[CCMC 10241-R] CCMC Canadian code compliance evaluation
From: National Research Council Canada
Decra Roofing Systems
1230 Railroad Street
|Code compliance:||NBC 2015|
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Code compliance opinion
It is the opinion of the Canadian Construction Materials Centre that the evaluated products, when used as metal roofing 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|
|09-03-03-02-00-0-00||22.214.171.124. Galvanized Sheet Steel||Acceptable|
|09-26-01-02-00-0-00||126.96.36.199.(1) Roofs shall be protected with roofing, i ...||Acceptable|
|09-26-02-00-00-0-00||9.26.2. Roofing Materials||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.
- DECRA® Shake
- DECRA® Shingle Plus
- DECRA® Tile
The products are modular metal roofing panels intended for use in 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 consist of a basic panel that is pressure-formed from a 0.44-mm base metal thickness (BMT) sheet that is steel-coated with 189 g/m2 of aluminum/zinc alloy on each side. The underside is further protected by a rust-resistant acrylic seal coat. The upper surface is covered with an acrylic base coat onto which mineral aggregates are spread and then finished with a spray-on acrylic resin overglaze.
- The “DECRA® Tile” panel has a nominal measurement of 1 321 mm × 419 mm. The longitudinal panel cross-section consists of seven modules, each of which is 178 mm wide with a curved profile and raised flutes along the sides. There is an additional raised flute section along the side edge of each panel to enable interlocking with the adjacent panel. The butt edge of the panel is bent down 25 mm and follows the pan contour of the panel below it, thus providing an overlap for weathertightness and fastening. The top edge of each panel is bent up 25 mm and then folded back horizontally by 25 mm so the back of the panel rests on the batten below.
- The “DECRA® Shake” panel has a nominal measurement of 1 365 mm × 385 mm. The longitudinal panel cross-section consists of seven detailed “shake” impressions of varying widths. The butt edge of the panel is bent down by 25 mm while the top edge is bent up 25 mm and then folded back 65 mm so the back of the panel can be fastened on the batten below.
- The “DECRA® Shingle Plus” panel has a nominal measurement of 1 321 mm × 419 mm. The panel profile consists of raised and lowered sections that form a series of rectangular shingle shapes. The butt edge is bent down 25.4 mm to provide an overlap. The top edge is formed to rest on the batten and to receive the fasteners and lower edge of the panel above it. The side edges allow for an overlap with adjacent panels. Panels are to be installed working in a right to left direction.
All systems include accessory strips for hip and ridge cap and barge cover.
Panels of the products and typical installation details are shown in Figures 1 and 2. All products are installed with battens.
Product panels (images)
Typical installation details (images)
This evaluation is valid only for products produced at the following plant:
|Product names||Manufacturing plant|
|Corona, CA, US|
|DECRA® Shake||Product evaluated by the CCMC|
|DECRA® Shingle Plus||Product evaluated by the CCMC|
|DECRA® Tile||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 product is limited to installations where no fire-resistance rating is required.
- The panels must be installed over solid sheathing in compliance 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.
- The panels must be installed with an underlay consisting of two layers of No. 15 organic felt or one layer of Type 30 organic felt in conjunction with the panels.
- Only fasteners and accessories supplied by the manufacturer may be used in conjunction with the panels. Use #9 hex head fasteners specified by the manufacturer on the “DECRA® Tile and Shake,” and use #8 hex head fasteners specified by the manufacturer on the “DECRA® Shingle Plus.”
- Fastener spacing on shingles must be no more than 254 mm on centre (o.c.).
- The “DECRA® Tile/DECRA® Shake/ DECRA® Shingle Plus” systems must be installed by licensed installers in strict conformance to the manufacturer’s current 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 10241-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||--||0.44|
|Base metal requirements - thickness of aluminum-zinc coating (g/m2)||≥ 150||ASTM A653/A653M||189|
|Coating quality||Smooth and uniform,
free of pinholes, cracks, blisters
|Coating thickness (µm)||≥ 180||ASTM D1005||248|
|Coating adhesion||No removal of film||ASTM D3359Table footnote (1)||Pass|
|Coating hardness||75–80||ASTM D2240||88|
|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 G155Table footnote (2)||Pass|
|Salt spray resistance||≥ 7 ratingTable footnote (3)||ASTM B117Table footnote (4)||10|
|Granular mineral adhesion||≤ 2.0 g||ASTM D4977||0.84|
|Traffic load of 900 N||No signs of any plastic deformation or permanent openings at the lap that would adversely affect the function of the roofing system||PassTable footnote (1|
|Uniform load||The maximum load beyond which a deformation occurs that can adversely affect the performance of the roofing system||20 590 Pa|
|Pressure (kPa)||Time (s)||Requirement||ResultTable footnote (1)|
No evidence of deformation,
Dynamic pressure water infiltration
|Wind speed (km/h)||Simulated rainfall (L/m2 ·min)||Time (min)||Requirement||ResultTable footnote (1)|
No leakage or damage
Additional performance data
Data in this section does not form part of CCMC’s opinion.
All of the panels have met the Class C requirements according to CAN/ULC-S107 when installed in accordance with ULC Guide No. 360 019, File CR 1422.
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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