Was called by a HO a few weeks ago to do some drywall repair. I was close by, so I stopped in for a look-see. He said the wife was having medical issues and they were told to get any mold out of the house.
Exterior side wall, one story, fireplace in the middle. Roof leaked at chimney flash;they let it go for a while then had it fixed. HO thought there was mold behind the wallpaper (there were some dark mildew spots) and then pointed out the termite damaged baseboard – termites were treated.
I stopped him and told him there was a good chance that whole was eaten up.
Friday I opened it up; most of the studs, sill and top plates, fiberglass kraft paper and what passed for sheathing at the time the house was built ( early 80’s) was damaged.
I don’t know what the sheathing stuff is called, it is 1/32″ thick heavy paper with foil on both sides, stapled to the studs. As far as I know it is not made anymore and would not use it if it would.
Problem is that I have to put up some kind of sheathing after I take off the siding- though not all the sheathing is damaged ~ 50 sf. Plan was to rip off 1/4 inch of the replacement 2x4s and use 1/4 plywood, covered in 30# felt so that it is flush with the undamaged original.
Any thoughts on this approach?
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Your approach sounds doable for a crummy situation, however, if the area to be repaired is substantial in size, I might consider suggesting to the client that you take this opportunity to deside the entire wall and add a continuous layer of real sheathing of some sort.
The cardboard sheathing is "Thermoply," IIRC.