[CCMC 14083-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

CCMC number:

14083-R

Status:

Active

Issue date:

2018-01-26

Modified date:

2022-11-17

Evaluation holder:

GAF

1 Campus Drive
Parsippany NJ 07054
United States
Website: www.gaf.ca
Telephone: 855-492-8085

Product names:

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

Code compliance:

NBC 2015

Evaluation requirements:

CCMC-TG-077226-15 "CCMC Technical Guide for Ridge Vents"

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

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Code 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
09-19-01-02-00-0-00	9.19.1.2. Vent Requirements	Alternative

The above opinion is 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 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 names	Manufacturing plants
Product names	Acworth, GA, US	Cumming, GA, US	New Columbia, PA, US
Cobra^® Exhaust Vent	Product evaluated by the CCMC	Product evaluated by the CCMC	Product evaluated by the CCMC
Cobra^® Ridge Runner^® Exhaust Vent	Product evaluated by the CCMC	Product evaluated by the CCMC	Product evaluated by the CCMC
Cobra^® Snow Country Advanced™ Exhaust Vent	Product evaluated by the CCMC	Product evaluated by the CCMC	Product evaluated by the CCMC
Cobra^® Snow Country™ Exhaust Vent	Product evaluated by the CCMC	Product evaluated by the CCMC	Product 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-077226-15	CCMC 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
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

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.

Code Compliance via Alternative Solutions

Where a design differs from the acceptable solutions in Division B, then it should be treated as an "alternative solution." A proponent of an alternative solution must demonstrate that the alternative solution addresses the same issues as the applicable acceptable solutions in Division B and their attributed objectives and functional statements. However, because the objectives and functional statements are entirely qualitative, demonstrating compliance with them in isolation is not possible. Therefore, Clause 1.2.1.1.(1)(b) identifies the principle that Division B establishes the quantitative performance targets that alternative solutions must meet. In many cases, these targets are not defined very precisely by the acceptable solutions [...] Nevertheless, Clause 1.2.1.1.(1)(b) makes it clear that an effort must be made to demonstrate that an alternative solution will perform as well as a design that would satisfy the applicable acceptable solutions in Division B—not “well enough” but “as well as.”

National Building Code of Canada, Sentence A-1.2.1.1.(1)(b)

The CCMC has determined that compliance with this provision of the Code has been demonstrated as an Alternative Solution. The evaluation report provides a summary of the basis of CCMC's compliance opinion.

CCMC's code compliance opinions

All CCMC evaluation reports are opinions of code compliance established in accordance with the National Building Code of Canada, Subsection 1.2.1. "Compliance with this Code," which requires compliance to be achieved by:

complying with the applicable acceptable solutions in Division B, or
using an alternative solution that will achieve at least the minimum level of performance required by Division B in the areas defined by the objective and functional statements attributed to the applicable acceptable solutions.

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Date modified:: 2022-11-18