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Old 04-25-2013, 02:48 PM   #1
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Barrier between concrete floor and cabinets


Note: I am well aware of the risks of finishing a basement, including water leakage, humidity, and other issues. All water issues have already been addressed, humidity is controlled, and no existing mold issues.

Alright, with that said

I am in the process of finishing my basement, we are going to put bookshelves in against a back wall.. Right now these would go directly on concrete.. I know this is not an "ideal" thing to do. I was wondering if it would be worth it to put tile down in the area where they are going to go, and no grout it so if water *would* ever get in it wouldn't be in contact with the cabinets, and have a channel to run down and away.

Right now our walls are 8" Concrete block, with delta drainage on the outside going down into an exterior perimeter drain, which runs into a sump to be pumped out to the town storm system. Inside the walls have an inch of XPS foam, all taped at the seams... then a 2x4 stud wall (with PT wood on the concrete) which is then filled with roxul at R-15 then drywall. So there is a good bit of barrier before you get into the living space...

We've never had water issues in this area, not even wet blocks, last year we had one of the worst rains we ever had and not a drop inside...

But even with that I am still paranoid about going right onto the concrete with wood, so do you think this is a good idea to tile the area to raise it some? the rest of the room would be carpet that can be easily replaced if needed.

I don't want to go the dricore route, already tried that with 1/3rd of the basement and hated it... and raising the floor is an issue with height also.. so was trying to save as much room as possible where I can..

Ideas, suggestions, seem like a ok idea? thanks!

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House Information: Build 1996, 1500 sq ft basement, 1500 sq ft 1st floor, 800 sq ft 2nd floor, 560 sq ft unfinished attic space on 2nd floor. Insulation: Attic blown fiberglass, walls R-19, Basement R-19. HVAC: Trane xc95m fully modulating furnace, single zone, Trane XL20i commiunicating AC unit, TCONT900 Communicating thermostat.
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Old 04-25-2013, 11:16 PM   #2
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Barrier between concrete floor and cabinets


As basement slab temps are about 10*F warmer than surface water temps; http://www.epa.gov/athens/learn2mode...enrys_map.html or, 60*F in your case, I think you would be alright. Slab temps lag about 1-2 months after surface temps and colder locations should be concerned with spring/summer condensation, last page; http://www.buildingscience.com/docum...g-your-basment

You will notice (smell) if there are any moisture areas with carpeting, cardboard boxes, etc.... infrared thermometers are handy, another link pp.48; http://www.buildingscience.com/docum...sure-guideline

There are others beside dricor; http://www.buildingscience.com/docum...ms?full_view=1

http://www.buildingscience.com/docum...059-slab-happy

Delta FL, Enkadrain, etc.

Gary

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