Thermasheet tile backer insulation boards are commonly used below under floor heating systems as they minimise any downward heat loss however they can also be used in instead of gyprock wall boards providing greater insulation properties.

Tile backer waterproofing. Although most backerboards currently available won t fall apart when exposed to moisture and are somewhat water resistant they aren t waterproof. For added assurance add a layer of pain on waterproofing membrane before applying the tile. Georgia pacific s densshield is one such product. Sheets of glass mat gypsum are made from water resistant silicone treated gypsum reinforced on both sides by fiberglass mats.

Glass mat gypsum board is a better choice. Corners are a common leak spot so use silicone caulk and backer rod instead of grout. To prevent moisture from seeping through to the wood or metal studs beneath the tile a barrier or sealant must be used on porous materials. Range of sizes typically 10mm is used on the floors and 12 5mm on the walls but our boards range from 6mm right through to 50mm to suit any project.

Water resistant gypsum board or green board was used in the past as a tile backer but is no longer recommended mainly because better products are available. Given its waterproofing and insulation properties thermasheet is particularly useful in both internal and external wet areas exposed to moisture. Radiant thermasheet tile backer insulation board.

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