[CCMC 14450-R] CCMC Canadian code compliance evaluation

CCMC number:

14450-R

Status:

Active

Issue date:

2021-07-06

Modified date:

2023-11-08

Evaluation holder:

NextStone

12330 E 46th Ave. #400
Denver CO 80239
United States
Website: www.nextstone.com/technical-data
Telephone: 303-371-8232
Email: info@nextstone.com

Product name:

NextStone™

Compliance:

NBC 2015

Criteria:

CCMC-TG-074640-15, "CCMC Technical Guide for High Density Polyurethane Cladding"

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 a high-density, polyurethane plastic cladding system in new and retrofit constructions falling under Part 9, Housing and Small Buildings, 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
09-27-01-01-00-0-00	9.27.1.1.(6) Where cladding materials other than thos ...	Acceptable
09-27-02-00-00-0-00	9.27.2. Required Protection from Precipitation	Acceptable
09-27-02-02-00-0-00	9.27.2.2.(1) Except as provided in Sentence 9.27.2.2. ...	Alternative
09-27-03-00-00-0-00	9.27.3. Second Plane of Protection	Acceptable
09-27-12-00-00-0-00	9.27.12. Vinyl Siding	Alternative

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

NextStone™

Product description

The product is an exterior cladding system consisting of high-density polyurethane plastic panels that are either injection- or compression-moulded. The panels are profiled along the top- and right-side edges such that the horizontal and vertical joints are shiplapped. The exterior face of the panels are embossed to provide a masonry-like (natural stone or brick) pattern. The panels are available in different colours simulating natural stone.

installation of the cladding panel using mechanical fastener — Figure 1. NextStone^TMplastic cladding panel system

Manufacturing plant

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

Product name	Manufacturing plant
Product name	Dongguan City, China
NextStone™	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 cladding system is intended to be used over concrete, masonry, and plywood or oriented strandboard (OSB) sheathing installed over wood framing.
The cladding must not be used as an exterior wall covering in buildings that are required to be of noncombustible construction, or in buildings in which the exterior cladding is required to be noncombustible, in accordance with the NBC 2015.
Fasteners for the cladding must be corrosion-resistant, compatible with the cladding material, and positioned to permit expansion and contraction due to temperature changes. Use 62 mm (2 1/2 in.) No. 8 corrosion-resistant screws spaced at 406 mm (16 in.) on centre (o.c.).
The 19-mm air space that is created by furring incorporated behind the “Nextstone^TM” cladding must remain unobstructed to form a clear drainage layer behind the cladding, and meet the NBC provision for low-permeance material as per Sentence 9.25.5.2.(2), Position of Low Permeance Materials, of Division B of the NBC 2015.
The cladding must be installed in accordance with the manufacturer’s written installation guide (see NextStone™ Installation Guides).
The cladding must be installed with a suitable flashing that will drain water to the exterior and protect the exposed top edge of the cladding. Installed flashing must be in accordance with the requirements of Subsection 9.27.3.7, Flashing Materials of Division B of the NBC 2015.
At least one layer of sheathing membrane conforming to Article 9.23.17.1., Required Sheathing, of Division B of the NBC 2015, must be applied beneath the cladding.
A clearance of not less than 200 mm shall be provided between finished ground and cladding.
A clearance of not less than 50 mm shall be provided between a roof surface and cladding.
Conditions and limitations of this evaluation report shall supersede in case there are discrepancies between this evaluation report and the manufacturer’s written installation guide or manual.
This Evaluation Report is applicable only to products identified on the packaging with the phrase “CCMC 14450-R.”

Technical information

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

Evaluation requirements
Criteria number	Criteria name
CCMC-TG-074640-15	CCMC Technical Guide for High Density Polyurethane Cladding

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

Prescriptive requirements

Cladding material characteristics

Table 1. Test results for cladding material characteristics
Property	Unit	Requirement	Results
Density^{Table footnote (1)}	kg/m³	> 100	161
Tensile modulus	MPa	Report value	91
Compressive strength at 10% deformation	MPa	≥ 1.0	1.9
Tensile strength at yield	MPa	Report value	2.5
Tensile strength at yield after ultraviolet (UV) resistance test	%	80% of original value	115
Coefficient of linear expansion	cm/cm/°C	< 0.000081	0.000059
Flexural modulus	MPa	Report vaue	88
Flexural strength	MPa	≥ 1	2.5
Loss of flexural strength	%	< 25	9.3
Abrasion resistance	-	No cracking, checking, or loss of finish at 100L of sand	Pass
Water absorption	%	< 1% or 0.6 mg/cm² (whichever is smaller)	0.4
Hardness of panel	-	Report value	325
Hardness after acid rain resistance test	%	80% of original value	103
Loss of panel hardness	%	> 80	93

Dimensional tolerance

Test results for dimensional tolerance
Property	Unit	Requirement	Result
Length and width	mm	±3	Pass
Thickness	mm	±1.6	Pass
Squareness	mm	±4.0	Pass
Warpage	mm	1:400	Pass
Slew	mm/m	≤ 1.3 of length	Pass
Edge straightness	mm/m	≤ 1.3 of length and width	Pass

Performance requirements

Cladding performance

Table 2. Test results for cladding performance
Property	Unit	Requirement	Result
Impact resistance	-	The cladding system shall be capable of withstanding the applied impact loads without deterioration in the performance or safety of the system.	Pass
Acid rain resistance	-	The surface shall not have any defects and/or occurrences of new voids.	Pass
Fastener pull through	N	≥400	443^{Table footnote (1)}
Wind load resistance	-	The cladding system shall be capable of resisting and transmitting to its points of support the positive and negative forces that are generated by the design wind loads, without any fracture or permanent deformation of the surfaces resulting from such design wind loads.	Pass at Q₅₀ ≤ 0.85 kPa (non-post-disaster buildings)^{Table footnote (2)}^{Table footnote (3)}^{Table footnote (4)}
Durability	-	The durability of the cladding is assessed by observing changes in appearance (e.g., cracking, crazing) and by measuring the loss of flexural strength.	Pass
Accelerated weathering resistance	-	No visual surface or physical change, such as cracking, flaking or other deleterious effects after 2 000 hours of UV exposure.	Pass

Notes:

Footnote 1

Tested using No.8-2-1/2 in. deck screws.

Return to table footnote 1 referrer

Footnote 2

The wind load resistance and durability tests were performed on a back-up wall consisting of 51 mm × 152 mm wood studs and 10.5 mm OSB sheathing. The spacing between each stud section was 406 mm o.c. unless otherwise required to accommodate the sheathing joint locations. Along the studs, wood furring strips of dimension 19 mm × 38 mm were installed and fastened using 63-mm-long nails at 200 mm o.c. spacing. Each siding panel was installed by using No.8 50.8 mm flat hat deck screws at 406 mm o.c. and on furring strips.

Return to table footnote 2 referrer

Footnote 3

Q50 represents the 1-in-50 probability of the designated wind speed being exceeded in any given year. Geographical areas and their corresponding reference wind velocity pressures are indexed in the NBC 2015. The value did not take into account the site-specific topographic factor Ct, where Ct = 1.0, except for buildings that are constructed on hills or escarpments with a slope defined in Article 4.1.7.4., Topographic Factor, of the NBC 2015. For buildings constructed on hills and escarpments, anticipated wind pressures may be greater.

Return to table footnote 3 referrer

Footnote 4

The performance level shown in the table is for installations limited to non-post-disaster buildings.

Return to table footnote 4 referrer

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.

The CCMC assesses compliance with Canadian building, energy and safety codes, and is trusted by over 6,000 regulators across Canada.

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From: National Research Council Canada

Date modified:: 2024-02-29

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[CCMC 14450-R] CCMC Canadian code compliance evaluation