[CCMC 09218-L] CCMC Standard compliance evaluation

From: National Research Council Canada

In most jurisdictions this document is sufficient evidence for approval by Canadian authorities.

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Product information

Product names

  • Sopra-Cellulose W
  • Weathershield Cellulose Insulation

Product description

The product is a cellulose-fibre thermal building insulation manufactured from clean paper and treated with chemicals. The paper is at least 95% used, unused (or a combination of both), newsprint feedstock with a permissible maximum of 5% of paper obtained from telephone directories, paper books and glossy paper. The glossy paper content does not exceed 1%.

Manufacturing plant

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

Product namesManufacturing plant
Edmonton, AB, CA
Sopra-Cellulose WProduct evaluated by the CCMC
Weathershield Cellulose InsulationProduct 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

The tested thermal resistance value is 25.4 m2·kW-1 per metre thickness at a design density of 25 kg/m3.

This product must be installed as outlined in the the CCMC evaluation requirements and according to the following coverage chart:


RSI value (m2·K/W) Minimum applied thickness (mm) Minimum settled thickness (mm) Minimum mass per unit area (kg/m2) Maximum net coverage per 11.5‑kg bag (m2)
2.1 93 83 2.07 5.56
3.5 154 138 3.45 3.34
4.9 216 193 4.83 2.38
5.3 234 209 5.22 2.20
5.6 247 221 5.51 2.09
6.0 265 236 5.91 1.95
7.0 309 276 6.89 1.67
7.7 340 303 7.83 1.47
8.8 388 347 9.22 1.25
10.6 468 418 11.44 1.01


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It is the responsibility of the user to confirm that the assessment they are using is current and has not been withdrawn or superseded by a later version on the CCMC Registry of Product Assessments.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