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Cooldek Roofing

Control the climate with the innovative Cooldek insulated roofing panel. Cooldek provides a roof, insulation and ceiling-like finish all-in-one! It has superior spanning capabilities and outstanding cooling performance.

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Control the climate with insulated Stratco Cooldek Roofing

Reduce heat and noise – Save money!

The insulating properties of Stratco Cooldek Roofing reduce heat from above on hot days, significantly increasing comfort levels under the roof.

Cooldek Roofing reduces noise from heavy rain and aids in keeping your home cool, reducing energy costs AND your carbon footprint.

Stratco Cooldek Roofing features a polystyrene core that is permanently bonded to a smooth, easy to clean, coloured steel underside, and a profiled, coloured steel topside.

Finish and colour options to suit your home

Choose from either the Cooldek Classic or the Cooldek CGI roofing profiles.

For the underside, there is a choice of smooth or one of two ribbed profile finishes. These are available in white or a choice of high gloss colours.

The topside colour choices include a wide range of colours to integrate your carport, pergola, verandah or patio into existing colour schemes.

There are three insulation thicknesses to choose from:

  • 50mm thick panels with an insulation rating (R value) of up to 1.6
  • 75mm thick panels with an insulation rating of up to 2.2
  • 100mm panels with an insulation rating of up to 2.8

Strong, sleek and easy to install

Exceptional strength allows Stratco Cooldek Roofing to span up to an impressive 7 metres.

Large spans reduce the number of beams and framework, creating an uncluttered, ceiling-like appearance.

Simple to install, Stratco Cooldek roofing has an inbuilt rebate to conceal electrical wiring for fans and light fittings.

Profil

Design Considerations

The minimum recommended roof pitch for “flat” verandahs shall be 2° (1 in 30) for Cooldek Classic panels and 3° (1 in 20) for Cooldek CGI panels. The maximum roof pitch for “flat” verandahs shall be 5° (1 in 12). Care must be taken to ensure the minimum roof pitch is maintained to avoid ponding of rainwater.

The roof is designed to withstand actions incidental to maintenance, roofs are not to be used for floor type activities.

The design contained within these span tables relate to wind classifications N1, N2, N3, and N4 applicable to Regions A and B. Stratco does not accept liability for any loss or damage suffered as a result of any errors in the interpretation or application of these span tables.

Material Specifications

Material Properties

Cooldek Classic

Cooldek CGI

Base Metal Thickness / Material Grade

Top Skin

0.42mm / G550

0.42mm / G550

Bottom Skin

0.50mm / G300

0.50mm / G300

Mass (kg / linear metre)

50mm Panel

9.5

9.6

75mm Panel

9.8

9.9

100mm Panel

10.1

10.2

Width Coverage (mm)

1000

1000

Minimum Roof Pitch

Core

Material

SL Grade EPS (expanded polystyrene)

Thermal Conductivity

0.037 W/mK (0°C mean temperature)

 

Compliance

The Wind Capacity Tables are based on testing in accordance with AS1562.1-1992 and AS4040.0, 1 & 2-1992. Span tables have been developed by determining wind pressures in accordance with AS4055-2012 for domestic applications. Capacity tables are in limit state format.

Spans

The spans given in the ‘Single Spans’ table are determined for wind speeds for non-cyclonic areas. Indicated spans are suitable for ‘flat’ roof patios. Open freestanding unit spans can be taken from open three sides unless a wall, eaves or boundary exists within 500mm of two or more sides.

For Cooldek roofing in attached or freestanding domestic gable patio application, sheet spans shall not exceed those given for one or no open sides. Alternatively the ‘Wind Capacities’ table may be used to determine allowable single spans for any application.

Spans specified for units with three sides open are suitable for units considered ’empty under’ and not exceeding three metres in height (from ground or deck level). For units in which goods or materials stored under the roof are expected to block greater than 50% of any open side exposed to the wind spans are to be taken from open two sides.

For units with two open sides, spans are based on Cp,n=-1.0 while for units with only one or no open sides, Cp,n=-1.2. In all cases, relevant consideration has been given to local pressure.

Note: The ‘Wind Capacities’ table provides allowable wind capacities for Cooldek in single span application for serviceability and strength limit states. The pressures given may be used by a suitably qualified engineer for any single span application ensuring appropriate fixing details are applied.

Single Spans – Domestic Patio Application

Single Spans – Domestic Patio Application (mm)

Open Sides

Panel Thickness (mm)

COOLDEK CLASSIC

COOLDEK CGI

N1 (W28)

N2 (W33)

N3 (W41)

N4 (W50)

N1 (W28)

N2 (W33)

N3 (W41)

N4 (W50)

Three

50

5400

5400

5400

4200 (3900)

5400

5400

5100

3900

75

6600

6600

6000

4800 (3900)

6600

6600

6000

4800 (3900)

100

7200

7200

6600

6000

7200

7200

6900

6000

Two

50

5400

5400

3900

3300 (2100)

5400

5100

3600

3000

75

6600

5500

4800 (4400)

3900 (2100)

6600

5700

4800

3900 (3000)

100

7200

6300

5400 (5400)

4100 (n/a)

7200

6600

5400

4100 (3500)

One/None or Gable Patio

50

5400

4500

3300

3000 (n/a)

5400

4500

3300

3000 (2000)

75

6000

4800

3900 (3300)

3300 (n/a)

6300

5100

3900

3300 (2100)

100

6900

5400

4200 (3100)

3600 (n/a)

7200

5700

4200

3600 (2400)

Maximum allowable 900mm deck overhang for 50 and 75mm panels and 1200mm for 100mm panels, except in wind classification N4 in which maximum allowable shall be 900mm. The cladding back span shall be no less than 1.5 times the deck overhang. If values are shown in brackets they represent the maximum allowable span if an overhang is used. For a side to be considered open, the full length of the side must be open.

Single Span Wind Capacities (kPa)

Single Span Wind Capacities (kPa)

Profile

Panel Thickness (mm)

Limit State

Span (mm)

1800

2400

3000

3600

4200

4800

5400

6000

6600

7200

Classic

50

Serviceability

3.80

2.69

2.06

1.66

1.38

1.18

1.02

Strength

6.70

4.50

3.30

2.56

2.07

1.72

1.46

75

Serviceability

4.86

3.43

2.58

2.02

1.64

1.37

1.16

1.00

Strength

5.11

3.63

2.75

2.17

1.77

1.48

1.26

1.08

100

Serviceability

3.51

2.78

2.27

1.91

1.65

1.44

1.27

1.14

Strength

4.58

3.47

2.74

2.24

1.87

1.59

1.38

1.21

CGI

50

Serviceability

3.72

2.62

1.99

1.60

1.32

1.13

0.97

Strength

6.78

4.47

3.24

2.49

1.99

1.64

1.38

75

Serviceability

3.81

2.86

2.27

1.86

1.57

1.35

1.18

1.04

Strength

5.84

4.15

3.14

2.48

2.02

1.69

1.44

1.24

100

Serviceability

3.74

2.89

2.33

1.93

1.63

1.41

1.23

1.09

Strength

4.20

3.30

2.69

2.25

1.92

1.67

1.47

1.31

The values in all the above tables are for use with steel supports with a minimum thickness of 1.0mm BMT, G550, or timber supports with fixing details as specified below.

Fixing Recommendations

Cooldek roofing should be laid into the prevailing wind and sit neatly on the preceding roof sheet. For the Classic profile fasten through each crest, and for the CGI profile fasten through every second crest. Use cyclone caps and neoprene washers in all crest fixings. Fix side laps with 12×20 hex head screws with neoprene washers at approximately 1000mm centres, refer below.

Walking on Cooldek

When walking on Cooldek roofing, it is recommended you walk over the support beam to avoid damage. Wear flat, rubber soled shoes and walk flat footed in the sheet pans for Classic, and with your weight spread over as many crests as possible for CGI. For carport and verandah applications, away from supports, crawl boards should be used to avoid damage during installation and maintenance.

Maintenance

The performance of Cooldek over time depends on its correct application and maintenance. Maintenance should be performed as often as is required to remove dirt, salt and pollutants. Where used in severely corrosive environments, cleaning should be performed more often. It is important that screws have the same life expectancy as the cladding you have specified. Packs of Cooldek should always be kept dry and stored above ground level while on site. If the sheets have become wet, they should be separated, wiped and placed in the open to dry. Refer to Stratco “Selection, Use and Maintenance” brochure, for more detailed information about the correct use and maintenance of this product.





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