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[CCMC 14130-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 a residing underlayment to cover existing siding in accordance with the conditions and limitations stated in this evaluation, complies with the following codes:

National Building Code of Canada 2015

ID Code provision Solution type
09-25-02-02-00-0- Insulation MaterialsAlternative

National Building Code of Canada 2020

ID Code provision Solution type
92502020000009.25.2.2. Insulation MaterialsAlternative

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

Kaycan Styrofold 5 Plus

Product description

The product is a faced, moulded expanded polystyrene (EPS) board.

The product is available in 9.5 mm thickness. As a fanfold, it is 1.2 m high and 7.3 m long, with folds every 600 mm. The underlayment has a plastic facer on one side and a foil facer on the other side.

an image of the product

Figure 1. Kaycan Styrofold 5 Plus (image not to scale)

Manufacturing plant

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

Product nameManufacturing plant
Fogelsville, PA, US
Kaycan Styrofold 5 PlusProduct 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 new cladding must be securely fastened as per the NBC 2015 requirements either
  1. directly through the existing structure; or
  2. attached to existing siding, if adequate rigidity and supports are provided and meeting the intent of Article, Attachment, of Division B of the NBC 2015.
  • The product may only be installed over existing cladding that has a minimum of 10 mm of air space behind it, which is vented to the exterior and drained. The vented and drained air space must be maintained after the new cladding is installed.
  • The product may be installed with or without a sheathing membrane. If no sheathing membrane is installed, and if the existing cladding is susceptible to moisture damage, then the joints of the product must be taped.
  • As stated in Note A-, Loose-Fill Insulation in Existing Wood-Frame Walls, of Division B of the NBC 2015, necessary steps must be taken prior to retrofit of the existing wall in order to lower the risk of moisture accumulation. Assessment of the existing wall configuration must be performed by an expert in building science prior to retrofitting.
  • The product shall be installed with suitable flashing as per Article, Flashing Materials, and Article, Flashing Installation, of Division B of the NBC 2015 to drain any incidental water from the existing drainage cavity to the exterior and to protect the exposed top edge of the cladding.
  • The product or its packaging must be clearly identified with the phrase “CCMC 14130-R.”

Explanatory information

The possibility of moisture accumulation within the wall construction is mainly a function of the physical properties of the insulation being installed and its impact on the thermal, air leakage and vapour diffusion characteristics of the existing wall. Consequently, the potential moisture accumulation resulting from the addition of insulation is very specific to the existing wall construction being retrofitted. This also applies to retrofit construction where insulating sheathing is installed over existing exterior walls.

Adding insulation as sheathing is beneficial only in cases where this insulative sheathing adds thermal resistance without increasing the risk of moisture accumulation. If installed properly, with knowledge of the existing wall configuration and performance, the product can provide additional thermal resistance to the wall assembly without any detrimental effects.

  Technical information

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

Evaluation requirements
Criteria number Criteria name
CCMC-TG-072113.10-15ACCMC Technical Guide for Re-Siding Underlayment (Insulative)
CCMC-TG-072113.10-20ACCMC Technical Guide for Re-Siding Underlayment (Insulative)

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. Results of testing the performance requirements of the product
Property Unit Requirement Result
Dimensions (tolerances) As per CCMC technical guide Pass
Initial thermal resistance, min. (at 25 mm thickness) m2·°C/W 0.65 0.66Table footnote (1)
Water vapour permeance, min. ng/(Pa·s·m2) 130 0.99Table footnote (2)
Dimensional stability, max. % linear change 1.5 Pass
Flexural strength, min. kPa 240 292Table footnote (3)
Water absorption, max. % by volume 4 2.9
Compressive strength, min. kPa 35 34.4Table footnote (4)


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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