Installing tongue and groove flooring, do you glue to the subfloor or use underlayment and add glue between it and the board?
The guy at the big box store told me to add adhesive to the underlayment foam padding. That seems ridiculous to me.
Is this accurate? I am replacing a damaged tongue and groove board. I won't be able to nail it down. I went looking for glue for the groove and tongue sections, but the big box store guy told to also add construction adhesive between the foam underlayment and the board.
Is this correct?