Language selection

Search

Content page

From [Institution name]

Results of Testing the Effective Venting Area of the Products

Property

Unit

Result Cobra®

Result Exhaust Vent Cobra® Ridge Runner® Exhaust Vent

Result Cobra® Snow Country Advanced Exhaust Vent

Result Cobra® Snow Country Exhaust Vent

Width

mm

267

299

292

229

292

292

Effective venting Area

m2

0.0085

0.0068

0.0114

0.0191

0.0199

0.0191

Results of Testing the Performance of the Products

Property

Requirement

Result Cobra® Exhaust Vent

Result Cobra® Ridge Runner® Exhaust Vent

Result Cobra® Snow Country Exhaust Vent

Traffic load

900 N over 125 mm × 125 mm

No crack, split, shatter or tear

Pass

Pass

-

Wind uplift

40 cycles of 0 to 600 Pa

No damage

Pass

Pass

Pass

70 cycles of 0 to 1 200 Pa

20 cycles of 0 to 1 800 Pa

20 cycles of 0 to 2 500 Pa

Watertightness

80 km/h @15 mins

No water penetration

Pass

Pass

Pass

0 km/h @ 5 mins

100 km/h @15 mins

0 km/h @ 5 mins

120 km/h @ 15 min

0 km/h @ 5 mins

140 km/h @ 15 min

0 km/h @ 5 mins

170 km/h @ 15 min

0 km/h @ 5 mins

Physical Properties of the Roll-Style Ridge Vent

Property

Unit

Requirement

Result

Thickness

mm

≤ 5% from nominal as stated by the manufacturer

Pass

Width

mm

≤ 1% from nominal as stated by the manufacturer

Pass

Mass per unit area

kg/m2

Report nominal value

1.01

Physical Properties of the Rigid Plastic Ridge Vent

Property

Unit

Requirement

Result

Thickness of liner or shell

mm

≤ 5% from nominal as stated by the manufacturer

Pass

Overall height

Pass

Width

Pass

Length

Pass

Density

kg/m3

≥ 905

906

Tensile strength (yield)

MPa

≥ 19

10.4 Footnote (1)

Izod impact resistance at 23°C

J/m

≥ 70

254.4

Coefficient of linear expansion

μm/(m∙°C)

< 150

84.8

Classification deflection temperature under load

°C

Report value

82.7 @ 0.455 Mpa

Classification melt flow rate

g/10 mins

Report value

26.2

Results of Testing the Durability of the Roll-Style Ridge Vent

Property

Unit

Requirement

Result @ 10% compresion

Result compression @ 25%

Compressive Strength initial

kPa

Report value

1.92

5.73

Compressive Strength after UV weathering

% retention of original

≥ 90

171

153

Compressive Strength after UV weathering and heat aging

% retention of original

≥ 80

132

122

Results of Testing the Durability of the Rigid Plastic Ridge Vent

Property

Unit

Requirement

Result

Dimensional change after heat aging

thickness

% of original

≤ 2

1.8

height

% of original

≤ 2

-0.2

width

% of original

≤ 2

0.5

length

% of original

≤ 2`

-0.1

Tensile strength after heat aging

% retention of original

≥ 90

111

Izod impact after heat aging

% retention of original

≥ 80

121

Izod impact after heat aging and UV weathering

% retention of original

≥ 80

135