[CCMC 13011-R] CCMC Canadian code compliance evaluation
From: National Research Council Canada
TAMKO Building Products LLC
198 Four States Drive P.O. box 97
|Product name:||MetalWorks® StoneCrest® and MetalWorks® AstonWood® Steel Shingles|
|Code compliance:||NBC 2015, OBC|
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.
Code 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|
|09-03-03-02-00-0-00||188.8.131.52. Galvanized Sheet Steel||Acceptable|
|09-26-01-02-00-0-00||184.108.40.206.(1) Roofs shall be protected with roofing, i ...||Acceptable|
|09-26-02-00-00-0-00||9.26.2. Roofing Materials||Alternative|
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 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 nameMetalWorks® StoneCrest® and MetalWorks® AstonWood® Steel Shingles
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.
This evaluation is valid only for products produced at the following plant:
|Product name||Manufacturing plant|
|Joplin, MO, US|
|MetalWorks® StoneCrest® and MetalWorks® AstonWood® Steel Shingles||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 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.”
This evaluation is based on demonstrated conformance with the following criteria:
|Criteria number||Criteria name|
|CCMC-TG-074113-15A||CCMC Technical Guide for Metal Roof Panels|
|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|
|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|
|Pressure (kPa)||Time (s)||Requirement||ResultTable footnote (1)|
No evidence of deformation, permanent damage or failure
Dynamic pressure water infiltration
|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|
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
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.
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© His Majesty the King in Right of Canada, as represented by the National Research Council of Canada, 2022
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