 754-2424

Fax: (352) 754-2412

www.arkengineering.net