What to place behind my lower T1-11 OSB Siding?
Posted: Fri Feb 03, 2017 12:02 am
We've had a bit of moisture lately out here in AZ and I notice some warping of my lower trim where the t1-11 siding meets the CMU block skirting. Upon inspection the trim disintegrated in my hands revealing water saturated siding on the lower 6" or so of the T1-11 OSB style siding. I opened up all the trim down that particular side of our Palm Harbor double wide to let it air out and put a fan on the worse part. I had a water restoration guy come out with his fancy moisture gages and thermal imaging and check it out and he recommended a sealer along the lines of Red Guard to create a membrane before I put new trim back on and re-caulk. It sounded good until I looked up Red Guard and see what it's really designed for and I lack confidence in this product for this particular situation. Instead I was thinking I might pry up a little on the siding and try to fish some tar paper up under the T1-11 so that it overhangs the rim joist and the filler 2x6 (kind of like a sill plate between the home and the block skirting). I figure that's probably better than slathering everything up with a paint like material... I don't know though. Any thoughts?
I guess the main concern for me is to prevent further damage to the rim joists (which are good for now) and the filler (sill plate) between the block stemwall and the home which is pretty much rotted out but serves no purpose to my eye other than to fill the gap between the cmu and home [???].
My other fear is that prying on the t1-11 to try to insert some tar paper may destroy the siding since the bottom 6" at some places has seen to much water and will likely crumble in my hands.
Thoughts are most welcome as I'm tackling this project this coming Saturday.
Thanks,
Brian
I guess the main concern for me is to prevent further damage to the rim joists (which are good for now) and the filler (sill plate) between the block stemwall and the home which is pretty much rotted out but serves no purpose to my eye other than to fill the gap between the cmu and home [???].
My other fear is that prying on the t1-11 to try to insert some tar paper may destroy the siding since the bottom 6" at some places has seen to much water and will likely crumble in my hands.
Thoughts are most welcome as I'm tackling this project this coming Saturday.
Thanks,
Brian