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[CCMC 13510-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

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 product, when used as exterior insulating sheathing with an integral sheathing membrane (weather side) in accordance with the conditions and limitations stated in this evaluation, complies with the following code:

National Building Code of Canada 2015

Code provision Solution type Insulation MaterialsAcceptable Sheathing Membrane Material StandardAlternative Required Sheathing Membrane and InstallationAcceptable

Ontario Building Code

Ruling No. 15-03-324 (13510-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 2015-01-05 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 information

Product name

Legerclad (Composite EPS Board and Sheathing Membrane)

Product description

The product is a Type 2, preformed moulded, expanded polystyrene rigid insulation panel (CCMC 12836-L). The panels are plant-laminated to a spun-bonded olefin sheathing membrane (Typar® CCMC 12892-R made by Fiberweb, LLC) with THERMOBOND JPS70300, a hot melt adhesive, applied in 0.51 mm thicknesses every 7.6 mm. The panels are commonly 1 219 mm × 2 438 mm or 1 219 mm × 2 743 mm and are available in 25 mm to 76 mm thicknesses. A sample of the product is shown in the figure below.

Illustration of Legerclad panels stacked on top of one another.
Figure 1. "Legerclad (Composite EPS Board and Sheathing Membrane)" panel

Manufacturing plants

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

  • Pointe-Claire, Québec, Canada

  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 product must be installed:
    • with the printed side facing outward and must be protected from exposure to ultraviolet (UV) radiation from the sun within 60 days,
    • in accordance with Article, Insulating Sheathing in lieu of Sheathing Membrane, of Division B of the NBC 2015, and the manufacturer’s current instructions; and
    • with a minimum 10 mm air space between the sheathing membrane and the cladding, unless the cladding has been deemed to not require an air space (e.g., deemed by the CCMC or by building officials based on past cladding performance).
  • Thicknesses greater than 50 mm and having a water vapour permeance less than 60 ng/(Pa·s·m2) must comply with Article, Position of Low Permeance Materials, of Division B of the NBC 2015.
  • Sheathing tape (CCMC-evaluated) must be used to seal all joints.
  • A concealed air space that is more than 25 mm wide must contain proper fire blocking, in accordance with Subsection 9.10.16., Fire Blocks, of Division B of the NBC 2015.
  • When sheathing is required, the product must have a minimum thickness of 38 mm as per Table of Division B of the NBC 2015.
  • Use of this product as part of an air barrier system is covered under a separate the CCMC Evaluation Report (see CCMC 13519-R).
  • The product must be clearly identified with “CCMC 13510-R” and the name of the manufacture or logo.

  Technical information

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

Evaluation requirements
Criteria number Criteria name
CCMC-TG-072510.06-15ACCMC Technical Guide for Faced Insulating Sheathing Panel

The Report Holder has submitted technical documentation for the CCMC evaluation. Testing was conducted at laboratories recognized by the CCMC. The corresponding technical evidence for this product is summarized below.

Sheathing membrane (Typar®) with the adhesive

The table below assesses the effect of the adhesive on the sheathing membrane’s performance.

Results of testing the performance requirements of the product
Property Unit Requirement Result
Tensile strength N/mm ≥ 3.5 4.27
Breaking force N ≥ 180 MDTable footnote (1) ≥ 160 XD 441.7 MD 354.0 XD
Water vapour permeance ng/(Pa·s·m2) ≥ 170 406
Water ponding (original) No leakage Pass
Tensile strength after UV exposure % retention of original ≥ 90 93.9%
Tensile strength after UV exposure and heat aging % retention of original ≥ 85 120%
Water vapour permeance after UV exposure and heat aging ng/(Pa·s·m2) ≥ 170 315
Water ponding after UV exposure and heat aging No leakage Pass

Legerclad composite panel – face down

Result of testing the water vapour permeance of the product
Property Unit Requirement Result
Water vapour permeance with NBC-required directionality ng/(Pa·s·m2) ≥ 60 77.0Table footnote (1)

Administrative information


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
Telephone: 613-993-6189
Fax: 613-952-0268

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


© 2021 Her Majesty the Queen in Right of Canada, as represented by the National Research Council of Canada.

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.