I did my basement RecRoom (about 15 x 32') in these tiles about 12 years
After a toilet plumbing leek upstairs the Insurance clean-up crew came in
and ripped them all out as there was water underneath them. (source of
mould) As they found more and more water they proceeded to rip them all out
to replace the carpet that was wet and found puddle in the lows spots. (3
stooges). (I have my cold cellar floor lined with the insurance garbaged
units in my new house.)
I installed these to help warm up the floors in the basement room. They do
nothing unless you have an exit for the cold air stored underneath the
Also, if you install these units without any through ventilation you will
have a puddle under them guaranteed, as condensation forms and cannot get
out on the cold, insulated from the warm room air concrete floor surface.
The units are convex shaped to allow the surface to float and must be put
down without any rocking. They will not flatten out over time and will annoy
you forever, if you don't! Spare pieces of cutoffs can be used if you rip
off the plastic bottom instead of buying all the spacer pieces. Trouble is
you, sometimes you won't have many cut-offs until the last rows. I am not
sure you can stagger the joints due to the convex shape.
If flow through ventilation is provided they should stay dry underneath and
you should get some nice warmer carpeted floors in your basement. Other
than that they are a waste of money and a source of mould. Sensitive feet
can feel the arch in them through the carpet.
Does anybody have any experience, good or bad with the OSB 2'x2' tiles
with the plastic profiles on the bottom? DriCore? IIRC? I know the old
style had little feet like cups that would never dry out once wet...
Some plastic flooring goes right on the concrete, but 'has-to-be-
installed-by-qualified-installers. (I think they took a page out of
DuPont's Corian exclusivity book...)
Any and all pointers are appreciated. The web if full of info but I
prefer to hear from this group.