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I have always heard that you should use screws on any floor and know several builders who will not use OSB because it is cheap and doesnt last as well as plywood. I have also been told that using construction adhesive between the first and second layers can help too. I dont know that I’ve ever seen that though because many builders consider it overbudget and overkill.
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OK lets brainstorm on this one.
To avoid as many floor squeaks as possible, our company renails all subflooring prior to final flooring (hardwood, underlayments, carpet)installation. I use the phrase "renail" because we have been hand nailing with 2-1/2" ring-shank nails. I am qurious as to your opinions as to nails vs screws vs staples.
Our homes are framed using dimensional lumber, 2x10 first floor, 2x12 second floor, and 3/4" T&G OSB subflooring. Subflooring is glued and gun-nailed with ringshank nails during framing.
Heat is on prior to drywall, and subfloor moisture content is usually 10-12% at this time.
We are building in the Seattle area.
It is almost always WET!!
*On squesking sub floors I use screws. I don't due the whole floor, just the area with squeaks. when the squeks are gone & I can't see any apparent movement, I call it done.
*First off, I believe in doing a job the best and fastest way. Many are concerned only with speed and effiency. If you are having trouble with sqeeks, use screews. I recommend using a screew gun with an automatic feed system and extension so you can stand upright. It is nearly as fast as a nailgun. For wet locations, I would switch to plywood. I believe it holds up better to soakings.
*I have always heard that you should use screws on any floor and know several builders who will not use OSB because it is cheap and doesnt last as well as plywood. I have also been told that using construction adhesive between the first and second layers can help too. I dont know that I've ever seen that though because many builders consider it overbudget and overkill.
*For complete squeak free subflooring, you should glue then screw. The squeaks are caused by nails working loose from the framing lumber and then riding up and down in the snug hole. Pete Draganic