Visit JamesHardiePros. What thickness is used in floor applications? Is a vapor barrier required? However, we recommend HardieBacker if you need to make a smooth transition to drywall.
The board must be mechanically fastened every 8'' on center to the wood or metal studs spaced a maximum of 16'' on center. A vapor barrier is needed if required by local building codes. Which side goes up, smooth or rough? Either is acceptable, but we recommend that the smooth side with the nailing pattern of every 8" on center go up.
HardieBacker board is not designed for use over concrete. Unmodified thinset ANSI This decreases the probability of popping or cracking tiles due to deflection and air pockets. What do you mean by ''modified thinset''? The thinset can be fortified in a pre-mixed powder form or with a liquid additive. As for his fondness for Liquid Nails, he told me he uses one tube per 16 SF of backerboard, and just covers as much as he can.
I didn't like that idea at the start and I still don't. Mike, I really don't know what the subfloor consists of, but if it is any help, the house was built to code in in Redmond WA. The tile going down is ceramic tile. I've attached a little drawing, which leads me to believe that the unsupported joists run at least the 10' width of the bathroom. A few more question if I may: we're going to put 3" high bullnose tiles around the floor for base moulding.
I assume they should be installed over backerboard and not the sheetrock, right? Just want to make sure he doesn't skip that part.
And for the front edge of the vanity, which will be 1. It just seems like chore to cut a 1. Face the rough side out if you will be using thin-set mortar adhesive to install the tile but the smooth side out if you will be using latex mastic.
It is a structural adhesive generally used to bond the subfloor to the floor joists just prior to nailing. Cut fiberglass mesh tape to fit in a single layer over every joint where the panels meet, but do not overlap the tape.
Mix powdered latex-reinforced cement mortar with water as directed on the package in a clean plastic bucket. You don't need any cement board under the tub.
It is far more important to have a sturdy layer of ply under the tub. Since you are putting down hardie board on boards with small gaps, I would not recommend trying to put down thinset under it.
It will make an enormous mess under the house or whatever is under your bathroom. It is also more likely to make the floor uneven since it is hard to level thinset that is separated by gaps. Some cement board products may not require the underlying membrane if the seams are properly waterproofed.
Unmodified thinset has been around forever. Unlike unmodified mortar, which consists only of a blend of Portland cement, sand, and water retention agents, modified thinset includes additional retention products, such as latex polymers, which can increase its performance and strength. Liquid Nails is to a contractor what a glue gun is to a crafter. However, this solvent-based, rubber adhesive has its limitations.
It can be used to repair a loose vinyl or tile floor, but it should never be used for installation. Tile Mastic It is best for applications in dry areas, such as walls in kitchens and living areas. Unprimed hardie can sit for 3 months without paint. Seyni Krzyzak Teacher. Can you put screws in Hardie board? Cement Board Screws are designed for attaching HardieBacker or equivalent fiber cement backerboard to wood or light gauge steel studs.
Cherno Utiel Beginner. Can cement board be used outside? It can be used on the exterior of buildings as a base for exterior plaster stucco systems and sometimes as the finish system itself. Cement board adds impact resistance and strength to the wall surface as compared to water resistant gypsum boards. Dede Zurhove Beginner. Can I tile on plywood? While tile can be laid on plywood , do not install tile directly onto the plywood subfloor itself.
Use intervening layers of two sheets of plywood. Ildefons Nereu Beginner. How do you install cement backer board on the floor? Julio Parnell Beginner. How many screws come in a Hardibacker sheet? Fasten a minimum of 12 screws into the board 4 rows of 3 screws.
Keep fixings between 15mm from board edges and 50mm from board corners. Fill the gap between floor and wall edges with good quality bathroom sealant. Asbel Bistritzky Beginner.
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