[CCMC 14323-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

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Compliance opinion

National Building Code of Canada 2015

ID Code provision Solution type
09-27-02-00-00-0-009.27.2. Required Protection from PrecipitationAcceptable
09-27-03-00-00-0-009.27.3. Second Plane of ProtectionAcceptable
09-27-12-00-00-0-009.27.12. Vinyl SidingAlternative

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 name

ChamClad® Siding

Product description

The wall cladding profile is 152 mm wide (overall width 190 mm including a nailing flange) and 3 658 mm long, made of heavy-gauge polyvinyl chloride (PVC) and coated with a PVC film designed for exterior applications. The profiles are tongue and groove, and fastened to the building structure through pre-punched nailing slots located along the top edge of the profiles, which are concealed after the upper profile is installed. Accessories, including finish trim, starter strip and exterior outside corner, are also made of heavy-gauge PVC.

a image of the product

Figure 1. ChamClad® Siding

Manufacturing plant

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

Product nameManufacturing plant
Edmonton, AB, CA
ChamClad® SidingProduct 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 products are limited to use as exterior siding for the buildings falling within the scope of Part 9, Housing and Small Buildings, of Division B of the NBC 2015.
  • When installed, all the building elements relevant to the product must comply with the requirements of the NBC 2015.
  • The siding panels must be installed on furring providing a second plane of protection that consists of a continuous, clear, uninterrupted vented air space of not less than 10 mm outboard of the sheathing membrane.
  • The furring must be installed over the sheathing membrane.
  • The system requires flashing at appropriate locations in order to drain water to the outside.
  • Furring for the attachment of the cladding must not be less than 19 mm × 38 mm, securely nailed to the sheathing or framing, and spaced not more than 406 mm on centre (o.c.).
  • The product must be clearly identified with the phrase “CCMC 14323-R” on its packaging.

  Technical information

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

Evaluation requirements
Criteria number Criteria name
CCMC-TG-074633.07-15CCMC Technical Guide for Heavy Gage PVC Siding

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

Material requirements

Physical properties

Table 1. Results of testing the physical properties of the product
Property Unit Requirement Result
Thermal expansion °C–1 ≤ 8.1 × 105 5.9 × 105 Pass
Flammability Compound shall not exceed an average extent of burning of 25 mm, and the average time of burn shall not exceed 10 s Pass
Shrinkage – siding % ≤ 3% 0.2 Pass
Shrinkage – finish trim 0.1 Pass
Shrinkage – starter strip 0.1 Pass
Shrinkage – exterior outside corner 0.1 Pass
Warp mm ≤ 3 0.3 Pass
Impact resistance J ≥ 6.3 J at 23°C and ≥ 4.8 J at 0°C Pass
Surface distortion Free from bulges, waves or ripples Pass
Flexural strengthTable footnote (1) MPa Report value 22.5
Loss of flexural strength following soaking % ≤ 25 8 Pass
Thickness mm Face ≥ 0.7 mm 1.81 Pass
Nail slots ≥ 0.9 mm 1.72 Pass


Dimensional tolerance

Table 2. Results of testing the dimensional tolerance requirements of the product
Property Unit Requirement Result
Length mm ± 3.0 + 1.0 Pass
Width mm ± 3.0 – 1.0 Pass
Overall thickness mm ± 1.6 + 0.3 Pass
Squareness mm ± 4.0 – 1.0 Pass
Skew mm/m ≤ 1.3 of length 0 Pass
Edge straightness mm/m ≤ 1.3 of length and width + 0.4 Pass


Performance requirements

Cladding performance

Table 3. Results of testing the cladding performance of the product
Property Unit Requirement Result
Acid rain resistance The surface shall not have any defects or occurrences of new voids Pass
Residual hardness following acid rain exposure % Hardness of the panels after acid rain exposure shall not be less than 80% of the unexposed value 101 Pass
DurabilityTable footnote (1) The durability of the cladding is assessed by observing changes in appearance (e.g., cracking, crazing) Pass
Loss of flexural strength following durability exposure % ≤ 25 2.2 Pass
Accelerated weathering resistance No visual surface or physical changes such as cracking, flaking or any other deleterious effects after 2 000 h of UV exposure Pass


Wind load resistance

Table 4. Results of testing the wind load resistanceTable footnote footnote (1) Table footnote footnote (2) of the product at Q1/50 < 0.85 kPa
Property Requirement Result
Deformation (sustained pressure) No fracture or permanent deformation after sustained pressure of 850 Pa for 1 h Pass
Repeated positive and negative pressure test (cyclic pressure), 2 000 cycles No fracture or permanent deformation after the cyclic pressure 1 240 Pa Pass
Safety test (gust loads) Resist wind gusts to 1 850 Pa Pass


Additional performance data

Data in this section does not form part of the CCMC’s opinion in the code compliance opinion.

Fire performance

Table 5. Results of testing the fire performance of the productTable footnote footnote (1)
Property Test method Result
Flame-spread ratingTable footnote footnote (2) CAN/ULC-S102:2018 75
Smoke developed classificationTable footnote footnote (2) CAN/ULC-S102:2018 > 600 (estimated)Table footnote footnote (3)


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.


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.


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© 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.

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