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MAXRaft Plus+
Description

MAXRaft Plus+ is designed to meet the requirements of the upcoming building code changes where embedded underfloor heating is specified and the slab is being built on less stable ground such as TC2, expansive soils, 200KPA or piled sites.

Typically the slab is either 320 or 400mm in height, however this can be adjusted to meet site specific requirements. 

The perimeter insulation, ribs and load bearing insulation from a standard MAXRaft® remain the same, however the SOLID PODS in the slab have increased thermal performance over traditional waffle pods to increase the R-value of the slab.

Each of these components combine to give a foundation with an R value between 2.5 and 4.03 depending on the design. 

MAXRaft Plus+ meets the requirements of Homestar V5 and can be adjusted to meet the requirements of Passive House Certification if required.

Key Features
  • Solid insulation throughout
  • Easily meets the building code
  • Suitable with 90mm/140mm/SIPS
  • VH EPS perimeter & thickening insulation
  • Panel plan and pre-cut materials including PODS
  • Minimum waste / Recycled polystyrene materials
  • 50/50 recycled pods or S grade solid pods
  • MAXRaft R-value Calculator — find the product to exceed the requirements of H1
Scope of Use
  • Designed to meet the requirements of building code changes where embedded underfloor heating is specified and the slab is being built on less stable ground such as TC2, expansive soils, 200KPA or piled sites
  • Suitable with 90mm/140mm/SIPS
  • Typically the slab is either 320 or 400mm in height — can be adjusted to meet site specific requirements
  • Foundation with an R value between 2.5 and 4.03 depending on the design.
  • Use the MAXRaft R-value Calculator to find the product from the MAXRaft range to meet & exceed the requirements of H1
Statement of Building Code Compliance

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.

Other Performance Attributes

MAXRaft Plus+ meets the requirements of Homestar V5 and can be adjusted to meet the requirements of Passive House Certification if required.

Documents
MAXRaft R-value Calculator
Technical Resources
BRANZ Appraisal 1054

1054 [2019]

Product Guide

2023

CAD/PDF Details
Filters
MAXRaft Products
MAXRaft Plus+ 320
MAXRaft Plus+ 340
MAXRaft Plus+ 400
MAXRaft Plus+ 400 (Steel fibre concrete)
MAXRaft Plus+ 420
MAXRaft Plus+ 420 (steel fibre concrete)

Build a healthy and more cost effective home from the foundation up with MAXRaft, New Zealand's premier fully insulated concrete slabs.

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