Available in various sizes thicknesses including shower trays flexible board.

Tile backer waterproofing. 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. 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. Glass mat gypsum board is a better choice.

For added assurance add a layer of pain on waterproofing membrane before applying the tile. Georgia pacific s densshield is one such product. Although most backerboards currently available won t fall apart when exposed to moisture and are somewhat water resistant they aren t waterproof. Corners are a common leak spot so use silicone caulk and backer rod instead of grout.

Radiant thermasheet tile backer insulation board. 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. Sheets of glass mat gypsum are made from water resistant silicone treated gypsum reinforced on both sides by fiberglass mats.

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