We rented an old building (about 80 years old) and are renovating it for a retail space. When we started demolation we discovered a sag in the concrete that was covered by plywood-- which is inapropriate as you bounce on the sales floor--- so we ripped it up. The sag in the floor is about 22 ft by 30ft and is 6" deep on the wall side and level in the middle of the space. What would be the best way to make the floor level again. We plan to recarpet the area.
2006-11-27 13:20:37 · 12 answers · asked by oksooner339 1 in Home & Garden ➔ Do It Yourself (DIY)
Use a self leveling compound - it's perfect for this. Check with your local Home Depot to buy it.
2006-11-27 13:31:07 · answer #1 · answered by Julie 4 · 0⤊ 1⤋
Rent or borrow a hammer drill and 1/2" Crete bit, then drill holes every 2' the length of the bit all the way around. Masseur for depth on out side wall. Then lay 1/2" Barr in grid shape. Now order concrete accordingly and only do a manageable slab at once, this will also allow for expansion joints. To get the Crete inside just rent a buggy. Do NOT use the compounds in this big of an area because it will not only be costly but it will crack and flake leaving a bigger mess than your current one. Good luck.
2006-11-27 15:41:40 · answer #2 · answered by tnysallee 2 · 0⤊ 1⤋
To do it safely, you will need to remove the entire area. Then you will need to have the area repoured using about 13 cubic yards of concrete. The concrete alone will run about $100/yard plus delivery. (This large quatity may qualify for free delivery).
There is a LOT of work involved, mostly back-breaking manual labor.
I highly suggest hiring a professional cement contractor. It'll be done right and also have a nice tax write-off.
(Don't be shocked if it reaches $5,000 including removing the old concrete. It should then last another 80 years.
Oh, and the 'self-leveling' concrete suggestions? It'll cost you over $100,000 to do the area you've mentioned, so it won't be cost effective.
2006-11-27 23:48:17 · answer #3 · answered by Anonymous · 0⤊ 0⤋
You can use a floor leveling compound, but you will also need to use a concrete bonding agent to help it adhere to the existing floor. Both can be purchased at Lowe's and Home Depot
2006-11-27 13:58:58 · answer #4 · answered by Greg 3 · 2⤊ 2⤋
you should address , (with the property owner), why this concrete slab sagged in the first place. you may be able to have concrete pumped below the slab to raise and stabilize it.
2006-12-01 08:52:30 · answer #5 · answered by keith f 2 · 0⤊ 0⤋
cut the old concrete out and pour up the old stuff so its level again, my hubby told me this , hes a mason.
he says using that self leveling stuff will chip/crack out and if your going to go that route you need to clean and acro it.
2006-11-27 15:17:03 · answer #6 · answered by niptuck2630 5 · 0⤊ 0⤋
As a construction professional, I agree with IBEX - you need to have some engineering help on this one.
2006-11-28 12:34:50 · answer #7 · answered by Big Super 6 · 0⤊ 0⤋
22ft x30ft x6" deep you won't have any problem with it moveing you can be sure of the.I'm not a mason but don't beleive you have to tear out the floor.ruff up maybe.
2006-11-27 15:40:36 · answer #8 · answered by Larry-Oklahoma 7 · 0⤊ 0⤋
2 in. min thickness for best results
2006-11-27 13:25:54 · answer #9 · answered by tommy 4 · 0⤊ 1⤋
sure why not. Don't forget to leave your hand print in it before it drys
2006-12-01 08:37:15 · answer #10 · answered by Anonymous · 0⤊ 0⤋