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suggetions?
I’m laying down 1/2″ underlayment for a new floor – over a 30 year old 3/4″ T&G plywood subfloor. 1 5/8″ coarse thread screws, spiral and ring shank nails all pull out too easy for confort.
Any suggestions besides cutting out/replacing the subfloor?
thanks
scc
Replies
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are you getting good bite with the screws and going for the joists? never had them pull out b/4. might try slighly shorter screw. If you get every thing to grab initially, i suppose you could glue then screw. beats the crap outta me.
*it just occurred to me that maybe your screws are stripping out trying to countersink them selves. Maybe?
*If neither the nails or the screws are holding, then you have a plywood subfloor that is degrading. The PROPER way to cure this is to remove the old subfloor, and install new subfloor material. If you cut corners here, everything that you install on top of the problem subfloor will have problems too. I personally would not risk my underlayment, or my floor covering. They cost too much.Just a thought...James DuHamel
*thanks for the replies!I can get into the joists fine. But going for 6" on edges and 8" in the field, the screws sink and spin - no bite. I just hate the thought of patching in a new subfloor, there are two non-load bearing walls to contend w/.thx again
*SCC, I experiece this quite frequently when trying to screw down in the field portion of a sheet. Try using 2" screws driven in on an angle. they seem to grab better. This really does work. You may even be able to acheive sucess with your 1 and five eighths screws. Steve
*SCC,I'm stumped too. 1/58" course thread screws should not pull out. I've cursed many a ring shank nail that I found during remodeling to believe they come out easy. If you're stripping the screws as James suggest, maybe a screw gun with a clutch will help.An existing 3/4" floor should hold a nail or a screw with no problem if you hit the joist or not. If you 3/4" floor is that rotten that it won't hold a screw or nail, then you will have to replace it.My opinion,Ed. Williams