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Posted by greg on November 30, 2007, 3:23 am
hi guys,
A contractor just did a floor in my basement. Basically he lay 2x3 on the
concrete (with a membrane against humidity) and had to use quiet a bit of
shimming/shingles as the floor was really not levelled. He had purchased 3 inch
tapcon screws and since (after the job was done) I learned that he didn't screw
the 2x3 to the cement (since the 3 inch screws wouldnt get there because of the
really high, over an inch shimming) so he just tapcon screwed the shingles to
the slap and then simply screwed the 2x3 to the shingles. He then installed 2
layers of 5/8" plywood. Problem is the floor still squaks a little in a few
place. I really hate that and its only been a day since he installed it. Floor
is leveled well, he already put wall partitions so too late to actually undo
anything. My question though is the following:
Can I "fix" the problem by basically screwing in some additional tapcon screws
(say 5") that would go through the 2 layers of plywood, then the 2x3 and then an
3/4 of an inch or so into the contrete? (also, the distance from the top 5/8
plywood to the concrete slab is about 4"1/4 so i'm not sure if the 5" would be
enough or should I go with the 6" - the slab is only about 2 1/2 inches thick...
any advice would be really appreciated. thanx
greg
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