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Hello All,
I am small residential contractor in Michigan. Currently working on an upstairs renovation of a 80 year old house. We are gutting and remodeling 3 bedrooms.
The flooring for the entire upstairs appears to be 4" doug fir, or pine. It is stained and solid, but badly scratched etc. It will not be refinished, the client wants carpeting throughout.
But here's the challenge: We ran a string across approx 30' (entire width of the second floor) and in some areas, the sag is as much as 1 5/8". Yes, that is not a typo. In fact in one area, the floor sags that much in a 10' run.
I looked on the Ardex web site, and even wrote them an email, but heard nothing back. Their GS 4 product, when installed over their primer is allegedly ok for wood floors, but I suspect that is for plywood, or OSB flooring, not 80 year old strip flooring, but I would be glad to hear otherwise.
The sag cannot be corrected from below. We are in the process of installing new pocket door framing, and are doing our best to determine where best to set the door bottom, and consequently the framing height...we can always cut a door down later, but adding length to it is not so easy.
I've heard of guys using asphalt roof shingles in a situation where the covering will be carpeting, but I've never tried it, and in this case, wow, we'd need a lot of shingle and it would be considerable weight added.
I suppose if the client insisted on a solution, we could pull up all the old strip flooring, shim on top of the old diagonal 1-by sub flooring, and come back on top with new t & g ply/OSB, but my guess is that would be a budget breaker.
"They don't build 'em like they used to" we ofter hear to which I say "Thank God." The house is cute, but sooooo poorly engineered is frightening.
Sorry for the long note, I figured I'd register here and see if any of you floor Pros had any ideas.
Scratching head in Michigan
thanks,
Chris
christopher31322 at aol dot com
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