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Insulation Panel Specifications

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Core
Self-extinguishing grade, expanded polystyrene is manufactured to AS 1366.3 - 1992. It provides unparalleled performance and cost-effective insulation value.

Adhesive
A structural 2 part thermosetting polyurethane adhesive is used to laminate the two outer skins to the polystyrene core.

Durability
Styrofoil panels have been successfully used in New Zealand for over 30 years without showing any signs of degradation. Subject to BHP NZ Steel's requirements for materials selection, design, installation and maintenance, these panels meet the 50-year durability requirements of the New Zealand Building Code.

Surface Finishes - See Skins

In-Service Temperatures
The maximum recommended continuous operating temperature is 65'C. However, panels will be unaffected by temperatures of 70'C for short periods - such as hot water cleaning, etc.

Panel Thickness

Standard panel thicknesses are ... 50, 75, 100, 125, 150, 175, 200, 225 and 250mm with non-standard thickness' available subject to quantity considerations. 
Use our Contact Us form to obtain more information.

Panel Length
The continuous production method permits an infinite range of panel lengths. Maximum length is only limited by handling and transportation considerations. Lengths of 16m are not uncommon and maximum lengths in excess of 26m have been transported throughout the North Island. 
Use our Contact Us form to obtain more information.

Panel Width
Standard panel width for Styrolock™ is 1200mm and for Styroroof ™ 900mm.

 

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insulation panels

Specifications

Examples of Usage

About Styrofoil

Skins

 
Unique S lock jointing system makes panels easy to put together and finishes with a flush surface.  This creates a weather & vapour tight barrier.

 

Note: Need to use
 approved sealants.

 Fill in Contact Us form for more details

Panel Weights
Panel Thickness (mm) Weight (kg/m2)
50 11.4
75 11.8
100 12.2
150 13
200 13.8

Spans
The following recommended maximum panel spans have been calculated by our engineers after the completion of a comprehensive panel testing program

Walls

Panel Thickness (mm)

Span (m)

50

3.5

75

4.6

100

5.5

150

7.3

200

8.4

Ceiling

Panel Thickness (mm)

Span (m)

50

3.5

75

4.4

100

5.6

150

6.5

200

7.0

Roof

Panel Thickness (mm)

Span (m)

50

3.4

75

4.4

100

5.3

150

6.5

200

7.0

   
  • For other allowable load combinations use the Contact Us form.

  • Allowable spans are based on the following applied loads and the deflection criteria as set out in NZS 4203:1992

    • Walls:   0.71 kPa max wind pressure
    • Roof:    -0.84 kPa max wind pressure - outward
    • Ceiling: 0.25 kPa live load or 1KN point load
 

 

R-Values
The R Values have been calculated in accordance with NZS 4214 assuming a combined indoor and outdoor surface coefficient of 0.13 and S Grade polystyrene with a thermal conductivity (K) of 0.041w/m°C at a mean temperature of 15°C.
Panel Thickness (mm) R (m2° C/W)
50 1.4
75 2.0
100 2.6
150 3.8
200 5.0

Fire Performance
Panels have been tested to the Early Fire Hazard properties standard AS1530 Part 3 - 1976 giving the following results:
Ignitability Index.................(0-20)......0
Spread of Flame Index........(0-20)......0
Heat Evolved Index.............(0-10)......0
Smoke Developed Index......(0-10)......0
 

Acoustic Panels
Lanwood Acoustic panels have been tested to ISO140 Parts I and III resulting in the following transmission losses (dB):

Octave Band Centre Freq(Hz) Transmission Loss
50mm Panel 100mm Panel
125 20 20
250 25 24
500 28 25
1k 25 24
2k 41 44
4k 58 62
STC Rating 27 dBA 28 dBA
 

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