If plywood is used to raise the level of a concrete floor that is in poor shape, does anything need to be done between the substrates? The concrete has extensive mastic and carpet glue problems. The plywood will more or less just be covering that floor to make way for something else but I am...

We are planning on replacing our 3 ft high deck with a concrete patio about 12" thick and 30 ft wide. If we had to do it we will have to pour concrete over the hardi plank siding. Talked to a couple of concrete contractors they said they will apply metal flashing and pour concrete over the siding...

I just finished laying down a subfloor in my basement. Here is what I did: over concrete slab (fully sealed with radonloc cement sealer) 2X4 pressure treated sleepers nail gunned into conrete at 24" o/c ( 3 1/2" side lying flat ) 1" styrofoam insulation dropped in between sleepers 19/32...

My mother in law is building a new house and when they poured the foundation they did not have enough concrete to finish so they are coming back in a few days. My concern is first, is this right or should they have pour all in one day and second what guide lines are there in pouring a slab over...

Hello, I am ready to pour concrete and patch the cut I made in my garage slab to add a new toilet. I have a few questions first and would appreciate some help. I am using 3 inch ABS with the type of flange that glues into the pipe. 1) The top of the flange goes flush with the concrete?...