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Material Properties of the Membrane
Property		Unit	Requirement	Result Summer Grade	Result Winter Grade
Thickness variation		mm	Maximum 1.1 mm Minimum 0.9 mm (±10% of the manufacturer’s declared value) ^{Footnote (1)}	0.93	0.92
Hardness (Type 00 hardness gauge)		n/a	Report value	89.8	95.4
Water vapour permeance, Procedure B		ng/(Pa·s·m²)	Report value	1.45	1.65
Tensile strength at break:	machine direction	kN/m ^{Footnote (2)}	Report value	12.40	12.85
Tensile strength at break:	cross-machine direction	kN/m ^{Footnote (2)}	Report value	13.67	12.69

Watertightness Performance of the Membrane
Property^{Footnote (1)} ^{Footnote (2)}	Requirement	Result Summer Grade	Result Winter Grade
Watertightness	No leakage	Passed	Passed
Water immersion/watertightness	No leakage	Passed	Passed
Heat aging/watertightness	No leakage	Passed	Passed
Chemical aging (NaoH)/watertightness	No leakage	Passed	Passed
Chemical aging (acetic acid)/watertightness	No leakage	Passed	Passed
UV aging/watertightness	No leakage	Passed	Passed
Low temperature flexibility at -20°C/watertightness	No leakage	Passed	Passed

Crack Bridging Resistance of the Membrane
Property^{Footnote (1)}		Requirement	Result^{Footnote (2)} Summer Grade	Result^{Footnote (2)} Winter Grade
Crack bridging	30 cycles at -20°C	No visible cracking, blistering, peeling or other defects visible to the naked eye when lit with a 60-watt incandescent light at a 300-mm distance	Passed	Passed
Crack bridging	30 cycles at 30°C		Passed	Passed
Water immersion/crack bridging	30 cycles at -20°C	No visible cracking, blistering, peeling or other defects visible to the naked eye when lit with a 60-watt incandescent light at a 300-mm distance	Passed	Passed
Water immersion/crack bridging	30 cycles at 30°C		Passed	Passed
Heat aging/crack bridging	30 cycles at -20°C	No visible cracking, blistering, peeling or other defects visible to the naked eye when lit with a 60-watt incandescent light at a 300-mm distance	Passed	Passed
Heat aging/crack bridging	30 cycles at 30°C		Passed	Passed
Chemical aging (NaOH)/crack bridging	10 cycles at -20°C	No visible cracking, blistering, peeling or other defects visible to the naked eye when lit with a 60-watt incandescent light at a 300-mm distance	Passed	Passed
Chemical aging (NaOH)/crack bridging	10 cycles at 30°C		Passed	Passed
Chemical aging (acetic acid)/crack bridging	10 cycles at -20°C	No visible cracking, blistering, peeling or other defects visible to the naked eye when lit with a 60-watt incandescent light at a 300-mm distance	Passed	Passed
Chemical aging (acetic acid)/crack bridging	10 cycles at 30°C		Passed	Passed
UV aging/crack bridging	10 cycles at -20°C	No visible cracking, blistering, peeling or other defects visible to the naked eye when lit with a 60-watt incandescent light at a 300-mm distance	Passed	Passed
UV aging/crack bridging	10 cycles at 30°C		Passed	Passed

Peel Adhesion Performance of the Membrane over ICF
Property^{Footnote (1)}	Unit^{Footnote (2)}	Requirement	Result^{Footnote (3)} Summer Grade	Result^{Footnote (3)} Winter Grade
Peel adhesion at 23°C	N/m	≥ 193	1 028	632
Peel adhesion at maximum interface temperature:^{Footnote (4)} ^{Footnote (5)} 40°C	N/m		332	216
Peel adhesion at lowest interface temperature:^{Footnote (4)} 5°C for the winter grade	N/m		n/a	770
10°C for the summer grade	N/m		771	n/a
UV exposure on ICF substrate/rasping and cleaning of the ICF/peel adhesion with interface at 40°C^{Footnote (4)} ^{Footnote (6)}	N/m	≥ 174 (90% of 193)	361	242
Heat aging on specimen/peel adhesion at 23°C^{Footnote (7)}	N/m		617	588
UV exposure on specimen/peel adhesion with interface at 40°C^{Footnote (4)} ^{Footnote (7)}	N/m		467	434

Notes:

Footnote 1

The "/" under "Property" indicates that a test sequence was performed (e.g., a heat aging test was performed followed by a peel adhesion test).

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Footnote 2

The peel adhesion is expressed as a force unit per metre width of the specimen.

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Footnote 3

All specimens were prepared with the NUDURA® Membrane Primer applied over the ICF substrates.

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Footnote 4

The interface consists of the separated surface between the ICF substrate and the membrane.

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Footnote 5

The results show that the peel adhesion of the membrane can be maintained greater than 193 N/m if the interface temperature does not exceed 40°C. The maximum interface temperature of 40°C was established through a research project conducted by the National Research Council of Canada.

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Footnote 6

Rasping was conducted using a 12-grit sandpaper in a hand sander. Five passes (back and forth) across the surface were performed on each sample. Cleaning was done using a whisk to remove dust and particles left behind.

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Footnote 7

The specimen consists of the membrane installed on an ICF substrate.

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Peel Adhesion Performance of the Membrane over Concrete
Property^{Footnote (1)}	Unit^{Footnote (2)}	Requirement	Result Summer Grade	Result Winter Grade
Peel adhesion at 23°C	N/m	≥ 175	673	750
Water immersion/peel adhesion at 23°C	N/m	≥ 158 (90% of 175)	1 575	247
Heat aging/peel adhesion at 23°C	N/m		367	452
UV aging/peel adhesion at 23°C	N/m		1 292	749

Tensile Strength Performance of the Membrane
Property^{Footnote (1)}	Unit^{Footnote (2)}	Requirement	Result^{Footnote (1)} Summer Grade	Result^{Footnote (1)} Winter Grade
Heat aging/tensile strength	kN/m	Summer grade ≥ 11.16 Winter grade ≥ 11.42 (90% of original value)^{Footnote (3)}	13.74	13.57
Chemical aging (NaOH)/tensile strength			12.97	14.02
Chemical aging (acetic acid)/tensile strength			12.83	13.65
UV aging/tensile strength			11.57	12.45

Notes:

Footnote 1

The "/" under "Property" indicates that a test sequence was performed (e.g., a heat aging test was performed followed by a tensile strength test).

Return to footnote 1 referrer

Footnote 2

The tensile strength is expressed as a force unit per metre width of the specimen due to the particular behaviour of the multi-layered membrane.

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Footnote 3

The original values for tensile strength are shown in Table 4.1.1.

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Footnote 4

The aging test sequences were conducted with specimens that showed the weakest tensile test results prior to aging either in the machine or cross-machine direction.

Return to footnote 4 referrer

Performance Properties of the Lap Joint
Property^{Footnote (1)} ^{Footnote (2)}	Unit^{Footnote (3)}	Requirement	Result Summer Grade	Result Winter Grade
Water immersion/watertightness	n/a	No leakage	Passed^{Footnote (4)}	Passed^{Footnote (4)}
Heat aging/watertightness	n/a	No leakage	Passed^{Footnote (4)}	Passed^{Footnote (4)}
Water immersion/peel adhesion at 23°C	N/m	≥ 174 (90% of 193)^{Footnote (3)}	676	401
Heat aging/peel adhesion at 23°C	N/m		546	384
UV aging/peel adhesion at 23°C	N/m		532	575
UV aging/peel adhesion with lap joint interface at 40°C	N/m		333	254
Lap joint shear at 23°C	kN/m	Summer grade ≥ 6.2 Winter grade ≥ 6.3 (50% of original tensile strength of the membrane)^{Footnote (5)}	10.67	9.88
Heat aging/lap joint shear at 23°C	kN/m		8.27	8.19
Lap joint shear at 10°C	kN/m		8.76	n/a
Lap shear at –10°C	kN/m		n/a	8.76
Peel adhesion at 10°C	N/m	193	3 22	n/a
Peel adhesion at –10°C	N/m	193	n/a	3 555

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