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[CCMC 13011-R] CCMC Canadian code compliance evaluation

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

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Compliance opinion

It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as metal roofing systems in accordance with the conditions and limitations stated in this evaluation, complies with the following code:

National Building Code of Canada 2015

ID Code provision Solution type
09-03-03-02-00-0- Galvanized Sheet SteelAcceptable
09-26-01-02-00-0- Roofs shall be protected with roofing, i ...Acceptable
09-26-02-00-00-0-009.26.2. Roofing MaterialsAlternative
09-26-13-01-00-0- ThicknessAcceptable

Ontario Building Code

Ruling No. 08-05-190 (13011-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 2017-01-30 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(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

MetalWorks® StoneCrest® and MetalWorks® AstonWood® Steel Shingles

Product description

The products are intended to be used on residential and light commercial buildings falling under the scope of Part 9, Housing and Small Buildings, of Division B of the NBC 2015.

The products are sheet-metal roofing systems consisting of a basic panel that is pressure-formed from 0.37-mm zinc alloy sheet steel that is finished with a fluoropolymer coating (70% polyvinylidene difluoride (PVDF)). The underside is finished with a corrosion-resistant coating.

The products have a nominal measurement of 1 010 mm × 320.5 mm. The panels are constructed with a 4-way locking system and installed with a concealed nailing clip.

The longitudinal cross-section of the MetalWorks® StoneCrest® Steel Shingle consists of 5 modules, each with a stone-embossed profile.

The longitudinal cross-section of the MetalWorks® AstonWood® Steel Shingle consists of 6 modules, each with a wood-embossed profile.

Both systems include accessory strips for hip and ridge cap, valley pan, gable and flashing.

Typical installation details and nailing clip for the products are shown in the following figures.

Figure 1. MetalWorks® StoneCrest® Steel Shingles
  1. potential clip location
*measurements in mm.



Figure 2. MetalWorks® AstonWood® Steel Shingles®
  1. potential clip location
*measurements in mm.



Figure 3. Installation detail for the products
  1. StoneCrest® or AstonWood® steel shingle
  2. roof sheathing
  3. #30 felt or equivalent
  4. nail clip



Figure 4. Fastening clip for the products
  1. 32.7 mm
  2. 28 mm
  3. 54.4 mm



Manufacturing plant

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

Product nameManufacturing plant
Joplin, MO, US
MetalWorks® StoneCrest® and MetalWorks® AstonWood® Steel ShinglesProduct 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 panels must be installed on roofs having a minimum slope of 1 in 4.
  • The panels must be installed over solid sheathing complying with the requirements of Subsection 9.23.16, Roof Sheathing, of Division B of the NBC 2015.
  • Flashing must be installed in compliance with the requirements of Subsection 9.26.4., Flashing at Intersections, of Division B of the NBC 2015.
  • The panels must be installed with eave protection as indicated in Subsection 9.26.5., Eave Protection for Shingles and Shakes, of Division B of the NBC 2015.
  • This evaluation report is based on the use of one layer of Type 30 organic felt underlay. This may not meet the underlayment requirements of the manufacturer at all roof slopes. Refer to the manufacturer’s installation instructions for proper underlayment usage.
  • Only fasteners and accessories supplied by the manufacturer must be used with the products. The fasteners and accessories must be compatible with the base metal of the panels.
  • The roofing system must be installed in strict conformance to the manufacturer’s instructions.
  • The roofing systems are for use in locations where access is limited for maintenance or repair purposes. When access to the roof is needed, temporary walkways or roof boards are recommended to avoid any permanent damage to the panels.
  • The products or their packaging must be clearly identified with “CCMC 13011-R.”


  Technical information

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

Evaluation requirements
Criteria number Criteria name
CCMC-TG-074113-15ACCMC Technical Guide for Metal Roof Panels
Material requirements
Table 1. Material properties of the products
Property Requirement Test method Result
Base metal requirements thickness of base metal (mm) ≥ 0.33 N/A 0.37
thickness of zinc coating (g/m2) ≥ 275 ASTM A 653/A 653M 315
Coating quality Smooth and uniform, free of pinholes, cracks, blisters and flaking CAN/CGSB-93.3 Pass
Coating thickness (thickness of PVDF), (µm) AstonWood® ≥ 25 ASTM B 487 25
StoneCrest® tile ≥ 25 ASTM B 487 27
StoneCrest® slate ≥ 25 ASTM B 487 28
Coating adhesion dry No removal of film ASTM D 3359Table footnote (1) Pass
wet No removal of film ASTM D 3359Table footnote (2) Pass
Coating hardness No rupture ASTM D 3363 Pass
Coating flexibility No flaking or microcracking CAN/CGSB-93.3 Pass
Coating humidity resistance No formation of blisters CAN/CGSB-93.3 Pass
Accelerated weathering (coating durability) No sign of any change ASTM G 153Table footnote (3) Pass
Salt spray resistance AstonWood® ≥ 7 ratingTable footnote (4) ASTM B 117Table footnote (5) 7
StoneCrest® tile/slate ≥ 7 ratingTable footnote (4) 10
Acid resistance 10% sulphuric acid No loss of integrity or appreciable change ASTM D 3260 Pass
10% hydrochloric acid No loss of integrity or appreciable change Pass
10% nitric acid No loss of integrity or appreciable change Pass
Impact resistance No removal of film ASTM D 4226Table footnote (6) Pass
Abraison resistance AstonWood® Coefficient value ≥ 40 ASTM D 968 44.4
StoneCrest® Coefficient value ≥ 40 41.7


Performance requirements

Traffic load

Results of traffic load testing
Property Requirement Result
Traffic load of 900 N No sign of any plastic deformation or permanent openings at the lap that would adversely affect the function of the roofing system Pass


Wind uplift

Table 2. Results of testing wind uplift for the products
Pressure (kPa) Time (s) Requirement ResultTable footnote (1)
0.5 10




No evidence of deformation, permanent damage or failure

1.0 10 Pass
1.4 10 Pass
1.9 10 Pass
2.9 10 Pass
3.8 10 Pass
4.3 10 Shingle unclipped
4.8 10


Dynamic pressure water infiltration

Table 3. Results of testing dynamic pressure water infiltration for the products
Wind speed (km/h) Simulated rainfall (L/m2·min) Time (min) Requirement ResultTable footnote (1)
34 – 59 3.4 5


No leakage or damage

84 – 96 3.4 5 Pass
104 – 117 3.4 5 Pass
117 – 144 3.4 5 Pass
154 – 170 3.4 5 Pass



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


© 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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From: National Research Council Canada

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