[CCMC evaluation requirements] CAN/ULC-S701.1:2017, Type 4

From: National Research Council Canada

This document provides a summary of the minimum requirements imposed by the Canadian Construction Materials Centre (CCMC) for all evaluations based on the below criteria document. Additional requirements may be imposed by the CCMC when necessary for a particular evaluation, and are detailed in the individual evaluation.

Criteria document


These evaluations apply to factory-made, rigid expanded polystyrene insulation in the form of boards with or without facings or coatings and made by moulding (EPS) or extrusion (XPS) of expandable foamed polystyrene beads. It is intended for use as a thermal insulation in building construction and other applications within a temperature range of −54°C to +75°C.

Products covered by this standard are also used for sound insulation and in prefabricated thermal insulation systems and composite panels. The performance of systems incorporating these products is not covered by the evaluations.

The following assessment criteria is for Type 4 products


  • The expanded polystyrene (EPS) insulation industry subscribes to an accredited certification program as part of their quality assurance. Some listings for EPS insulation products that are published in the Canadian Construction Materials Centre (CCMC) Registry are based on the participation of one of the certification organizations accredited by the Standards Council of Canada (SCC)
  • Annex B of CAN/ULC-S701.1:2017 includes requirements for flat, uncoated EPS thermal insulation boards that are to be used in exterior insulation and finish systems (EIFS). Annex B forms a mandatory part of the standard.

Material requirements

The evaluation holder must demonstrate that the product meets the following requirements (additional requirements may be imposed by the CCMC when necessary, and are detailed in the individual evaluation):

Table 1. CAN/ULC-S701.1:2017 Type 4 material properties
Property Unit Requirements
Thermal resistance of a 25-mm-thick specimen m 2·°C/W -
Long-term thermal resistance Footnote (1) m 2·°C/W ≥ 1.66
Water vapour permeance for a 25-mm-thick specimen ng/(Pa·s·m 2) ≤ 90
Dimensional stability % linear change ≤ 1.5
Flexural strength kPa ≥ 350
Water absorption % by volume ≤ 0.7
Compressive strength kPa ≥ 210
Limiting oxygen index % ≥ 24

© Underwriters Laboratories of Canada Inc. Reprinted with permission. This material is not the complete and official position of ULC Standards on the referenced subject, which is represented only by the ULC Standard in its entirety.

Installation requirements

The CCMC requires that evaluation holders provide instructions for the installation of the product(s) that:

Manufacturing requirements

The CCMC requires that evaluation holders, at a minimum, demonstrate that the associated production process:

Labelling requirements

The CCMC requires that evaluation holders ensure that product labels:

Additionally, a product that meets the requirements of this standard must be marked with the following information:

  • ULC standard number;
  • type number;
  • RSI X.XX (LTTR for XPS insulation);
  • production identification number;
  • name or trademark of the manufacturer; and

The product must also be marked with the warning:

“Caution: This product is combustible. A protective barrier or thermal barrier is required as specified in the appropriate building code.”

Classification information

Products falling within the scope of this document are commonly classified by:


  • 07 21 00 Thermal Insulation
  • 07 21 13 Board Insulation
  • 07 21 13.13 Foam Board Insulation

Published CCMC evaluations

The following products have been evaluated to these requirements by the CCMC:

CCMC number:Manufacturer:Product names:
04888-LDDP Specialty Electronic Materials US, LLC (company of DuPont)Styrofoam™ Brand SM30, Styrofoam™ Brand Perimate™, Styrofoam™ Brand Highload™ 40, Styrofoam™ Brand Highload™ 60, Styrofoam™ Brand Roofmate™, Styrofoam™ Brand Tech-Crete Blanks, Styrofoam™ Brand Highload™100, Styrofoam™ Brand Panel Core 30, Styrofoam™ Brand Panel Core 40, Styrofoam™ Brand Panel Core 60
12722-LKingspan Insulation LLC GreenGuard®LG-CM, GreenGuard®LG-DC, GreenGuard®LG-SL, GreenGuard®LG-SLX, GreenGuard®LG-SB
13430-LOwens Corning Canada Inc.FOAMULAR® 350, ProGuard™, FOAMULAR® NGX™ C-300, FOAMULAR® 350 NGX™, ProGuard NGX™, FOAMULAR® C-300
14149-LSoprema Inc.SOPRA-XPS 20, SOPRA-XPS 30, SOPRA-XPS 35, SOPRA-XPS 40, SOPRA-XPS 60, SOPRA-XPS 100

Code references

This standard is not referenced in the National Building Code of Canada
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