Our standard MAXSlab® is based around the following 3 polystyrene components, all of which are installed on a damp proof membrane:

1 . Perimeter Footings: Designed to both create a thermal break and bear the weight of your perimeter walls, these footings reduce heat loss from your floor at the point where up to 80% of such loss occurs;

2. Load Bearing Thickenings: Our load bearing thickenings can support load bearing walls within your home while maintaining a complete thermal envelope around your foundation;

3. MAXSlab® Infill: Our infill is a cost effective method of ensuring that your home is properly insulated and a thermal break is maintained throughout. Standard infill is 150mm however this is sometimes adjusted to suit design requirements.

Each of these components combine to give you a foundation with an R value of ~R4 depending on the nature of the design. Click here to try our H1 calculator to see what R-value your home could obtain (opens in MS Excel).

Delivered to site in pre-cut segments along with a site-specific panel plan, our MAXSlab® insulation system is extremely efficient to install. 

Once the MAXSlab insulation is installed, simply place and tie the reinforcing, complete any required inspections and lay concrete.

Example panel plan

Product Features

- Increased thermal efficiency
- Quick and simple installation
Site-specific engineering
Reliable, proven construction details
Achieves an R Value of approximately R4 according to floor design. 

Engineering (PS1) for consent can be arranged by contacting MAXSlab®, we work with a group of engineers who are experienced in designing our foundations.

Designs - Each MAXSlab® insulated foundation is engineered on a site-specific basis. Click on a link to view or download a typical MAXSlab® detail.


MAXSlab® - Taken in beautiful Queenstown