COMMUNITY FORUM

Oodi

05:21PM | 02/09/01
Member Since: 02/06/01
4 lifetime posts
Bvflooring
I have a 3rd floor condo which has 4 inches of concrete pored on top of the plywood for fire protection. It is a very cheap concrete which is very dusty (almost like it has no sand in it.) The floor had many cracks and you can feel feel some motion in certain places. You can even hear the plywood squeak in certain places. In a couple of places, the concrete looked like two plates that were 1/4 of an inch apart in height. I wanted to put hardwood on the floor so first I tried to fix the cement by pouring some self leveling cement on it. This helped but some of the cracks came back. A few are just hairline cracks, some a bit bigger. My goal is to put Mirage engineered red oak which is a 3/8 inch floor designed to be glued down directly onto concrete or cork or plywood. You can also staple it into plywood. I have been trying to decide on the best way to do this.

Some contractors have said I can just glue the wood right onto the concrete. Others have said that I'll have problems with the floor and need a subfloor. But this means putting lots of screws into the concrete which could make the floor worse.

My question is this: I am trying to understand worst case scenerio's. Suppose I glue the wood directly unto the concrete and the concrete cracks some more or the current cracks get bigger, what will exactly happen?

Suppose I put a 1/2 inch plywood subfloor, and the concrete again moves and the cracks get bigger. How will my subfloor help? If the concrete moves, won't the subfloor move with it? Should I use liquid nail to adhere the plywood to the cement or screws or both and how far apart should the screws be? What is the best way to level the plywood? I read somewhere where someone suggested sanding. Can you really sand plywood? I thought it was glued together from many sheets so I don't see how you could sand it.

What I really am trying to understand is the physics of this. The cement moves and then what? What happens to the wood above it and how can a subfloor stop this? Any info would be appreciated.

__Oodi

Click_to_reply_button
Inspiration_banner

INSPIRATION GALLERY



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply_choose_button

Anonymous

Post_new_button or Login_button
Register

With nothing more than a saw and some plywood, you can create your own Christmas tree cutout forest. Give the "tree" a coa... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled entryway will get you in the outdoor mood. Grab your coat... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... This roomy boot tray made from punched metal stands up to all the elements. Station it in your mudroom or at your back doo... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... FLOR carpet tiles are a simple and affordable way to customize a floor covering for any space. You can make anything from ... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... First dress up your metal shelves with a coat of paint in an accent color that complements your kitchen decor. Then arrang... The vibrant green of Granny Smith apples make a beautifully natural alternative to the traditional evergreen wreath. Brigh...
Follow_banner_a
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon