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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 Five-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 Wind Uplift Testing for Enhanced Six-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

Pass

-4.8

10

No evidence of deformation, permanent damage or failure

Fail

Results of Testing of Dynamic Pressure Water Infiltration for the Products (Six-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

No leakage or damage

Pass

140

200

5

No leakage or damage

Pass

170

200

5

No leakage or damage

Pass