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Galvanized and Aluminum-Zinc Alloy Coated Steel Base Material Requirements and Performance Data

Property

Requirement

Result

Thickness (mm)

≥ 0.33

0.66

Thickness of zinc coating ( g/m2 )

≥ 275

291

PVDF prefinished coating thickness (µm)

≥ 25

29.9

PVDF prefinished coating hardness

No rupture

Pass

PVDF prefinished coating adhesion - dry

No removal of film

Pass

PVDF prefinished coating adhesion - wet

No removal of film

Pass

Impact resistance

No removal of film

Pass

Salt spray resistance

≥ 7 rating

8

Accelerated weathering (durability)

No change

Pass

PVDF finished abrasion resistance

Coefficient value ≥ 40

37Footnote (1)

Acid resistance

No loss of integrity or appreciable change

Pass

Flexibility

No flaking or cracking

Pass

Results of Wind Uplift Testing for Standard Four Screw Installation

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

-2.4

10

No evidence of deformation, permanent damage or failure

Pass

-2.9

10

No evidence of deformation, permanent damage or failure

Pass

-3.4

10

No evidence of deformation, permanent damage or failure

Fail

Results of Wind Uplift Testing for High Wind Seven Screw Installation

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

-2.4

10

No evidence of deformation, permanent damage or failure

Pass

-2.9

10

No evidence of deformation, permanent damage or failure

Pass

-3.4

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

Fail

Results of Testing of Dynamic Pressure Water Infiltration for the Products (seven screw installation)

Wind SpeedFootnote (1) (km/h)

Simulated Rainfall (mm/h)

Time (min)

Requirement

ResultFootnote (2)

80

200

5

No leakage or damage

Pass

100

200

5

Pass

140

200

5

Pass

170

200

5

Pass