CPVC mudsill under framed wall? 1

[Smith22]

Shed construction an in an area that gets washed out with water flow occasionally. Didn't want to use PT sill and sill gasket but instead use a CPVC trim under the 2x6 wall (with a bottom plate). Best I can tell, PT 2x6 has a compressive strength of 850psi and the CPVC trim is about 1,000 PSI.

Any issue with using this CPVC capillary break in lieu of the sill gasket? I realize it will be more expensive, but I really wanted a waterproof connection to the slab.

Thanks.

 

[XR250]

Probably OK for a shed. FWIW, the compressive strength of the lumber is less than 1/2 of what you have stated. Might want to add some extra anchor bolts. Why not build a masonry or concrete stemwall on the slab?

 

[Smith22]

Thanks. So PT is less than 500psi?

Thought about a stem wall but HOA didn't approve it built like that.

 

[XR250]

Most framing lumber is about 400 PSI-ish perp to grain.