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ThermaDoor Technical

ThermaDoor™ Garage Door Insulation is a construction grade EPS (Expanded Polystyrene) Insulation Panel Laminated with an impact resilient, easy to clean Vinyl finish. ThermaDoor™ has been specifically designed to fit to the internal panel of most sectional garage doors. ThermaDoor™ Garage Door Insulation Panel is made up of the following properties.

(EPS) Expanded Polystyrene Panel

Accredited by the Building Regulations Advisory Committee (BRAC) under BRAC certificate number V11/07; The EPS (Expanded Polystyrene) building panels are made up of Perform Guard® - termite Resistant EPS (Expanded Polystyrene) (Grade M).

Standard Panel Sizes and Surface Mass

The standard panel size is 2500mm x 1200mm, in a nominal standard thickness of 40mm. The surface mass of the panel is given in Table 1.

Table 1: Nominal Surface Mass (kg/m2)

Expanded Polystyrene Building Panel M Grade0.76

Table 2: Sheet Weight in KG

Expanded Polystyrene Building Panel M Grade2.3

Thermal Insulation

Table 3: Sheet Weight in KG

Thickness (mm)40
Thermal conductivity at 23 degrees Celsius (W/m2.K) 
R Value at 23 degrees Celsius (m2.K/W)1.10
Thermal conductance at 23 degrees Celsius (W/m2.K)0.95

Understanding R Values

All home Insulation materials have certain features in common. Each is designed to trap air in tiny pockets or cells, whether fluffy, foamed or loose fill. Some are more efficient than others at resisting thermal exchange. All are rated by an ‘R Value’. An R-Value is a precise measurement of a materials resistance to heat transfer. The higher the number, the greater the materials capacity to resist heat flow – meaning more efficient Insulation.

Early Fire Hazard Properties

From the test conducted by AWTA, Division of Building Material – NATA Accreditation # 1356, the following indices given in Table 4 have been determined.

Thickness (mm)40
Thermal conductivity at 23 degrees Celsius (W/m2.K) 
R Value at 23 degrees Celsius (m2.K/W)1.10
Thermal conductance at 23 degrees Celsius (W/m2.K)0.95

Table 4: Early Fire Hazard Properties of Expanded Polystyrene Building Panel M Grade

MaterialsExpanded Polystyrene Building Panel M Grade
Ignitability Index (0-20)0
Spread of Flame (0-10)0
Heat Evolved Index (0-10)0
Smoke Produced Index (0-10)4

Sound Reduction Properties

Table 5: Expanded Polystyrene Building Panel M Grade Weighted Sound Reduction Index (Rw) Performance

Panel Thickness (mm)ConstructionRw
40Panel Only11dB

Table 6: Perceived Change in Decibel Levels

Change in Sound LevelPerceived Change in the Human Ear
+ or - 1dbNot Perceptible
+ or - 3dbThreshold or Perception
+ or - 5dbClearly Noticeable
+ or - 10dbTwice (or half) as Loud

Binding Layer

A paper based or cardboard material ranging from 100gsm to 250gsm.

Adhesive / Bonding Agent

A Polyvinyl Acetate or Polyvinyl Alcohol or Ethylene Vinyl Acetate (Adhesive).

Covering Layer

Table 7: VinylLaminate Specifications

Gauge0.1 – 0.8
Roll Length100 Metres

Meets Australian FR standards for use in commercial applications. Flame Retardant test to: AS 1530.3

Table 8: VinylLaminate Flame Retardant Results

Heat Evolved0
Spread of Flam0
Smoke Developed2

Care Instructions

Warm water & non-abrasive, pH neutral detergent solution. Surfaces should be thoroughly rinsed (not high pressure cleaned) after cleaning to remove all residues. Surfaces should be cleaned using a soft cloth or sponge or a soft natural bristle brush.

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By simply adding ThermaDoor Garage Door Insulation to your garage door, you will increase the thermal comfort of your garage, reduce your energy bills, and provide an additional barrier against noise, creating a TRUE and COST EFFECTIVE extension of your home.