Underslab Insulation Sheets Stacked

A durable and energy-efficient solution for insulation applications and the ideal material to stop energy loss at the foundation slab.

Unitherm® is made from Unipoly®, a light-weight moulded polystyrene material with exceptional thermal insulation properties. Moisture resitance and stable R-value protects and insulates your concrete slab for a superior energy saving solution. Exceeding the ASTM C578, ‘Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation’.

Cool in summer,
warm in winter

Underslab Concrete Slab 3D Diagram with labels

Underslab Insulation

Unitherm® delivers the high compressive strength and efficiency required in residential slabs, preventing thermal loss through the ground. Unitherm® can be layered to achieve extremely high thermal resistance.

Perimeter Insulation

Installation of Unitherm® perimeter insulation is the simplest, most effective way to improve the thermal performance of the concrete slab.

  • Install as a continuous barrier around the edge of the slab, protect the exposed surface with a render finish or a suitable sheet material

Underfloor Heating

Install Unitherm® beneath the concrete slab to ensure optimal heating performance. Minimising heat loss will subsequently reduce energy costs.

Sizes

Unitherm is available in 4 standard thicknesses, with sheets measuring at
1200mm x  2400, or can be custom made to suit insulation requirements.

30mm

R1

45mm

R.1.5

75mm

R2

100mm

R3

Cut to size

Custom sizes to suit any project.

Underslab Insulation sizes, 30mm, 45mm, 75mm, 100mm

Why Unitherm?

  • Compressive Strength

  • Can withstand loads from large vehicles and
    equipmentn

  • Meets code requirements

  • Thermal Insulation

  • Moisture resistance

  • Extremely lightweight for easy handling

  • Retains R-value even with moisture exposure

  • No CFC, HCFC, HFC

  • Easily shaped on site or supplied prefabricated

  • No long-term R-value loss or thermal drift

  • Recyclable

  • Manufactured to Australian Standard

  • Water Resistant

  • Energy Efficient

Delivery

With a large fleet of trucks and premium delivery service in Victoria, you ensure that schedules are met and concrete is poured on time.

Delivery Times

7:00am – 4:00pm

Weekends

Avaliable

Suburbs

Statewide

Next day deliveries are available, please contact 1800 486 4763.

Price

Underslab expanded polystyrene pricing is based on sheet quantity and thickness. You can select from our standard sizes or customise your size & shape specific to your project.

For a detailed pricing take-off, please send through your information, drawings and requirements for an obligation free estimate.

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