[CCMC 10241-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

CCMC number:

10241-R

Status:

Active

Issue date:

1983-04-05

Modified date:

2022-12-05

Evaluation holder:

Decra Roofing Systems

1230 Railroad Street
Corona CA 92882
United States
Website: www.decra.com
Telephone: 877-463-3272

Product names:

DECRA® Shake
DECRA® Shingle Plus
DECRA® Tile

Code compliance:

NBC 2015

Evaluation requirements:

CCMC-TG-074113-15A "CCMC Technical Guide for Metal Roof Panels"

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 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	9.3.3.2. Galvanized Sheet Steel	Acceptable
09-26-01-02-00-0-00	9.26.1.2.(1) Roofs shall be protected with roofing, i ...	Acceptable
09-26-02-00-00-0-00	9.26.2. Roofing Materials	Alternative
09-26-13-01-00-0-00	9.26.13.1. Thickness	Acceptable

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

DECRA® Shake
DECRA® Shingle Plus
DECRA® Tile

Product description

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)

Example of a “DECRA® Tile” panel — Figure 1. **“DECRA® Tile” panel**

Example of a “DECRA® Shake” panel — Figure 2. **“DECRA® Shake” panel**

Example of a “DECRA® Shingle Plus” panel — Figure 3. **“DECRA® Shingle Plus” panel**

Typical installation details (images)

Example of installation of a “DECRA® Tile” panel — Figure 4. **Typical installation details for “DECRA® Tile”**

Example of installation of a “DECRA® Shake” panel — Figure 5. **Typical installation details for “DECRA® Shake”**

Example of installation of a “DECRA® Shingle Plus” panel — Figure 6. **Typical installation details for “DECRA® Shingle Plus”**

Manufacturing plant

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

Product names	Manufacturing plant
Product names	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.”

Technical information

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

Evaluation requirements
Criteria number	Criteria name
CCMC-TG-074113-15A	CCMC Technical Guide for Metal Roof Panels

Material requirements

Table 1. Physical properties of the products
Property	Requirement	Test method	Result
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 and flaking	CAN/CGSB-93.3	Pass
Coating thickness (µm)	≥ 180	ASTM D1005	248
Coating adhesion	No removal of film	ASTM D3359^{Table 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 G155^{Table footnote (2)}	Pass
Salt spray resistance	≥ 7 rating^{Table footnote (3)}	ASTM B117^{Table footnote (4)}	10
Granular mineral adhesion	≤ 2.0 g	ASTM D4977	0.84

Performance requirements

Traffic load

Table 2. Traffic load test results for DECRA^® Shake
Property	Requirement	Result
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	Pass^{Table footnote (1}

Uniform load

Table 3. Uniform load test results for DECRA^® Shake
Property	Requirement	Result
Uniform load	The maximum load beyond which a deformation occurs that can adversely affect the performance of the roofing system	20 590 Pa

Wind uplift

Table 4. Wind uplift test results for DECRA^® Shake
Pressure (kPa)	Time (s)	Requirement	Result^{Table footnote (1)}
0.5	10	No evidence of deformation, permanent damage or failure	Pass
1.0	10		Pass
1.4	10		Pass
1.9	10		Pass
2.5	10		Pass
2.9	10		Pass
3.4	10		Pass
3.8	10		Pass
4.3	10		Pass
4.8	10		Pass

Dynamic pressure water infiltration

Table 5. Dynamic pressure water infiltration test results for DECRA^® Shake
Wind speed (km/h)	Simulated rainfall (L/m² ·min)	Time (min)	Requirement	Result^{Table footnote (1)}
123	3.4	5	No leakage or damage	Pass
142	3.4	5		Pass
159	3.4	5		Pass
174	3.4	5		Pass

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.

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.

Disclaimer

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.

Language

Une version française de ce document est disponible.
In the case of any discrepancy between the English and French version of this document, the English version shall prevail.

Copyright

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.

Code Compliance via Alternative Solutions

Where a design differs from the acceptable solutions in Division B, then it should be treated as an "alternative solution." A proponent of an alternative solution must demonstrate that the alternative solution addresses the same issues as the applicable acceptable solutions in Division B and their attributed objectives and functional statements. However, because the objectives and functional statements are entirely qualitative, demonstrating compliance with them in isolation is not possible. Therefore, Clause 1.2.1.1.(1)(b) identifies the principle that Division B establishes the quantitative performance targets that alternative solutions must meet. In many cases, these targets are not defined very precisely by the acceptable solutions [...] Nevertheless, Clause 1.2.1.1.(1)(b) makes it clear that an effort must be made to demonstrate that an alternative solution will perform as well as a design that would satisfy the applicable acceptable solutions in Division B—not “well enough” but “as well as.”

National Building Code of Canada, Sentence A-1.2.1.1.(1)(b)

The CCMC has determined that compliance with this provision of the Code has been demonstrated as an Alternative Solution. The evaluation report provides a summary of the basis of CCMC's compliance opinion.

CCMC's code compliance opinions

All CCMC evaluation reports are opinions of code compliance established in accordance with the National Building Code of Canada, Subsection 1.2.1. "Compliance with this Code," which requires compliance to be achieved by:

complying with the applicable acceptable solutions in Division B, or
using an alternative solution that will achieve at least the minimum level of performance required by Division B in the areas defined by the objective and functional statements attributed to the applicable acceptable solutions.

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Date modified:: 2022-12-05