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Huskyfan68 11-27-2012 09:33 AM

fixing subfloor
I had to cut a small section of plywood out of my subfloor (it's 1/2" plywood over concrete slab)- in order to run electrical cable to island. I had to cut the plywood out- Now I need to put some 1/2" plywood back in to fill the void and get ready to install new vinyl Armstrong tiles. What is best way to adhere this plywood back to slab so it does not cause any issues? Glue?- nail? both
see photo

joecaption 11-27-2012 10:34 AM

#1 Plywood never should have been used in the first place over concrete.

Huskyfan68 11-27-2012 10:57 AM

Joe- I know- been down that road for several months- That is the original configuration of the house (over 40 years old)- For me to try and remove the plywood would be a total B___. I actually had several contractors over the house to check and I asked them all the same question- All of the contractors said to leave it- it's too much to rip it out- It may not be the best but it's what I have to go with at this point

ddawg16 11-27-2012 10:58 AM


Originally Posted by joecaption (Post 1061604)
#1 Plywood never should have been used in the first place over concrete.

Maybe it's PT plywood?

Husky.....are you serious? Do you really have plywood on top of concrete?

Huskyfan68 11-27-2012 11:20 AM

yes ( i did not build the house)- was built in 1974- house is a split level with 1/2 house has a basement- Kitchen is on slab- I don't know what kind of plywood it is - looks like regular 1/2"- I can tell you this- when I had to remove that very small section to channel thru slab- that plywood is nailed/glued/etc on there- it took me literally hours to get that small section of wood up- I had a few contractors come thru this project for different things and each one of them said to leave it. They stated it's dry- solid, flat etc and to rip up plywood would be massive- that is what I am going with- I even had a moisture test done on a section of slab and it's dry as a bone

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