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Material Properties of the Product

Property

Requirement

Test Result

Thickness (mm)

≥ 0.33

0.37

Thickness of zinc coating (g/m2 )

≥ 275

283

 Coating quality

Smooth and uniform, free of pinholes, cracks, blisters and flaking

Pass

Flexibility

No flaking or microcracking

Pass

Humidity resistance

No formation of blisters

Pass

Durability

No sign of any change

Slight colour change; not greater than No. 8 Degree of chalking; no checking or cracking

Total dry film thickness (µm)

≥ 25

19Footnote (1)

Dry film hardness

No rupture

Pass

Adhesion - dry

No removal of film

Pass

Adhesion - wet

No removal of film

Pass

Impact resistance

No removal of film

Pass

Abrasion resistance

Coefficient value ≥ 40

Pass

Acid resistance - 10% sulphuric acid

No loss of integrity or appreciable change

Pass

Acid resistance - 10% hydrochloric acid

No loss of integrity or appreciable change

Pass

Acid resistance - 10% nitric acid

No loss of integrity or appreciable change

Pass

Salt spray resistance

≥ 7 rating

Pass

Wind Uplift Results for the Product

Pressure (kPa)

Time (s)

Requirement

ResultFootnote (1)

0.5

10

No evidence of deformation, permanent damage or failure

Pass

1.0

10

No evidence of deformation, permanent damage or failure

Pass

1.4

10

No evidence of deformation, permanent damage or failure

Pass

1.9

10

No evidence of deformation, permanent damage or failure

Pass

2.9

10

No evidence of deformation, permanent damage or failure

Pass

3.8

10

No evidence of deformation, permanent damage or failure

Pass

4.3

10

No evidence of deformation, permanent damage or failure

Pass

4.8

10

No evidence of deformation, permanent damage or failure

Shingles pulled away from the deck; fastener and clip pull-out.

Dynamic Pressure Water Infiltration Results for the Product

Wind Speed (km/h)

Simulated Rainfall (L/m2·min)

Time (s)

Requirement

ResultFootnote (1)

34 59

3.4

5

No leakage or damage

Pass

84 96

3.4

5

No leakage or damage

Pass

104 117

3.4

5

No leakage or damage

Pass

117 144

3.4

5

No leakage or damage

Pass

154 170

3.4

5

No leakage or damage

Pass