Plan the installation so the last column of tiles overlaps the.
Concrete board joint compound.
Thick cement board spans studs spaced 16 in.
Thick weighs 45 to 60 lbs.
We utilized the same thin set that will be used to attach the tiles.
Lightweight all purpose drywall compound and easy sand 45 minute.
Joint compound is used to help provide a seal between the durock panels and to fill the depressions left by either nails or screws during installation.
At 12 a sheet or so for backer i d start over and do it the right way.
Redgard is approved for use over drywall but drywall joint compound is not the right thing for filling those joints according to the cement board manufacturers and thats the wrong tape as well.
And is available at most full service lumberyards and building supply centers.
This type of wall material can be finished just like ordinary drywall using joint tape and joint compound.
The standard size sheet is 3 x 5 ft.
Make the seam just wide enough to cover the entire surface of the tape generally 3 inches.
Formed in a continuous process of aggregated portland cement slurry with polymer coated glass fiber mesh completely encompassing edges and back and front surfaces edges.
The joint between cement board and greenboard is similar to the joint between two pieces of cement board or two pieces of drywall.
Learn the difference between them and get a better understanding of the choices for different situations.
Having the cement board alkali resistant screws joint tape and mortar will get you one step closer to installing the tub surround the right way.
Durock cement boards are a type of drywall reinforced with cement for a harder surface.
Setting type joint compound lightweight joint compound all purpose compound and others all have their unique uses.
Dab additional compound over the screw holes on both the drywall and cement boards near the seam but not under the tape.
Do not use lightweight setting type joint compounds or ready mix joint compounds directly over usg durock cement board.
Get it smooth and flat.
