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Installing a Cement Backerboard in the Bathroom

Bob meets Larry in the master bathroom, where he is installing a cement backerboard to the walls and floor of the shower stall and tiled floors. Larry explains that when combined with the latex mortar mix it essentially becomes waterproof when the tiles are installed. Larry�s assistant Kenny then shows Bob how to cut the cement board and attach it to the walls with galvanized screws.
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Installing a Cement Backerboard in the Bathroom

  computer-generated transcript - may not be 100% accurate

" Let's talk a little bit about the product everybody's using it nowadays that haven't issues board how that made. Well what is it -- that a mortar in between. Who. Fiberglass mesh. She sheets that hold it all together I assume it's poured in between these two and it hardens up. Very rattle of rigid piano -- rigid and what's the advantage of it over just bringing in some cement in the back in -- in up. And you know doing in my -- well if you can indeed these boards these. Retirement three foot by five foot sheets in just a little -- judge it by the neighboring area -- some holes in them and rhythm to the floor and or walls whatever application is it cheaper than putting in -- I've found it to be much more economical and and a better job all the way around because it prevents went well we've we've eventually glue the tiles. With things that with a latex. Mortar mix. You get through the good lord in walls adventure it would it -- water broke that yet. The other question I have is how do you cut it not like cutting drywall what we've candidate didn't get -- it out of order right now you wanna watch him do it. What we use it. They hand held carbide tipped. Scribing tool it scoring tool actually blow up. Fairly simply just draw a line. Edited the noise and it's gonna snap it. Accelerated basically did the same. We're cutting right wallboard yes. I got this weekend. Does it matter which side fitted out are we usually put the rough side out -- So that you've got a better grip on your -- you -- that. It -- Yeah. Can't you just nail that in place like with galvanized roofing. Well we like youth football because it's much more rigid application and nails will eventually. --"

" Fertile."

" The masonry bit. And them what we used welded these galvanized roof. If drywall habit revival. It worked pretty well to a group. Via -- in the -- private book. Slowly snug each one of these. OK and then this strip goes. Outside here."

" Thank."

" Out you know its interest in it. You're also using this product on the floors and that's not something happened before why is that. Well. When you're using ceramic tiles and wrote the pro life raft of fail over the course I'm -- In any -- outline bill that means water. Going to get from the surface of the plywood specially about lot of water left our time yeah. And what happens then is that going to do you laminate that plywood and any vehicle bordered more on. A lot. I want you got rot the plywood starts to delaminate you've got movement and motion and that's when the top of start popping out. So this makes for a better job than it -- once -- but we have thinset mortar on here and hit the tiles to it. Bentley a waterproof carpet but the water cannot penetrate the carpet and substrate get them while. One last question that you to get this. This stuff foam stuff in all the -- yet flowing pipe coming through you really need that while the other state requires that you prevent any route or. Air movement from Florida law -- plumbing all the electric wires and honor and primarily that's to prevent. Fires right to prevent air feeding a fire so if you prevent air from getting from point a to point B which downstairs right writer and a you've stopped you've inhibited that fire."

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While the house is being dried out, the siding can be put in place. The furring strips are attached to the foam exterior with an adhesive foam. Fasteners are used to affix the fiber cement siding and make sure it's secure. Bob talks with Jack Armour from Powers Fasteners about the fasteners used to secure the siding. Holes are drilled into the structure that are the same diameter as the fasteners . The fasteners are built with a "S" shape and are heat treated so that when the fasteners exert pressure against the cement walls and heat up, they try to return to their original shap, causing them to tighten their grip within the walls . Powers Fasteners is a company that is almost 100 years old. The fasteners were originally made of jute and then gradually started being made of plastic. HardiPlank, a product made of fiber cement, will be used for the siding. The planks are made of a mix of wood fiber and cement, which work well together. The planks are durable and hold paint well. The siding being used is prefinished.

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