I am going to remove the carpet from a room in my home. I was going to clean up the concrete under the carpet because my house is built on a slab. I want to paint the concrete. What all will I need to clean the concrete before it can be painted?

The cleaning method will be determined by what you find under the carpet. Is it glued or simply laid down and fastned around the edges?

Also how you clean is determined on what type of paint your going to be using. Is it an apoxy type with a hardener or simply porch and deck paint?

If the concrete is in good shape you may even be able to stain it rather then paint. Paint tends to make the floor slippery.

Your best answer is to go to a good quality paint store, Not the big box ones and once the carpet is off the floor ask them what you should be using. As there is no one correct answer to your question.

I am getting ready to ceramic tile concrete floors. I need to know if I'll need to score the concrete before I lay the tile ? Is there a glue that I can use so I won't have to score the concrete. The house was built in 1960 and the bathroom has ceramic tile on it. There is 2 layers of ceramic tile on it so assume that the floor will be the same.

Just be sure the floor is clean and dry. No dust or old tiles still fastened to it.

If there is old glue such as the black stuff used on old asbestos tiles, you need to scrape as much of this off as you can.

Do not use the pre-mixed adhesives they sell to put down the floor. . In some cases this stuff will soften old glues that were not completely removed and cause failure of the tile to stick.

Purchase the adhesive you mix with water. It comes in bags like cement
It is much easier to use, cleans up faster and cost a lot less.
Be sure to use the proper sized trowel for the tile size you’re using.

If your doing a large room, be sure to start in the middle and work out to the edges. This way it will end up being even. Use the plastic crosses they sell to help align the tiles. But use your eye as well. Keep checking the look and if it seems to be getting crooked move them around until they look right. Take your time and you will find the job will end up looking great.

To marisa:
If your carpet is held down solely by tack striping then you are in luck.If not and glue was used I feel bad for you.Im in the decorative concrete buisness and I hate to see these type jobs. I know for a fact that alot of these glues are no longer available due to their toxic nature at least in my state. most of the time we tackle this problem by grinding. I do not recomend this to the average DIY type people. It is not fun and very dangerous.

Like Home care club said stain is much beter than paint and will last SOOOOOOOOO much longer.Like the glue paint also is horrible to remove. Please consider staining . There are even dyes on the market that act like acid stains and are very safe and easy to use. You can also faux these type dye's and create a unique floor that all will evny.
To yup:
When ever you try to lay something over concrete make sure you do a vapor test. Cut a 16" x 16" piece of 6 mill plastic and tape all edges down with a good duck tape making it air tight. Leave for 24 hours and then pull it up. Look for any color difference. If your test area is darker than the surounding area you have vapor transmition and you might want to test it further. All to often I have seen tile and other overlayment type materials pop off due to hydrostatic preasure.