Viroc boards are also used in suspended ceilings, both indoors and outdoors, due to its aesthetics and durability. The suspended ceilings should possess open joints between the boards, both indoors and outdoors. The minimum thickness of
the Viroc boards for use in indoor ceilings in dry areas is 10 mm and it is 12mm for damp areas, whether indoors or outdoors. Paint or varnish coatings are necessary in damp areas.