[CCMC evaluation requirements] CSA-S347-14
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 | CSA-S347-14 |
| Title | Method of Test for Evaluation of Truss Plates Used in Lumber Joints |
| Document | Standard |
| Publisher | CSA Group |
Scope
The design values for the metal truss connector plates are based on test results obtained in accordance with CSA S347-14, “Method of Test for Evaluation of Truss Plates used in Lumber Joints.”
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):
CSA S347 requires testing on the following properties:
- lateral resistance of teeth (Cl. 7.4.2);
- tensile strength of plate (Cl. 7.4.3);
- shear strength of plate (Cl. 7.4.4);
- ultimate tensile strength of plate material (Cl. 7.4.5);
- roller press lateral resistance (Cl. 7.5); and
- moisture response for truss plate joints in structural composite lumber (Cl. 7.6).
Clause 12.8.1.2 of CSA O86-14 does not apply to truss plates in situations where corrosive conditions exist, or in lumber that has been treated with a fire retardant and that is used in wet service conditions or in locations prone to condensation.
Truss plates must be manufactured from galvanized sheet steel and should be of G90 coating class meeting Clause 12.8 of CSA O86-14.
© CSA Group. This information is excerpted from the referenced standard published by CSA Group. The full version of the standard should be referenced, and can be obtained from CSA Group.
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.
Classification information
Products falling within the scope of this document are commonly classified by:
MasterFormat®
- 06 00 00 Wood, Plastics, and Composites
Published CCMC evaluations
The following products have been evaluated to these requirements by the CCMC:
| CCMC number: | Manufacturer: | Product names: |
|---|---|---|
| 08384-L | London Roof Truss Inc. | ES-20 |
| 12888-L | London Roof Truss Inc. | ES-16 |
| 10319-L | MiTek Canada, Inc. | MII 16 |
| 11996-L | MiTek Canada, Inc. | MT20 |
| 13270-L | MiTek Canada, Inc. | MT18HS |
| 12182-L | Alpine Systems Corporation | Alpine HS20 Truss Plate |
| 12802-L | Alpine Systems Corporation | Alpine Wave Plate |
| 13124-L | Alpine Systems Corporation | Alpine HS18 Truss Plate |
| 13326-L | Simpson Strong-Tie Canada, Limited | AS-20 Truss Plate |
| 13418-L | Simpson Strong-Tie Canada, Limited | AS-18-HS Truss Plate |
Code references
National Building Code of Canada 2015
| Code references | Code provision |
|---|---|
| 4.3.1.1. | Design Basis for Wood |
| Table 4.1.8.9. | SFRS Ductility-Related Force Modification Factors, R, Overstrength-Related Force Modification Factors, R, and General Restrictions |