Introducing MAXRaft Thermally Broken Slabs

MAXRaft slabs combine strength with durability. The slab encases the perimeter and puts a continuous layer of MAXRaft between the ground and concrete, unlike traditional waffle slabs. This insulation has a dramatic effect on the surface temperature, significantly increasing the comfort of the home and the health of the family, all the while lowering the cost of heating.

In the past NZers have concentrated on insulating ceilings and walls, however up to a third of a building’s heat can be lost through an uninsulated floor. Up to 80% of heat loss can be through the external edges of the foundation. It has been proven in many countries that a completely insulated foundation offers the best form of heat retention.

Iso-thermal analysis conducted in line with ISO 10211 comparing MAXRaft to a traditional waffle slab showed MAXRaft is significantly warmer, providing comfortable warmth even in the middle of a South Island winter -0°C climates.

MAXRaft has solutions for most types of ground (incl TC1/2), residential (single storey, multi-level or simply an extension) and commercial build, while providing insulation with an R value of R2.5-R3 depending on the site. Installation is quick, practical and efficient with site-specific insulated slabs delivered to site in pre-cut segments.

Based in Queenstown, with representatives in Auckland and Christchurch, MAXRaft is a passionate team dedicated to providing properly insulated homes for its customers.

Request more information about MAXRaft's insulation performance.

MAXSlab

MAXRaft

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MAXSlab is an insulated, concrete slab-on-ground flooring system for use in residential and light commercial buildings.

The MAXRaft Concrete Slab Floor System (MaxSlab) can be used to construct steel reinforced, concrete slab-on-ground floors subject to specific engineering design for buildings within the following scope:

Ground floor slabs for timber-framed buildings, within the scope of NZS 3604, or other similar lightweight constructions where they are subject to specific engineering design; and
Built on 'good ground' as defined by Acceptable Solutions and Verification Methods for NZBC Clause B1 Structure; or,
Built on 'TC2' type ground within the 'Canterbury earthquake region' or moderately to highly expansive soils, subject to verification and assessment by a Chartered Professional Engineer

See BRANZ Appraisal 1054 for full information.

Use the MAXRaft R-value Calculator to find the product from the MAXRaft range to meet & exceed the requirements of H1

If designed, used, installed and maintained in accordance with the statements and conditions of the BRANZ appraisal, the MAXRaft Concrete Slab Floor System (MaxSlab) will meet the following provisions of the NZBC:

Clause B1 Structure: Performance B1.3.1, B1.3.2 and B1.3.4. the MAXRaft Concrete Slab Floor System meets the requirements for loads arising from self-weight, imposed gravity loads, earthquake, wind, differential movements and time dependent effects including creep and shrinkage. [i.e. B1.3.3 (a), (b), (f), (h), (m) and (q)]. See Paragraphs 7.1 – 7.2
Clause B2 Durability: Performance B2.3.1 (a) not less than 50 years and B2.3.2. MAXRaft Concrete Slab Floor System meets these requirements. See Paragraphs 8.1 – 8.3
Clause E2 External Moisture: Performance E2.3.3. The MAXRaft Concrete Slab Floor System meets these requirements. See Paragraphs 10.1 – 10.3
Clause F2 Hazardous Building Materials: Performance F2.3.1. The MAXRaft Concrete Slab Floor System meets this requirement and does not present a health hazard to people.
Clause H1 Energy Efficiency: Performance H1.3.1 and H1.3.2E. The MAXRaft Concrete Slab Floor System contributes to meeting these requirements. See Paragraphs 12.1 – 12.2

See BRANZ Appraisal 1054 for full information.

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