Underslab InsulationUnitherm®

Superior moisture resistance and stable R-value to protect insulation integrity.

Unitherm® is a cost-effective, durable and energy efficient solution for insulation applications. It is 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. Unitherm® exceeds ASTM C578, ‘Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation’.

Unipoly® is also suitable for insulated cladding and roof insulation purposes.

Performance• Compressive Strength

• Can withstand loads from large vehicles and equipment

• Saves energy

• Meets code requirements

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

• No CFC, HCFC, HFC

• Moisture resistance

• Retains R-value even with moisture exposure

SizesUnitherm® is available in various thicknesses to meet your insulation requirements.

• 30mm – R1

• 45mm – R1.5

• 75mm – R2

• 100mm – R3

• Custom sizes are available.

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

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

Soil

Polythene

Concrete Slab

MeshBar Chairs

Unipods

Unitherm

Trench Mesh

Thermal EfficiencyThe insulating performance (R-value) of Unitherm® is increased with increased panel thickness size.

R Value Product Thickness

R1.0 Unitherm 30mm

R1.5 Unitherm 45mm

R2.3 Unitherm 75mm

R3.0 Unitherm 100mm

Unitherm® Panel R-Values

R Values are calculated using Unitherm in conjunction with 100mm concrete slab based on Summer and Winter conditions, as defined in AS4859.1 - Materials for the Thermal Insulation of Building Part 1.

Strong

Water Resistant

Lightweight

Recyclable

Energy Efficient

Applications• Underslab Insulation

• Perimeter Slab Insulation

• Under Floor Thermal Barrier

• Under Floor Footings

• Residential Slabs

• Factory Floors

• Refrigerated (Cool) Rooms

• Best used in conjunction with Unipod® Waffle pods.

Avoid Heat LossThermal insulation on the edge of slabs is important to reduce slab energy losses. Up to 80% of heat loss from a slab floor occurs at the perimeter. This is particularly the case when a heated slab floor is installed. Unitherm® on the external face of the slab improves the thermal performance. The surfaces of the insulation exposed to the elements must be protected from physical damage and from UV damage from sunlight. 

It is also important when installing the edge insulation to ensure there is a thermal break between outer surfaces (exposed to weather) and inner surfaces. A thermal break, using Unitherm® helps to stop leakage of heat. Where a small section of the edge of a slab is exposed to the weather, via a gap in insulation, or where there is a thermal heat leakage point (a thermal bridge) such as a metal connecting the slab to the external surface, or an air gap in the insulation, a significant amount of heat can be lost.

Even if 95% of the rest of the edge is insulated, a larger than expected (and disproportional to the size of the gap) amount of heat will be lost through the gap or via the thermal bridge. It is important when looking at the installation of perimeter/edge insulation or looking at underslab insulation that this potential for heat leakage is taken into account in the design of the insulation.

Perimeter InsulationInstallation of Unitherm® perimeter insulation is the simplest, most effective way to improve the thermal performance of the concrete slab. Steps:

1. Install as a continuous barrier around the edge of the slab

2. Protect exposed surface with a render finish or a suitable sheet material

Polythene

Unipods

Concrete Footing

Unitherm

Render/ Protective

Coating

Thermal bridge and subsequent heat loss.

Unitherm creates a thermal break to stop heat loss.

Unipod® is a progressive moulded polystyrene manufacturing and recycling company, founded in 2007, in Victoria Australia. The plant’s machinery and equipment are custom designed and built, making the plant a state-of the-art operation, and Unipod® the market leader in product quality, design flexibility and overall service.

2-10 Distribution Drive, Truganina, Vic 3029 Australia(Enter via foundation road)

1800 486 4763 info@unipod.com.au

Entry

UnipodUnitherm® is manufactured in Australia by Unipod® using the world’s latest and largest polystyrene block machinery.

In addition to Unitherm® Underslab Insulation, Unipod® also manufactures and supplies:

• Unibloc Geofoam®

• Unipod® Waffle Pods

• Unipoly® EPS Block / Panel

• Marine Pontoons

• Profile cutting

unipod.com.au

®