kimball gray Posted April 17, 2012 Report Share Posted April 17, 2012 crawlspace with intermediate columns. Plywood is used as shims. The plywood extends out past all points of contact with the joists. That is correct, no beams. All joists that are run from the foundation walls to the columns and intersected with hangers where at right angels to each other. Can plywood be an acceptable shim for the joist to rest on at the top of the columns? There is no metal between the concrete columns and the wood shims...I know.... Click to Enlarge 55.91 KB Link to comment Share on other sites More sharing options...
kimball gray Posted April 17, 2012 Author Report Share Posted April 17, 2012 I ask cause this is the result. A crushed plywood shim. I believe because of waaayyy toooo much moisture under the home. foundation vents are closed. Hvac ducts insulation has been chewed off by pets, dryer vent uninsulated in the crawlspace, etc... Click to Enlarge 55.05 KB Link to comment Share on other sites More sharing options...
kimball gray Posted April 17, 2012 Author Report Share Posted April 17, 2012 and the crushed shim, that dropped about 1/4 to 1/2 inch resulted in a horizontal crack upstairs between two door frames. The floor has a slope to it for about 2 feet towards this wall. Click to Enlarge 30.16 KB Click to Enlarge 56.01 KB Link to comment Share on other sites More sharing options...
Jim Katen Posted April 18, 2012 Report Share Posted April 18, 2012 The problem in your pictures has nothing to do with the fact that the shim is plywood. That's the least of the concerns. Link to comment Share on other sites More sharing options...
Denray Posted April 30, 2012 Report Share Posted April 30, 2012 What are the other concerns? Link to comment Share on other sites More sharing options...
Brandon Whitmore Posted May 1, 2012 Report Share Posted May 1, 2012 What are the other concerns? #1- moisture/ humidity Link to comment Share on other sites More sharing options...
Denray Posted May 1, 2012 Report Share Posted May 1, 2012 Hmm. Is that a puddle I'm seeing back underneath that ducting? My last inspection had that going on along with the LP siding action. Mine had all the joist bays filled tight with insulation. There was probably this going on too. Link to comment Share on other sites More sharing options...
Jim Katen Posted May 1, 2012 Report Share Posted May 1, 2012 What are the other concerns? Moisture No vapor barrier (moisture) Decay (the result of moisture, and no vapor barrier) Undersized header Poorly supported header Poorly installed joist hangers Crummy ducts Crummy wiring No insulation Kimball noted most of it. It's just odd that he seemed to focus on the plywood, which really isn't much of a problem in itself. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now