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[CCMC 08774-L] CCMC Standard compliance evaluation

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Product information

Product name

Therm-O-Light (Type 1)

Product description

The product is a cellulose-fibre thermal building insulation made from paper or paperboard stock and modified with chemical additives.

Manufacturing plant

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

Product nameManufacturing plant
St. Thomas, ON, CA
Therm-O-Light (Type 1)Product evaluated by the CCMC

Product evaluated by the CCMC Indicates that the product from this manufacturing facility has been evaluated by the CCMC

  Technical information

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

Evaluation requirements
Criteria number Criteria name
CAN/ULC-S703-09, Type 1Standard for Cellulose Fibre Insulation for Buildings

This product shall be installed as outlined in the Annex and according to the following application charts.

Open spaces coverage chart
RSI value (m2·K/W) Minimum applied thickness (mm) Minimum design (settled) thickness (mm) Mass per unit area (kg/m2) Coverage per 13.6-kg bag (m2) Coverage per 15.0-kg bag (m2)
2.1 92 82 2.0 6.7 7.4
3.5 153 136 3.4 4.0 4.4
5.6 244 218 5.4 2.5 2.8
7.0 305 272 6.8 2.0 2.2
8.8 381 341 8.5 1.6 1.8
10.6 458 409 10.2 1.3 1.5

Closed cavities coverage chart
RSI value (m2·K/W) Framing (mm) Mass per unit area (kg/m2) Coverage per 13.6-kg bag (m2) Coverage per 15.0-kg bag (m2)
2.3 38 × 89 4.3 3.2 3.5
3.6 38 × 140 6.7 2.0 2.2

For open spaces, the chart is based on a thermal resistance value of 25.9 m2·K/W and a design density of 25.8 kg/m2. For closed cavities, it is based on a thermal resistance value of 26.6 m2·K/W and a design density of 48.0 kg/m2.

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It is the responsibility of the user to confirm that the assessment they are using is current and has not been withdrawn or superseded by a later version on the CCMC Registry of Product Assessments.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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