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[CCMC 13672-R] CCMC Canadian code compliance evaluation

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 insulated exterior wall panels in accordance with the conditions and limitations stated in this evaluation, complies with the following code:

National Building Code of Canada 2010

ID Code provision Solution type
04-03-01-01-00-0- Design Basis for WoodAcceptable
09-23-10-00-00-0-009.23.10. Wall StudsAcceptable
09-25-02-02-01-c- Insulation MaterialsAcceptable

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

IPB Wall Panels

Product description

The product is an insulated wall panel system that is installed with two 2 × 6 lumber studs spaced at 1.2 m (4') on centre (o.c.) at panel edges with top and bottom plates. This is an alternate stud spacing to the 38 mm × 140 mm (2 × 6) framing at 600 mm (24") o.c. requirement specified in the NBC 2010. The insulated wall panel is an expanded polystyrene insulation board that is bonded with an adhesive to 11 mm (7/16") oriented strandboard (OSB) sheathings. The panels and studs form a unit stiffened by stressed-skin action allowing for a wider stud spacing to 1.2 m (4') o.c. beyond the Code-specified 600 mm (24") o.c.

Typical details of the system are shown in Figure 1 and Figure 2

The two studs spaced at 1.2 m (4') o.c. are two 38 mm × 140 mm (2 × 6), S-dry S-P-F No.1/2. The panels that have been evaluated are 162 mm (6.4") thick with a maximum height of 3.04 m (10') and a standard width of 1.220 m (4'). The studs, continuous bottom plate and two top plates must be installed in the field as per the manufacturer's drawings for the CCMC-evaluated panel system. The qualified panels were tested with the electrical outlet cut-outs and 25 mm (1") chase within the foam core.

Alternative panel configurations that may be offered by the manufacturer do not form part of this evaluation and must not bear the CCMC evaluation number.

EPS core 

The panel core is a Type 1 EPS that is 140 mm (5.5") thick. The EPS insulation is certified by Intertek Testing Services (ITS) NA Ltd. (see CCMC 12424-L) to confirm compliance to CAN/ULC-S701, “Standard for Thermal Insulation, Polystyrene, Boards and Pipe Covering.”

OSB specification

The OSB is 11.1 mm (0.44") thick, certified to CSA O325-07, “Construction Sheathing,” to a span rating of 1R24/2F16/W24. The OSB panels are certified by APA to CSA O325 and APA Product Report PR-E710, “Qualified OSB with low formaldehyde Emissions”, Tolko Industries, issued December 15, 2008. The OSB is installed with the strong axis oriented vertically on both the interior and exterior surfaces of the panels.

Adhesive – EPS to OSB

The adhesive used to bond the EPS boards to the OSB panels is a moisture-cured urethane laminating adhesive. Specifically, the MOR-AD™ M-647 manufactured by the Dow Chemical Co. (formerly Rohm and Haas Chemicals LLC) (see ICC-ES Report ESR-1023).

Isometric view drawing of the insulated wall panel system consisting of a top plate, OSB, ESP core, double wood stud spline and continuous bottom plate. A top view drawing details the exterior and interior of the wall panel system.
Figure 1. Isometric view and horizontal cross-section
  1. isometric view
    1. top plate and 1 1/8" cap
    2. 7/16 OSB
    3. ESP core
    4. double wood stud spline (site supplied)
    5. continuous bottom plate (material and anchors supplied and installed by others)
    6. top plate (site supplied)
    7. 1 1/8" cap
  2. top view
    1. exterior
    2. sealing details as per manufacturer when displayed as an air barrier system
    3. double wood stud spline
    4. interior
    5. 2" screws or nails at 6" o.c.
    6. IBP wall panel
Section drawing of the wall panel system outlining detail drawing A and B at the top and bottom of the wall panel section. The detail drawings label the sections that compose the insulated wall panel system.
Figure 2. Vertical cross-section
  1. section
    1. truss
    2. 1 1/8" min. cap
  2. detail A
    1. caulk
    2. 1 1/8" min. cap
    3. 2 × 6 top plate (site supplied)
    4. 2" screws or nails at 6" o.c.
    5. expandable foam sealant
    6. IBP wall panel
  3. detail B
    1. IBP wall panel
    2. 2 × 6 bottom plate (site supplied)
    3. expandable foam sealant
    4. 2" screws or nails at 6" o.c.
    5. caulk
    6. sub floor

Manufacturing plant

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

Product nameManufacturing plant
Fort St. John, BC, CA
IPB Wall PanelsProduct 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 wall panel system is intended for dry service applications only.Footnote (1)
  • The wall panel system is limited to buildings that fall within the scope of Part 9 of Division B of the NBC 2010. These panels are intended for buildings where combustible construction is permitted.
  • The wall panel system has not been evaluated to replace braced walls when required by Subsection 9.23.13., Bracing to Resist Lateral Loads Due to Wind and Earthquake, of Division B of the NBC 2010.
  • The maximum number of storeys must be in accordance with Table of Division B of the NBC 2010 for 38 mm × 140 mm (2 × 6) studs at 600 mm (24") o.c. for the respective thickness and alternate stud spacing of the proposed panels with two 38 mm × 140 mm studs at 1.2 m (4') o.c. spacing, specifically:


    Conventional stud frame size at 600 mm (24") o.c spacing IPB wall panels double wood stud spline at 1.2 m (4') o.c. Building height (maximum storey height as per NBC)
    38 mm × 140 mm (2 × 6) Two 38 mm × 140 mm (2 × 6) Two-storey (maximum storey height)Footnote (1)


  • The framing of window and door openings must be as per conventional construction for lintel spans including supports and required bearing area as per the NBC 2010.
  • Point loads must be addressed as per the NBC 2010 with continuous load transfer to the foundation.
  • The panels are to be mechanically-fastened to studs and plates in accordance with the manufacturer’s specific instructions, but not less than the nailing schedule contained in Tables and of Division B of the NBC 2010.
  • The junction between each panel and the junction between the panel and the top and bottom plates must be caulked or sealed as per the manufacturer’s details.
  • Air leakage and vapour diffusion control must be accomplished by installing a 6 mil polyethylene air and vapour barrier conforming to the NBC 2010.
  • The installation of the CCMC-evaluated wall panels must be in accordance with the manufacturer’s installation manual, entitled “IPB Systems Ltd., Storing and Installation Details,” dated August 8, 2014. The manufacturer may have other panels available that are not within the scope of this evaluation and must not bear the CCMC mark or CCMC number.
  • Only the proposed wall panels that have the specified recesses to accept two 38 mm × 140 mm (2 × 6) studs at 1.2 m (4') o.c. must be used and bear the CCMC 13672-R mark.

  Technical information

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

Evaluation requirements
Criteria number Criteria name
CCMC-TG-061216.01-10CCMC Technical Guide for Stressed Skin Panels (with structural ribs) for Walls and Roofs

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

Performance requirements

Table 1. Performance tests – empirical method for alternative solution
Panel test Units IPB wall panels with two 38 mm × 140 mm (2 × 6) studs at 1.2 m (4') o.c. Wood frame with 38 mm × 140 mm (2 × 6) at 600 mm (24") o.c. Performance factorFootnote (1)
Axial test (1.2 m × 3.05 m (4' × 10’) panels) – avg. max load kN 203.6 167.3 1.22
Axial test (1.2 m × 3.05 m (4' × 10’) panels) – avg. load at Δ = 3 mm kN 26.9 26.7 1.01
Transverse test (2.4 m × 3.05 m (8' × 10') assembly) – avg. max load kN 91.1 44.9 2.03
Transverse test (2.4 m × 3.05 m (8' × 10') assembly) – avg. load at L/360 kN 17.0 8.2 2.07
Transverse test (2.4 m × 3.05 m (8' × 10') assembly) – avg. load at L/180 kN 36.0 16.3 2.21
Racking load (2.4 m × 3 m (8' × 10') assembly) – avg. ultimate lateral capacity kN 61.5 25.5 2.41
Racking load (2.4 m × 3 m (8' × 10') assembly) – lateral deflection at 5 kNFootnote (2) mm 3.5 5.7 0.61
Table 2. Material and component qualification
Requirement Evidence
Adhesive qualification – Appendix III ICC- ES AC05, Type 2, Class II MOR-AD 647 manufactured by Dow Chemical (formerly Rohm and Haas). Dow Chemical test data confirmed compliance of the entire MOR-AD 600 series.
Expanded polystyrene Type 1, meet ULC S701-05 See CCMC 12424-L
OSB panels, meet CSA O325-07 Certified by the APA to CSA O325. Span rating of 1R24/2F16/W24

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.


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.


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.


© His Majesty the King in Right of Canada, as represented by the National Research Council of Canada, 2024

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.

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From: National Research Council Canada

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