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Results of Testing the Material Requirements of the Product

Property

Unit

Requirement

Result Summer Grade

Result Winter Grade

Thickness variation

%

±10% of the manufacturer’s declared value

0.01Footnote (1)

0.05Footnote (1)

Hardness (Type 00 hardness gauge)

Report value

82.1

81.4

Water vapour permeance (WVP), Procedure B

ng/(Pa∙s∙m2)

±10% of the manufacturer’s declared value

1.32

1.24

Tensile strength at break machine direction

kN/mFootnote (2)

Report value

11.91

12.38

Tensile strength at break cross-machine direction

13.57

13.67

Results of Testing the Watertightness Performance of the Product

PropertyFootnote (1), Footnote (2)

Requirement

Result

Summer Grade

Winter Grade

Watertightness

No leakage

Pass

Water immersion/Watertightness

No leakage

Pass

Heat aging/Watertightness

No leakage

Pass

Chemical aging (NaOH)/Watertightness

No leakage

Pass

Chemical aging (acetic acid)/Watertightness

No leakage

Pass

UV aging/Watertightness

No leakage

Pass

Low temperature flexibility/Watertightness

No leakage

Pass

Table 4.2.2 Results of Testing the Crack Bridging Resistance of the Product

PropertyFootnote (1)

Requirement

Result

Summer Grade

Winter Grade

Crack bridging

30 cycles at –20°C 30 cycles at 30°C

No cracking, breakage, tearing, adhesion failure or other observable failures

Pass

Water immersion/ Crack bridging

30 cycles at −20°C 30 cycles at 30°C

No cracking, breakage, tearing, adhesion failure or other observable failures

Pass

Heat aging/Crack bridging

10 cycles at −20°C 10 cycles at 30°C

No cracking, breakage, tearing, adhesion failure or other observable failures

Pass

Chemical aging (NaOH)/Crack bridging

10 cycles at −20°C 10 cycles at 30°C

No cracking, breakage, tearing, adhesion failure or other observable failures

Pass

Chemical aging (acetic acid)/Crack bridging

10 cycles at −20°C 10 cycles at 30°C

No cracking, breakage, tearing, adhesion failure or other observable failures

Pass

UV aging/Crack bridging

10 cycles at −20°C 10 cycles at 30°C

No cracking, breakage, tearing, adhesion failure or other observable failures

Pass

Table 4.2.3 Results of Testing the Peel Adhesion Performance of the Product

PropertyFootnote (1)

UnitFootnote (2)

Requirement

Result

Summer Grade

Winter Grade

Peel adhesion

N/m

≥ 175

1 239

1 120

Water immersion/Peel adhesion

N/m

158 (≥ 90% of 175)

984

367

Heat aging/Peel adhesion

949

526

UV aging/Peel adhesion

2 581

592

Table 4.2.4 Results of Testing the Tensile Strength of the Product

PropertyFootnote (1)

UnitFootnote (2)

RequirementFootnote (3)

ResultFootnote (4)

Summer Grade

Winter Grade

Heat aging/Tensile strength

kN/m

Summer grade ≥ 10.72 Winter grade ≥ 11.14 (≥ 90% of original value)

13.00

13.08

Chemical aging (NaOH)/Tensile strength

12.85

12.28

Chemical aging (acetic acid)/Tensile strength

12.12

11.93

UV aging/Tensile strength

11.96

11.93

Table 4.2.5 Results of Testing the Performance Properties of the Lap Joint on the ProductFootnote (1)

PropertyFootnote (2)

Requirement

Result

Summer Grade

Winter Grade

Water immersion/WatertightnessFootnote (3)

No leakage

Pass

Heat aging/WatertightnessFootnote (3)

No leakage

Pass

Water immersion/Peel adhesion

≥ 158 N/m (≥ 90% of 175)

1 280

982

Heat aging/Peel adhesion

1 167

516

UV aging/Peel adhesion

1 254

775

Lap joint shear test

No bounding and slippage failure prior to reaching the breaking strength of the membrane

Pass

Heat aging/Lap joint shear test

No bounding and slippage failure prior to reaching the breaking strength of the membrane

Pass