Level Floor Before Or After Cement Board

It is important for the self leveling compound to properly bond with the subfloor so preparation is the key.

Level floor before or after cement board.

I need to match the height of the existing tile in the bathroom. The preparation of the sub floor will be different depending on the type of sub floor you want to level. I plan on thinsetting and screwing cement board to the subfloor then redgard then thin set and tile. Just mix it with water pour and spread.

There s a dip about 3 8 deep by 2 feet wide by 5 feet long. The henry level pro 40 lb. Spread a uniform layer of mortar on the plywood with a 1 4 inch notch trowel to support the backer board. Self leveling underlayment the henry level pro 40 lb.

It s a ground floor bathroom with 2x4 joists set on brick piers on a cement slab. Before installation i used a beltsander and sometimes a power planer to smooth the transition between plywood sheets and also. Self leveling underlayment is an easy to use cement based underlayment that self levels. The plywood floor is 3 4 and sits on joists.

The joists were flimsy and there was a lot of bounce in the floor so i sistered the joists and added blocking and more bricks. The house is 50 yrs old. But i ve done the best that i can. 5 steps to a sound ceramic floor.

I installed the hardibacker using modified thinset and roofing nails. The underlayment is excellent for smoothing and flattening interior surfaces before installing floor coverings. Would this calculation get me to the right height compressed thin set on top of sub floor 1 8 cement board 1 2 compressed thin set on top of cement board 1 8. Among tile contractors flashing the floor means to flatten the floor by filling in valleys with a leveling compound.

Prepare a solid squeak free subfloor one of the keys to a long lasting tile installation is the underlying subfloor. Is there any reason not to. However the guys at the tile store seem oddly negative about using self leveling compound. P i just completed installing 1 4 hardibacker over a plywood subfloor in my master bath in preparation for installing 12x12 porcelain tile.

I sanded the joists and got it as level as i could. Leveling a floor can be either a do it yourself project or a job for the pros depending on what s causing the problem. However the method i describe here is suitable for any level of a house and over a variety of subfloors including concrete slab gypsum plywood and oriented strand board osb. I taped and covered the joints with modied thinset.

It has to be rock solid before you lay the 1 2 in. You can apply self leveling compound directly to hardibacker cement board or any other approved tile setting materials.