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Floor heating and insulation from Coldbuster Australia


About 50% of heat created by floor heating is absorbed by the concrete slab. When Marmox boards are used, most of the heat is reflected upwards in the tiles which leads to 50% reduction in heat up time and further reduces energy consumption and increases savings on running costs.

Fixing to Concrete Floors
The concrete surface must be clean before applying the board. New concrete slab should be cured before fixing Marmox insulation boards. Apply a bed of flexible adhesive to the concrete slab with a notched trowel, boards then to be thoroughly bedded in a staggered pattern, ensuring that no voids remain beneath them.

When the tile adhesive dry, tape all the joints with the fibreglass tape, then install the heating element, and tile with flexible tile adhesive. Movement joints must not be bridged by the Marmox construction board.

Fixing Timber Floors
Timber floors must be rigid, checked for flatness. The floor must be dry. Apply suitable tile adhesive layer with notched trowel. Boards then laid in a staggered pattern, fully bedded to ensure no voids remain under the boards.

When the adhesive dries apply fibreglass tape to the joints.

Secure the boards with screws and washers. Use 15 screws per board with min. 30mm from the edge. Then install the heating element and tile using flexible tile adhesive.

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