CRC 2016 R404.1.6 says minimum height above "finished grade" is 4" for masonry and 6" for concrete foundation walls.
CRC 2016 R317.1(5) says preservative treated wood siding, sheathing and wall framing on the exterior of a building is required when clearance is less than 6 inches from the ground or less than 2 inches measured vertically from concrete steps, porch slabs, patio slabs and similar horizontal surfaces exposed to the weather
R317.1 seems to indicate that the top of foundation can be minimum 2" above concrete and hardscapes. I can't think of any case where non p.t. wall framing and sheathing can be 2" from the ground therefore it seems these two codes are conflicting.
What is the code definition of "finished grade"? Does that mean soil surface or any surface including finished concrete?
CRC 2016 R317.1(5) says preservative treated wood siding, sheathing and wall framing on the exterior of a building is required when clearance is less than 6 inches from the ground or less than 2 inches measured vertically from concrete steps, porch slabs, patio slabs and similar horizontal surfaces exposed to the weather
R317.1 seems to indicate that the top of foundation can be minimum 2" above concrete and hardscapes. I can't think of any case where non p.t. wall framing and sheathing can be 2" from the ground therefore it seems these two codes are conflicting.
What is the code definition of "finished grade"? Does that mean soil surface or any surface including finished concrete?
