answersLogoWhite

0


Best Answer

The thin set under the board is to fill in any low spots in the floor. It is not to adhere the board to the floor. It is preventative against deflection. If there is a low spot and you do not fill it in, the board will flex and the grout/ tile will crack. Do not use construction adhesive it will do more harm then good.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why do you put thin set under backer board?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Does backer board go over tub or behind?

Generally the tub is nailed to the studs and the backer board or sheetrock is put over the tub or just down to the top edge.


Do you have to put backer board behind the tub below the shower stall area?

No you not have to put backer board behind the tub below the shower stall area. You only need to use it behind the walls of the shower stall.


How do you stamp a number in thin aluminum?

Put your aluminum on a steel backer, an anvil works good, and don't hit very hard.


How do you install ceramic tile over ceramic tile?

It is best to remove the vinyl tile. If it is not on cement and is on wood you can install cement backer board. Be sure to put thin set under the board. If you spend the money and time to install ceramic tile and the vinyl tile comes loose all that $ is down the drain What is the best tile cement to use and this cement tile can be installed on vinyl tile and install ceramic tile on it


Do you have to add a subfloor to subfloor of a bathroom before adding backer board?

Not usually, no. As long as the sub floor is solid, without water damage, etc then a backer board is usually plenty. You need to have 1 1/4" of sub floor and backer board when you put the tile down. Generally speaking, homes are built with at least a 3/4" sub floor and 1/4" cement backer board with 1/4" x 1/4" trowel of thinset equals this. If you are not sure, don't assume. Find a vent in the floor. Pull out the register vent and use a hand mirror to see the sub floor. Take a tape measure and measure its thickness.


What do you need to put on top of a wooden porch floor before putting porcelain tile on it?

First, make sure it's level and very sturdy. The materials going down add up to a lot of extra weight, so make sure your porch was build to support it. Next, you'll want to lay backer board. I prefer hardi-backer 1/4 inch. There are several other brand that will work as well, but hardi backer is light weight and easier to work with. Make sure to hit all your mounting points with the correct type of screws (backer-on are made for this, but you can just as easily use another). Tape up your seams with backer board tape and your ready for thinset


How do you put away Angry Birds on ice?

Umm.. Are you talking about angry birds on thin ice the board game? If you are you could just put all the pieces in a bucket.


How do you put the board on the lugages in mystery train?

you click the board under all the suitcases, it looks like a long stick


Is composite board a manufacture board?

put very simply yes it is lots of small things often of different materials put together and then put under pressure to make them into a bored form.


If there is a wooden sub-floor with linoleum over it can you put ceramic tile over this right now there is carpet over the linoleum?

you have to pull the linoleum up to lay tile. . .i would suggest a cement backer board over the existing plywood also


How do you put a test tube on a Bunsen burner?

The Bunsen burner goes under a thin, fireproof chemistry table.


What is the name of the thin layer of icing put on a cake?

either butter cream that's put under the fondin (don't care if i spelled it wrong) or the fondin.