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. Corners are a common leak spot so use silicone caulk and backer rod instead of grout. Given its waterproofing and insulation properties thermasheet is particularly useful in both internal and external wet areas exposed to moisture. One type of tile backer board is made with a water resistant facing on both sides of the board. 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.

Although most backerboards currently available won t fall apart when exposed to moisture and are somewhat water resistant they aren t waterproof. Georgia pacific s densshield is one such product. Tape the seams to prevent tile pops and feather the mesh tape with a wide layer of thin set being careful not to create a hump. Radiant thermasheet tile backer insulation board.

Sheets of glass mat gypsum are made from water resistant silicone treated gypsum reinforced on both sides by fiberglass mats. 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. For added assurance add a layer of pain on waterproofing membrane before applying the tile.

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