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Results of Testing the Air Leakage Rate of the Product
Type of Wall Tested	S742 Classification^{Footnote (1)}	Air Leakage Rate After Wind Loading at 75 Pa ΔP	Air Leakage Rate After Wind Loading at –20°C and at 75 Pa ΔP^{Footnote (2)}	Requirement^{Footnote (3)}
HP+™ R Series	A1^{Footnote (3)} (≤ 0.05 L/(s∙m²))	0.016 L/(s·m²)	0.020 L/(s·m²)	Pass

Notes:

Footnote 1

The air leakage rate of the specimens was determined after structural aging of the ABS. Aging of the ABS was conducted to qualify it for various Q_1/50 design structural wind loads. For the stud wall, the ABS was subjected to a loading schedule involving: one-hour sustained positive and negative pressure set at 1 000 Pa; 2 000 cycles (two stages of 1 000 cycles) of positive and negative pressure set at 1 460 Pa; wind gust of positive and negative pressure set at 2 180 Pa; and deflection loading at ±1 460 Pa for ten seconds.

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Footnote 2

The air leakage rate was determined in accordance with ASTM E1424, "Standard Test Method for Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure and Temperature Differences Across the Specimen," at an air temperature of –20°C to verify any deformation causing leakage at low temperatures.

Return to footnote 2 referrer

Footnote 3

The air leakage rate requirement is based on Table 4.1.2 for the rate of permissible air leakage developed by CCMC/NRC, with input from an industry consortium. Information in Table 4.1.1 is deemed to meet the intent of the NBC 2010 and 2015 with regards to ABS performance.

Return to footnote 3 referrer

Permissible Air Leakage Rate
Water Vapour Permeance (WVP) of Outermost Layer of Wall Assembly (ng/(Pa·s·m²))	Maximum Permissible Air Leakage Rate L/(s·m²) @ 75 Pa ΔP
15 < WVP ≤ 60	0.05
60 < WVP ≤ 170	0.10
170 < WVP ≤ 800	0.15
> 800	0.20

Results of Durability Testing of Components in the "WALLTITE® v.3 Air Barrier System"
Component		Requirement	Result
Spray-applied polyurethane foam insulation:	"WALLTITE® v.3" polyurethane insulation	Air permeance before and after aging (ASTM D 726-84):< 10% increase	Passed
Spray-applied polyurethane foam insulation:	"WALLTITE® v.3" polyurethane insulation	Thermal resistance after heat aging and weathering: 90% retention	Passed
Transition membrane:	3M™ Air and Vapour Barrier 3015 by 3M	Physical properties before and after aging: 85% retention	Passed
Sealant:	"MasterSeal® NP 1™" by BASF or "Dymonic® 100" by Tremco	Complies with ASTM C 920-14	Passed

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