Views: 1 Author: Site Editor Publish Time: 2021-07-08 Origin: Site
Although cement backing is one of the most commonly used tile bedding for walls in wet areas, a large proportion of builders have turned to fiberglass and gypsum board products.The following is why I think this is a wise move and provides some tips for the correct installation of glass mat gypsum products.
Despite its popularity, cement backer board has its drawbacks:
Cutting it generates silica dust that requires personal protective equipment
Chips that fall from cut edges can scratch tubs and shower bases
For the best performance, the entire surface must be covered with a liquid-applied waterproofing membrane, such as Custom Building Products’ RedGard.
Glass mat gypsum doesn't have these issues. The panel product is a water-resistant silicone-treated gypsum board that’s topped with a fiberglass mat surface, which creates a built-in moisture barrier. It weighs less than cement backer board, is easy to cut—simply score and snap it like drywall—and it’s mold-resistant and doesn’t require a full-surface waterproof coating.
However, a trouble-free installation depends on the right framing details, fasteners, and joint/fastener treatment.
How to Install Backer Board for Tile | Pro Builder