How are grab bars, towel bars, other fixtures installed?
A – Fixtures can be screwed into the webs (there is one every six inches), or installed using molly bolts through the sheetrock. Alternatively backing can be installed between the sheetrock and the block. One method is to use a hotknife and skin off 1/2 inch of the foam (flush with the webs) and install a strip of 1/2 inch plywood that is screwed into the webs wherever possible. Then fasteners can be screwed into the plywood at any point. A second and easier method is to use Windlock Grapplers. These are 4″ x 6″ perforated steel plates’ corners dig into the foam and when sheetrock is applied over it they become firmly locked in place. A fastener can then be screwed in at any point and it will pierce and lock into the Grappler backing.
Fixtures can be screwed into the webs (there is one every six inches), or installed using moly bolts through the sheetrock. Alternatively backing can be installed between the sheetrock and the block. One method is to use a hotknife and skin off 1/2 inch of the foam (flush with the webs) and install a strip of 1/2 inch plywood that is screwed into the webs wherever possible. Then fasteners can be screwed into the plywood at any point.
