Language selection

Search


[CCMC 14083-R] CCMC Canadian code compliance evaluation

In most jurisdictions this document is sufficient evidence for approval by Canadian authorities.

Learn more about CCMC recognition Look for the trusted CCMC mark on products to verify compliance.

Compliance opinion

It is the opinion of the Canadian Construction Materials Centre that the evaluated products, when used as a natural vent for sloped roofs in accordance with the conditions and limitations stated in this evaluation, comply with the following code:

National Building Code of Canada 2015

ID Code provision Solution type
09-19-01-02-00-0-009.19.1.2. Vent RequirementsAlternative

The above opinion(s) is/are based on the evaluation by the CCMC of technical evidence provided by the evaluation holder, and is bound by the stated conditions and limitations. For the benefit of the user, a summary of the technical information that forms the basis of this evaluation has been included.

Product information

Product names

  • Cobra®Exhaust Vent
  • Cobra®Ridge Runner®Exhaust Vent
  • Cobra®Snow Country Advanced™ Exhaust Vent
  • Cobra®Snow Country™ Exhaust Vent

Product description

The products are installed along the ridge of sloped roofs in combination with eave or soffit vents to provide natural ventilation of enclosed roof space.

Cobra® Exhaust Vent for Roof Ridge is a roll-style ridge vent product made from a non-woven matrix of polyester fibres bonded together to form a mat. The product is 19 mm thick for the hand nail version and 16 mm thick for the nail gun version. The product is available in widths of 267 mm or 299 mm and in rolls that are 6.1 m or 15.2 m long. For the hand nail version of the product, 64-mm Smart Nails are included, and 45 mm collated nails are included for the nail gun version.

Cobra® Ridge Runner® Exhaust Vent for Roof Ridge is a rigid roll-style vent made from polypropylene with ventilation openings along the sides of the roll and has a non-woven polymeric filter material. The product is 16 mm thick by 292 mm wide and is available in rolls that are 6 m or 9 m long. The product also includes 45 mm collated nails.

Cobra® Snow Country™ Exhaust Vent for Roof Ridge is a rigid panel vent made from polypropylene with ventilation openings along the sides of the panel and has a non-woven fibreglass filter material. The product is 292 mm wide by 1.2 m long and available in thicknesses of 22 mm. The panels interlock with each other to form a continuous ridge vent.

Cobra® Snow Country Advanced™ Exhaust Vent for Roof Ridge is a rigid panel vent made from polypropylene with ventilation openings along the sides and has a non-woven fibreglass filter material. The product is 1.2 m long and is available in thicknesses of 22 mm and widths of 229 mm and 292 mm. The panels interlock with each other to form a continuous ridge vent. Each vent section also includes 76-mm ring shank nails.

Manufacturing plants

This evaluation is limited to products produced at the following plants:

Product namesManufacturing plants
Acworth, GA, USCumming, GA, USNew Columbia, PA, US
Cobra®Exhaust VentProduct evaluated by the CCMCProduct evaluated by the CCMCProduct evaluated by the CCMC
Cobra®Ridge Runner®Exhaust VentProduct evaluated by the CCMCProduct evaluated by the CCMCProduct evaluated by the CCMC
Cobra®Snow Country Advanced™ Exhaust VentProduct evaluated by the CCMCProduct evaluated by the CCMCProduct evaluated by the CCMC
Cobra®Snow Country™ Exhaust VentProduct evaluated by the CCMCProduct evaluated by the CCMCProduct evaluated by the CCMC

Product evaluated by the CCMC Indicates that the product from this manufacturing facility has been evaluated by the CCMC

  Conditions and limitations

The CCMC’s compliance opinion is bound by this product being used in accordance with the conditions and limitations set out below.

  • The ridge vent alone may not provide the minimum unobstructed vent area. In such cases, the total unobstructed vent area must not be less than 1/300 of the insulated ceiling area in accordance with Sentence 9.19.1.2.(1) of Division B of the NBC 2015.
  • The products must be used in conjunction with venting located at a point lower than the product within the vented space.
  • The products are not intended to be used with gable-end louvres, turbines, roof vents or power vents.
  • The distribution of the venting must be in accordance with Sentence 9.19.1.2.(3) of Division B of the NBC 2015.
  • The minimum roof slope for Cobra® Exhaust Vent for Roof Ridge 1 in 6.
  • The minimum roof slope for Cobra® Ridge Runner® Exhaust Vent, Cobra® Snow Country™ Exhaust Vent, and Cobra® Snow Country Advanced™ Exhaust Vent for Roof Ridge is 1 in 4.
  • Truss lateral braces at the ridge must not interfere with the free opening of the feeder slot of the ridge vent.
  • The products must not be installed on roof hips.
  • The use of the products is limited to combustible construction.
  • When used on semi-detached houses where the separating firewalls run perpendicular to the ridge, the feeder slot of the ridge vent must end at least 910 mm from either side of the firewall.
  • Annual inspection and maintenance to remove debris from vents is recommended.
  • The products must be installed in accordance with the manufacturer’s installation instructions.
  • When designing for overall required venting, a reduction factor, such as 50%, should be applied to the measured effective venting area of the ridge vent.
  • The product packaging must be clearly identified with the phrase “CCMC 14083-R.” The CCMC evaluation is required to be on-site for verification that the product being installed is CCMC-certified and listed in CCMC 14083-R.

  Technical information

This evaluation is based on demonstrated conformance with the following criteria:

Evaluation requirements
Criteria number Criteria name
CCMC-TG-077226-15CCMC Technical Guide for Ridge Vents
Technical Evidence

The evaluation holder has submitted technical documentation for the CCMC evaluation. Testing was conducted at laboratories recognized by CCMC. The corresponding technical evidence for this product is summarized below.

Performance Requirements

Table 1. Results of testing the effective venting area of the products

Property

Unit

Cobra® Exhaust Vent Cobra® Exhaust Vent Cobra® Ridge Runner® Exhaust Vent Cobra® Snow Country Advanced™ Exhaust Vent Cobra® Snow Country Advanced™ Exhaust Vent 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

 

Table 2. Results of testing the performance of the products

Property

Requirement

Cobra® Exhaust Vent

Cobra® Ridge Runner® Exhaust Vent

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

Wind uplift – 70 cycles of 0 to 1 200 Pa

No damage

Pass

Pass

Pass

Wind uplift – 20 cycles of 0 to 1 800 Pa

No damage

Pass

Pass

Pass

Wind uplift – 20 cycles of 0 to 2 500 Pa

No damage

Pass

Pass

Pass

Watertightness – 80 km/h @ 15 mins

No water penetration

Pass

Pass

Pass

Watertightness – 0 km/h @ 5 mins

No water penetration

Pass

Pass

Pass

Watertightness – 100 km/h @ 15 mins

No water penetration

Pass

Pass

Pass

Watertightness – 0 km/h @ 5 mins

No water penetration

Pass

Pass

Pass

Watertightness – 120 km/h @ 15 min

No water penetration

Pass

Pass

Pass

Watertightness – 0 km/h @ 5 mins

No water penetration

Pass

Pass

Pass

Watertightness – 140 km/h @ 15 min

No water penetration

Pass

Pass

Pass

Watertightness – 0 km/h @ 5 mins

No water penetration

Pass

Pass

Pass

Watertightness – 170 km/h @ 15 min

No water penetration

Pass

Pass

Pass

Watertightness – 0 km/h @ 5 mins

No water penetration

Pass

Pass

Pass

 

Material Physical Properties

Table 3. 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

 

Table 4. 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

mm ≤ 5% from nominal as stated by the manufacturer

Pass

Width

mm ≤ 5% from nominal as stated by the manufacturer

Pass

Length

mm ≤ 5% from nominal as stated by the manufacturer

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

 

Durability

Table 5. Results of testing the durability of the roll-style ridge vent

Property

Unit

Requirement

Result @ 10% compresion

Result @ 25% compression

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

 

Table 6. 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

Dimensional change after heat aging – height

% of original

≤ 2

-0.2

Dimensional change after heat aging – width

% of original

≤ 2

0.5

Dimensional change after heat aging – 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

Administrative information

Use of Canadian Construction Materials Centre (CCMC) assessments

This assessment must be read in the context of the entire CCMC Registry of Product Assessments, any applicable building code or by-law requirements, and/or any other regulatory requirements (for example, the Canada Consumer Product Safety Act, the Canadian Environmental Protection Act, etc.).

It is the responsibility of the user to confirm that the assessment they are using is current and has not been withdrawn or superseded by a later version on the CCMC Registry of Product Assessments.

Disclaimer

The National Research Council of Canada (NRC) has evaluated only the characteristics of the specific product described herein. The information and opinions in this evaluation are directed to those who have the appropriate degree of experience to use and apply its contents (such as authorities having jurisdiction, design professionals and specifiers). This evaluation is valid when the product is used as part of permitted construction, respecting all conditions and limitations stated in the evaluation, and in accordance with applicable building codes and by-laws.

This evaluation is provided without representation, warranty or guarantee of any kind, expressed or implied, and the NRC provides no endorsement for any evaluated product. The NRC accepts no responsibility whatsoever arising in any way from any and all use of or reliance on the information contained herein or the use of any evaluated product. The NRC is not undertaking to render professional or other services on behalf of any person or entity nor to perform any duty owed by any person or entity to another person or entity.

Language

Une version française de ce document est disponible.
In the case of any discrepancy between the English and French version of this document, the English version shall prevail.

Copyright

© His Majesty the King in Right of Canada, as represented by the National Research Council of Canada, 2024

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the CCMC.

Page details

From: National Research Council Canada

Date modified: