I did a search but didn't come up with anything specific to answer my questions... My wife and I purchased a townhome in Oct. 2004. The townhome was built in 2001 and the only thing in bad shape is the carpeting. My wife has bad allergies and the previous owners had a dog. The entire is home is carpeted throughout except the standard kitchen and bathrooms. After seeing so many different homes featured in Dwell magazine with concrete floors - we are interested in just ripping out the carpet in our townhome downstairs. This would basically include the living room/dining room area. The carpet is already filthy with lots of spots. Not only would it help with my wife's allergies, we are both interested in modern/pre-fab homes as well as their designs and features. Our townhome is on a slab but I don't know much beyond that. I know regardless of anything else, the carpet would need to be ripped out sooner or later. We are thinking of simply using contemporary throw rugs throughout the living room/dining room area in conjunction with the concrete flooring. In a separate issue, I am getting back into the hobby reef-keeping and just obtained a 120-gallon reef-ready aquarium. This will be going downstairs in the living room area and I don't want this kind of weight on the carpet to begin with. Having it sit on the raw concrete with that kind weight may be better in the long run anyway... i.e., 120 gallons of saltwater x 8lbs-10lbs per gallon = 1,200lbs + 120lbs live rock + 150lbs live sand + 65 gallon sump/refugium @ 8lbs-10lbs per gallon = over 2,000lbs. My question is in regards to removing the carpeting and exposing the bare concrete floor underneath. 1.) What kind of prep would I have to do to the concrete flooring once the carpet is gone? Does it have to be sealed at all? Cleaned? Vacuumed? Sanded? I'm just being facetious because I honestly have no idea. 2.) I live in Minnesota and am also concerned about the freezing temperatures. Should I be concerned at all about the ambient temperature of the inside of home going down at all? I don't want to sound ignorant since this is our first home but I am assuming with the loss of insulation downstairs with the carpeting gone... it'll be freezing downstairs! If we have friends/family over for dinner - I don't want everyone bundled up in their goose down jackets while eating in the dining room downstairs. 3.) I'd also be interested in hearing from individuals (be it in Minnesota or otherwise) who have concerete flooring. Just interested in knowing what you think of it, maybe things you would have done differently, etc, etc. I'm also wondering when it comes time to sell the home what others may have found when doing so? Are realtors and/or prospective buyers turned off by the plain concrete flooring? I know this seems to be getting more and more popular, however. Thanks... - Scott.