[CCMC evaluation requirements] CAN/ULC-S704-03, Type 1, Class 3
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
| Number | CAN/ULC-S704-03, Type 1, Class 3 |
| Title | Standard for Thermal Insulation, Polyurethane and Polyisocyanurate, Boards, Faced |
| Document | Standard |
| Publisher | ULC Standards |
Scope
These evaluations apply to closed-cell polyurethane and polyisocyanurate foam thermal insulation in the form of flat, rigid boards covered on both sides with facing material. The rigid boards are intended for use as thermal insulation in building construction. The continuous use temperature is within the –60°C to +93°C range.
These rigid boards are not intended to be used as structural panels.
The standards referenced below provide a basis for evaluating products made with various facing materials (such as paper, fabric, plastic film or metal foil), which has an impact on some physical characteristics. These standards cover only products in which the facing material has been bonded to the foam core in the original foam manufacturing process.
These standards do not apply to products made using fibreboard, perlite board, gypsum board, oriented strandboard (OSB), or any other rigid board, on one or both sides.
Products manufactured to these standards are classified as Type 1, Class 3, on the basis of water vapour permeability (WVP). Typically, Type 1 products are used in wall applications.
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):
| Property | Unit | Physical Property Requirements | |
|---|---|---|---|
| Compressive strength | kPa | ≥ 110 | |
| Tensile strength, perpendicular to the plane of the facer | kPa | ≥ 24 | |
| Flexural strength | kPa | ≥ 170 | |
| Thermal resistance | after conditioning, min. for 25-mm -thick product | m2·°C/W | 0.97 |
| long-term thermal resistance (LTTR), min. for 50-mm thick product Footnote (1) | m2·°C/W | 1.90 (CAN/ULC-S704-03) | |
| Water vapour permeance for 25.4-mm -thick product | ng/(Pa∙s∙m2) | > 60 | |
|
Dimensional stability (Width) |
at –29°C , ambient (RH) | % linear change | ≤ ± 2.0 |
| at 80°C, ambient (RH) | ≤ ± 2.0 | ||
| at 70°C , 97% (RH) | ≤ ± 2.0 | ||
|
Dimensional stability (Length) |
at –29°C , ambient (RH) | % linear change | ≤ ± 2.0 |
| at 80°C , ambient (RH) | ≤ ± 2.0 | ||
| at 70°C , 97% (RH) | ≤ ± 2.0 | ||
| Water absorption | % by volume | ≤ 3.5 | |
|
Dimensional tolerances |
width | mm | +4, –2 |
| length | +6, –4 | ||
| thickness, ≤ 55 mm thick | +4, –1.5 | ||
| thickness, > 55 mm thick | +5, –2.5 | ||
| flatness | mm/m | < 4 | |
| squareness, ≤ 1 200 mm in length | < 5 | ||
| squareness, > 1 200 mm in length | < 9 | ||
© 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:
- do not contravene the National Building Code of Canada, or any provincial or territorial building codes; and
- meet the requirements of CCMC minimum documentation requirements.
Manufacturing requirements
The CCMC requires that evaluation holders, at a minimum, demonstrate that the associated production process:
- is operated under a documented quality system; and
- meets the minimum requirements of the CCMC minimum documentation requirements.
Labelling requirements
The CCMC requires that evaluation holders ensure that product labels:
- reference the associated CCMC number or mark; and
- meet the requirements of CCMC minimum documentation requirements.
Additionally, as per CAN/ULC-S704-03, the product must be marked with the following information:
- type and class;
- ULC standard number;
- manufacturer’s name or trademark, address and telephone number;
- lot number;
- a brief generic description of the facing material used;
- the thermal resistance; and
- the warning, “Caution: This product is combustible and shall only be used as specified by the local building code with respect to flame-spread classification and to the use of a suitable thermal barrier.”
The packaging must also be marked with the phrase “CCMC XXXXX-L,” which must be both visible and legible.
Published CCMC evaluations
The following products have been evaluated to these requirements by the CCMC:
| CCMC number: | Manufacturer: | Product names: |
|---|---|---|
| 13274-L | Firestone Building Products Canada | ISOGARDTM CG, ISOGARDTM GL, RESISTATM, ISO 95+ GL |
Code references
National Building Code of Canada 2010
| Code references | Code provision |
|---|---|
| 9.25.2.2.(1) | Except as required in , thermal insulati ... |
| A-Table 5.10.1.1. | Selection and Installation of Sealants |
| Table 9.23.17.2.A | Wall Sheathing Thickness and Specifications |
