Marmox insulation boards are thin sheet boards designed to insulate the floor surface of new or existing buildings, saving up to 50% of the heat lost with conventional underfloor heating. This will significantly improve heat-up time and greatly reduce running costs. When used over the wooden floor, Marmox also acts as a tile backer and will not absorb moisture when used in bathrooms or wet areas.
Applications: On walls and floors, partition walls, shower base panels, wash tables and benches.
By laying Marmox Insulation Board between the concrete slab or wooden flooring and the heating system, you ensure energy is directed upwards instead of being dispersed throughout the concrete slab or floorboards. When used with a quality timer/thermostat, Marmox Insulation Board makes undertile heating more efficient – you’ll notice the difference in the power bills.
Individual boards are 1250mm X 600mm with optional thickness of 6mm, 10mm, 20mm, 30mm and 50mm.
Marmox Insulation boards have been appraised for use as an intermediate substrate to tiling for interior areas when applied to timber, plywood, fibre cement or concrete floors.
Clause B2 DURABILITY: Performance B2.3.1 (b) 15 years and B2.3.2. Marmox Building Products meet these requirements as they are used as an underlay for waterproofing membranes, they will be durable for at least 15 years, provided the tiling and waterproofing systems are maintained to ensure the boards and fixings remain dry in services.
Clause E3 INTERNAL MOISTURE: Performance E3.3.3. Marmox Building Products contribute to meeting this requirement. See Paragraphs 12.1-12.4.
Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Marmox Building Products meet this requirement.
New Zealand Building Code (NZBC)
In the opinion of BRANZ, Marmox Building Products, if designed, used, installed and maintained in accordance with the statements and conditions of this Appraisal, will meet or contribute to meeting the following provisions of the NZBC:
Clause B2 DURABILITY: Performance B2.3.1 (b) 15 years and B2.3.2. Marmox Building Products meet these requirements.
Clause E3 INTERNAL MOISTURE: Performance E3.3.3. Marmox Building Products contribute to meeting this requirement.
Marmox insulation boards are made from extruded polystyrene, each side faced with a nominal 0.75mm thick polymer modified cement mortar reinforced with a glass fibre mesh. The boards are available in thicknesses of 6mm, 10mm, 20mm, 30mm and 50mm
Marmox Insulation boards are designed as a tile substrate fixed over new or existing floors to provide a flat, even surface for the direct adhesion of ceramic or stone floor tiles. Once fixed in place, tiles may be directly adhered to the boards and grouted to provide an impervious and easily cleaned surface.
Installation of Marmox insulation boards must be completed by, or under the supervision of, Licensed Building Practitioners with the relevant Licence class, in accordance with the instructions given within the Marmox New Zealand Ltd Technical Literature.
Existing floor coverings must be removed before Marmox insulation boards are installed and the floor must be substantially flat. If any floorboards are cupped, misaligned or warped, the whole floor must be coarse-sanded. Loose flooring must be re-nailed and damaged, rotten or unsound flooring or floor framing must be replaced.
The floor must be free of dirt, dust and grease before installation of the boards
The boards can be cut with either a hand knife or a saw. When working in enclosed areas, precautions should be taken to ensure dust levels are control
Where Marmox Building Products are used as an underlay for waterproofing membranes, they will be durable for at least 15 years, provided the tiling and waterproofing systems are maintained to ensure the boards and fixings remain dry in service.
No maintenance of Marmox Building Products will be required, provided significant substrate movement does not occur and the tile finish remains intact. Regular checks must be made of the tiled areas to ensure they are sound and will not allow moisture to penetrate. Any cracks or damage must be repaired immediately by repairing the tiles, grout and sealant. Drainage outlets must be maintained to operate effectively, and the tile finishes must be kept clean.
CODE THICKNESS DIMENSIONS WEIGHT PER BOARD R VALUE MCB6 6MM 600 X 1250MM 2.0 0.16 MCB10 10MM 600 X 1250MM 2.2 0.28
This product has no warnings associated with it.
