[CCMC 14016-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

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Compliance opinion

It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as a sub-slab thermal insulation 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
09-25-02-02-00-0- Insulation in contact with the ground sh ...Acceptable
09-25-02-02-01-g- 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


Product description

INSTA-PANELS® are insulated panels made from face rigid polyurethane foam. The facings are smooth or embossed and made from metal or fibreglass on both sides of the product. The panels are intended for use as a sub-slab insulation that are 44.5 mm (1¾ in.) thick with a weight of 9.7 kg/m2 (2 lb./ft.2). The panels are available in the following sizes:

  • 508 mm × 1 626 mm (20 in. × 64 in.): smooth, total area – 0.83 m2 (8.9 ft.2)
  • 508 mm × 2 032 mm (20 in. × 80 in.): smooth, total area – 1.03 m2 (11.1 ft.2)
  • 559 mm × 914 mm (22 in. × 36 in.): smooth, total area – 0.51 m2 (5.5 ft.2)
  • 559 mm × 1 626 mm (22 in. × 64 in.): smooth, total area – 0.91 m2 (9.8 ft.2)
  • 559 mm × 2 032 mm (22 in. × 80 in.): smooth, total area – 1.14 m2 (12.2 ft.2)
an drawing of the installation of the product
Figure 1. Installation of INSTA-PANELS®
  1. Poured concrete
  2. Radiant tubing (not always present)
  4. 6 mm poly sheet
  5. Granular base

Manufacturing plants

This evaluation is limited to products produced at the following plants:

Product nameManufacturing plants
Butler, IN, USVaughan, ON, CA
INSTA-PANELS®Product evaluated by the CCMCProduct 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.

  • Insulation around concrete slabs-on-ground must be located so that heat from the building is not restricted from reaching the ground beneath the perimeter, where exterior walls are not supported by footings extending below frost level.
  • The product must be used in conjunction with an air barrier system conforming to Subsection 9.25.3., Air Barrier Systems, of Division B of NBC 2015.
  • Panels are to be affixed on top of a granular base.
  • Panels are cut to fit the unfinished floor prior to pouring concrete slab.
  • A minimum 75 mm (3 in.) concrete cover must be provided over the panels.
  • The product must be installed in accordance with the manufacturer’s installation instructions dated March 23, 2018, revision 1.

  Technical information

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

Evaluation requirements
Criteria number Criteria name
CCMC-TG-072113.31-15CCMC Technical Guide for Sub-Slab Faced Polyurethane Foam Board (metal or glassfiber facers)

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.

Material requirements

The core material and the facings used for the product meet the General Requirements (Section 5) of CAN/ULC‑S704‑11, “Thermal Insulation, Polyurethane and Polyisocyanurate, Boards, Faced.”

Performance requirements

The product meets the CCMC Technical Guide for Sub-Slab Thermal Insulation, MasterFormat 07 21 13.07. 

Table 1. Results of testing the performance requirements of the product
Property Requirement Result
Density Report value 34.5 kg/m3 (fibreglass faced)
Density Report value 29.7 kg/m3 (metal faced)
Thermal resistance (min. per 25 mm) 0.97 m2·°C/W 0.99 (fibreglass faced)
Thermal resistance (min. per 25 mm) 0.97 m2·°C/W 1.14 (metal faced)
Water vapour permeance Report value 3 (ng/(Pa·s·m2))
Air permeability Report value No measurable airflow through specimen
Sorption Report value 0.0264 kg1 moisture content at 93% relative humidity (RH)
Water absorption < 3.5 (% by volume) 0.49 (% by volume)
Water absorption coefficient Report value 0.00045 kg/m2·s1/2
Dimensional stability, linear change at −29°C, ambient RH Length (%) ±2.0 Width (%) ±2.0 Length (%) −0.02 Width (%) −0.01
Dimensional stability, linear change at 80°C, ambient RH Length (%) ±2.0 Width (%) ±2.0 Length (%) −0.06 Width (%) −0.07
Dimensional stability, linear change at 70°C, 97% RH Length (%) ±2.0 Width (%) ±2.0 Length (%) −0.05 Width (%) −0.06
Compressive strength 110 kPa 164.6 (fibreglass faced)
Compressive strength 110 kPa 144.2 (metal faced)


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.


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© 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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