[CCMC 14382-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

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 an alternative solution for thermal/fire protection where a fire rating is required for pipes, ventilation ducts, and cooking exhaust ductwork 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
03-01-07-01-00-0-003.1.7.1. Determination of RatingsAlternative
03-06-03-05-00-0-003.6.3.5. Grease Duct EnclosuresAlternative
03-06-05-04-00-0-003.6.5.4. Coverings, Linings, Adhesives and InsulationAcceptable
03-06-05-05-00-0-003.6.5.5. Insulation and CoveringsAcceptable
06-05-01-01-00-0-006.5.1.1. Insulation and CoveringsAcceptable
09-33-06-04-00-0-009.33.6.4. Coverings, Linings, Adhesives and InsulationAcceptable
09-33-08-02-00-0-009.33.8.2. Insulation and CoveringsAcceptable

Ontario Building Code

Ruling No. 21-04-367 (14382-R) authorizing the use of this product in Ontario, subject to the terms and conditions contained in the Ruling, was made by the Minister of Municipal Affairs and Housing on 2021-04-12 pursuant to s.29 of the Building Code Act, 1992 (see Ruling for terms and conditions). This Ruling is subject to periodic revisions and updates.


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:

  • CL4FIRE Code-96™ Grease Duct Insulation System (CL4)
  • CL4Fire RED

Product description

The products are a duct/pipe wrap insulation made from calcium, magnesium, and silica encapsulated by a fibre-reinforced foil. The product is 38 mm (1 ½ in.) thick and has a density of 96 kg/m3 (6 lb./ft.3). It is available in rolls of various widths and lengths. It is installed around pipes and ducts, overlapped, taped and or pinned as necessary to provide continuity. All overlapping, sealing materials shall be fully compatible with the product and as recommended by the manufacturer’s written instructions.

Please note that CL4Fire Red and CL4Fire Code 96TM Grease Duct Insulation System (CL4) are identical products just labeled differently.

A roll of the CL4 fire duct wrap insulation

Figure 1. (a) CL4Fire Red (b) CL4Fire Code 96TM Grease Duct Insulation System (CL4)

 

 

An example of CL4 installed on a pipe

Figure 2. Product installation

Manufacturing plant

This evaluation is valid only for products produced at the following plant:

Product namesManufacturing plant
London, ON, CA
CL4FIRE Code-96™ Grease Duct Insulation System (CL4)Product evaluated by the CCMC
CL4Fire REDProduct 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 product’s fire ratings and corresponding installation instructions are based solely on Quality Auditing Institute Ltd.’s (QAI) Building Listing Program under listings F405-1-1, F405-1-2, F405-1-3, and F405-1-4.
  • The product shall be applied directly to the ductwork and piping in strict accordance with the listed systems referenced above and in the manufacturer’s instructions.
  • The maximum service temperature is 120°C.
  • The product is limited for use with grease ducts with the following characteristics:
    • Maximum duct size: 0.5806 m2 (900 in.2) with a maximum 0.92 m (36 in.) dimension.
    • Minimum duct wall thickness: 1.6 mm (16 gauge).
    • Ducting is limited to rectangular, square or circular cross-sections.
    • Ducting is to conform to Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) requirements.
  • The product is limited for use with ventilation ducts of the following:
    • Maximum duct size: 1.3316 m2 (2 064 in.2) with a maximum 2.18 m (86 in.) dimension.
    • Minimum duct wall thickness: 0.64 mm (22 gauge).
    • Ducting is limited to rectangular, square or circular cross-sections.
    • Ducting is to conform to Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) requirements.
  • The product is limited to a maximum 200 mm outside diameter (8 in.) made from Schedule 10 steel, cast iron or copper for piping applications.
  • Duct enclosures shall provide mechanical and structural integrity, resiliency, and stability when subjected to expected building environmental conditions, duct movement, under general operating conditions, and duct movement as a result of interior and exterior fire conditions. These conditions should be reviewed prior to installation and if additional reinforcement is deemed necessary by the authority having jurisdiction (AHJ), the addition of reinforcing wire mesh can be added over the exterior of any ductwrap installation.
  • The phrase “CCMC 14382-R” must be clearly identified on the product’s label and/or packaging.

  Technical information

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

Evaluation requirements
Criteria number Criteria name
CCMC-TG-230719-15CCMC Technical Guide for Fire Resistance of HVAC Piping Insulation

The proponent submitted documentation from CCMC-recognized laboratories, which showed that the material and/or accessories of the components used in the product met the specified standards as referenced below.

Material requirements
Table 1.

Requirements for physical properties of the product

Property Requirement Result
Length -1%, +3% 0%
Width 0, +3% 1%
Thickness 90% of published value 99%
Hot surface performance at maximum service temperature of 120°CTable footnote (1) No flaming, glowing, smouldering or smoking Pass
Exposed surface temperature at maximum service temperatureTable footnote (2) Exposed surface < 70°C 47°C
Linear shrinkage – length < 4% 0.4%
Linear shrinkage – width < 4% 0.7%
Corrosiveness No greater than sterile cotton Pass
Surface burning characteristics – flame-spread value < 25 10
Surface burning characteristics – smoke-developed classification < 50 10
Thermal conductivity – original Report value 0.035 W/m·°K
Thermal conductivity – after aging Report value 0.035 W/m·°K
Dimensional change < 0.5% 0.1%
Water vapour permeance < 1.15 ng/(Pa·s·m2) 0.46 ng/(Pa·s·m2)
Emittance < 0.1 0.034

 

Table 2. Requirements for physical properties of aged product
Property Requirement Result
Humidity resistance (long term testing) No evidence of delamination, corrosion or metallization Pass
Water vapour permeance < 1.15 ng/(Pa·s·m2) 6.29 ng/(Pa·s·m2)Table footnote (1)
Emittance (after aging) < 0.1 0.05
Performance requirements

The results of testing the product are summarized in the table below. The performance of the product has been tested in accordance with the CCMC Technical Guide for qualification for use as fire duct wrap insulation. The product’s fire ratings are based solely on QAI listings F405-1-1, F405-1-2, F405-1-3, and F405-1-4.

Table 3. Results of testing the performance requirements of the product
Property Requirement Result
Pipes and ductworkTable footnote (1) Report fire-resistance rating 1 hour at 38 mm thickness (butt joint)
Report fire-resistance rating 2 hours at 38 mm thickness (76 mm joint overlap)
Grease ductsTable footnote (2)Table footnote (3) Report fire-resistance rating 2 hours at 38 mm thickness (76 mm joint overlap)
Report fire-resistance rating 2 hours at 76 mm thickness
 
CL4 Grease Duct Insulation System

Grease Duct Insulation System is rated for 229 mm (9 in.) clearance from duct to combustibles using one layer.  CL4 is rated for 0 mm clearance from the outside of the insulation to combustibles using one layer of CL4Fire Code 96TM on the inside or outside layer and one additional layer of CL4 (Red or Code 96) for a total thickness of 76 mm (3 in.) overall.

All of the relevant requirements within NFPA 96, “Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations,” must be satisfied to demonstrate compliance for this evaluation.

Installation specifics for the CL4 Grease Duct Insulation System

Figure 3. Installation of CL4 Grease Duct Insulation System

  1. The product.
  2. 23 cm (9 in.) minimum clearance from duct to combustibles when 1-layer of CL4Fire Code 96TM is installed.
  3. 0 mm clearance allowed to combustible materials such as wood when 2-layers (76 mm thickness) of CL4 is installed.
  4. 23 cm (9 in.) minimum clearance from duct to combustibles such as wood when 1 layer of CL4Fire Code 96TM is installed. 
  5. Inside duct.
  6. Steel banding.

Notes:

  • Single 38 mm (1 ½ in.) thick layer installation of CL4Fire Code 96TM wrap allows for minimum 23 cm (9 in.) clearance from ductwork to combustibles with 76 mm (3 in.) overlaps at all single layer installation joints.
  • Two 38 mm (1 ½ in.) layers of insulation are required for 0 mm clearance from the first layer using CL4 with tightly butted seams and the outer layer with CL4 installed with tightly butted seams staggered a minimum of 152 mm (6 in.) from the first layer seams. The exterior layer of CL4 wrap must exceed the size of the interior layer only if CL4 is installed on the interior layer. Butted seams on the first layer of the wrap must always be covered with the second layer, which is required to overlap by a minimum of 76 mm (3 in.).
  • CL4Fire Code 96TM is to be installed continuously along the ductwork in the same manner as a gypsum shaft. Intermittent installation with a single layer is prohibited.  Only the second layer may be intermittent based on clearance requirements as outlined in figure 3.
  • As required by NFPA 96, field-applied and factory-built grease duct enclosures shall provide mechanical and structural integrity, resiliency, and stability when subjected to expected building environmental conditions, duct movement, under general operating conditions, and duct movement as a result of interior and exterior fire conditions. These conditions should be reviewed prior to installation.
  • Install firestops and access panels as outlined in the QAI listing F405-1-3. The reduced clearance access panel requires only 2 layers of CL4 insulation as per the manufacturer’s instructions.

Administrative information

Disclaimer

This evaluation is issued by the Canadian Construction Materials Centre (CCMC), a part of the Construction Research Centre at the National Research Council of Canada (NRC). The evaluation must be read in the context of the entire CCMC Registry of Product Assessments and the legislated applicable building code in effect.

The CCMC was established in 1988 on behalf of the applicable regulator (i.e., the provinces and territories) to ensure—through assessment—conformity of alternative and acceptable solutions to regional building codes as determined by the local authority having jurisdiction (AHJ) as part of the issuance of a building permit.

It is the responsibility of the local AHJs, design professionals, and specifiers to confirm that the evaluation is current and has not been withdrawn or superseded by a later issue. Please refer to the website or contact:

Canadian Construction Materials Centre
Construction Research Centre
National Research Council of Canada
1200 Montreal Road
Ottawa, Ontario, K1A 0R6
Telephone: 613-993-6189
Fax: 613-952-0268

The NRC has evaluated the material, product, system or service described herein only for those characteristics stated 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 (i.e., AHJs, design professionals and specifiers). This evaluation is only valid when the product is installed in strict compliance with the stated conditions and limitations of evaluation and the applicable local building code. In circumstances where no applicable local building permit is issued and that no confirmation of compliance ‘for use in the intended field application’ is undertaken, this evaluation is null and void in all respects. This evaluation is provided without representation, warranty, or guarantee of any kind, expressed, or implied, and the NRC provides no endorsement for any evaluated material, product, system or service described herein. The NRC accepts no responsibility whatsoever arising in any way from any and all use and reliance on the information contained in this evaluation with respect to its compliance to the referenced code(s) and standard(s). 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

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In the case of any discrepancy between the English and French version of this document, the English version shall prevail.

Copyright

© 2022 Her Majesty the Queen in Right of Canada, as represented by the National Research Council of Canada.

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.

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