[CCMC 13216-R] CCMC Canadian code compliance evaluation

It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as as glue-laminated timber beams and columns in accordance with the conditions and limitations stated in this evaluation, complies with the following code:

National Building Code of Canada 2010

Ontario Building Code

Ruling No. 07-02-160 (13216-R) authorizing the use of this product in Ontario, subject to the terms and conditions contained in the Ruling, was made by the Minister of Municipal Affairs and Housing on 2007-02-05 pursuant to s.29 of the Building Code Act, 1992 (see Ruling for terms and conditions). This Ruling is subject to periodic revisions and updates.

The above opinion(s) is/are based on the evaluation by the CCMC of technical evidence provided by the evaluation holder, and is bound by the stated conditions and limitations. For the benefit of the user, a summary of the technical information that forms the basis of this evaluation has been included.

Product name

Nordic Lam™

Product description

The product is a glue-laminated timber construction made of black spruce in the tension and compression zones and/or Spruce-Pine-Fir (SPF) species in the core. All laminating boards (lamina) are surfaced to a thickness of 50 mm or less prior to lamination. The lamina is made of short-length pieces, typically 900 mm long with an occasional piece of not less than 685 mm long, and is end-jointed by means of a structural finger joint. Laminations of one or two grades are arranged within the depth of the member according to the desired layup pattern having one or three zones. Tables in the "Technical information" section of this Report outline the minimum layup requirements.

The lamina may also be made with multiple pieces of 38 mm × 38 mm lumber graded in accordance with standard grading rules and facebonded. The face bonding and end joints are bonded with a polyurethane adhesive (for end-joints: Ashland UX-100/WD3-A22, CCMC 13512-L; for edge and face laminations: Ashland WD3-A322/CX-47, CCMC 13591-L).

The Engineered Wood Association (APA) conducts regular audits of the manufacturing plant and the quality assurance program to CSA O177-06, “Qualification Code for Manufacturers of Structural Glued-Laminated Timber.” The engineering properties of the product are listed in the Tables in the "Technical information" section. The specified strengths for limit states design were based on the format conversion used in CSA O86 for conventional glulam. Additional engineering data is available from the manufacturer.

Manufacturing plant

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

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

The CCMC’s compliance opinion is bound by this product being used in accordance with the conditions and limitations set out below.

• The product is intended for use where conventional glulam beams and columns are permitted for structural use by the NBC 2010.
• The product is intended for use in dry service conditions only.^{Footnote (1)}
• The glulam beams covered within the scope of this Report must not exceed 2.0 m³ in volume and 600 mm in depth based on empirical data provided.
• The product has met the adhesive testing requirements for Annexes A.2, “Small-scale flame test,” and A.4, “Elevated temperature performance,” of CSA O177. The intent of Annexes A.2 and A.4 is to provide information for decision-making by the designer or the authority having jurisdiction (AHJ) to determine whether the formulas in Appendix D-2.11, Glued-Laminated Timber Beams and Columns, of Division B of the NBC 2010, apply to these proprietary glulam columns/beams with an adhesive qualified under CSA O112.9 rather than a PRF complying to CSA O112.7, on which the formulas are based.
  • Annex A.3 provides for full-scale fire tests confirming compliance to Appendix D-2.11 of the NBC 2010, which have not been conducted.
• The pre-engineering details outlined below have been provided to CCMC by the manufacturer to demonstrate compliance to Part 9, Housing and Small Buildings, of the NBC 2010 for acceptance by the local AHJ:

1. Nordic Structures Pre-engineered Tables^{Footnote (2)}

   When the product is used as beams, headers columns or wall studs, the installation must be in accordance with the spans and details found in the following documents, in limit states design for Canada:

   • Nordic Lam™, “Beams and Headers,” dated June 2013,
   • Nordic Lam™, “Beams and Headers, commercial depths,” dated June 2013,
   • Nordic Lam™, “Columns,” dated June 2013,
   • Nordic Lam™, “1 ¾-inch Wall Studs,” dated April 2014,
   • Nordic Lam™, “1 ½-inch Wall Studs,” dated April 2014,
   • Nordic Lam™, “Residential Design/Construction Guide,” dated April 2014, and
   • Nordic Lam™, “Construction Details for Residential Applications,” dated December 2013.
2. Nordic structures installation details

   The manufacturer's pre-engineered details within the documents outlined in Section (i) above are limited in scope to building designs where the anticipated loads on the structural details are not exceeded:

   • floor loads,
   • roof loads,
   • garage door headers,
   • bearing length requirements,
   • connections for multiple-piece members,
   • columns,
   • floor framing details,
   • garage door header framing details,
   • holes in beams and headers, and
   • tapered cut.
3. Engineering Required

   For structural applications beyond the scope/limitations of the above-referenced publications, or when required by the AHJ, the drawings or related documents must bear the authourized seal of a professional engineer skilled in wood design and licensed to practice under the appropriate provincial or territorial legislation.

   Installations beyond the scope/limitations of Sections (i) and (ii) imply, but are not limited to, the following:

   • higher loads/longer spans than the manufacturer’s pre-engineered details,
   • concentrated loads,
   • areas of high wind or high seismicity,
   • nonbearing-type fastener designs,
   • design of supporting foundation footings when the total load exceeds the NBC 2010 pre-engineered floor/roof joist spans and beam spans, and
   • fire-resistance ratings.
4. Engineering Support Provided by Manufacturer

   The manufacturer provides engineering support and offers the following customer support contact numbers: 514-871-8526 or toll-free 866-817-3418.

   • Damaged or defective products must not be used unless repaired in accordance with written instructions from the manufacturer.
   • This product must be identified with the phrase “CCMC 13216-R” along the side or top of the glulam member. This CCMC number is only valid when it appears in conjunction with the APA-EWS certification mark.

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

Grade designations are as follows:

• E-rated 2250f has a minimum long-span, E, of 11 790 MPa (1.71 x 10⁶ psi) and a mean long-span, E, or 13 100 MPa (1.90 x 10⁶ psi).
• E-rated 1650f has a minimum long-span, E, of 9 650 MPa (1.40 x 10⁶ psi) and a mean long-span, E, or 10 300 MPa (1.50 x 10⁶ psi).

Additional test information

The product with built-up lamina that is made of short-length end-jointed and edge-bonded lumber laminations (i.e. less than 1830 mm long) is not covered in commodity-type glulam by CAN/CSA-O122-06, “Structural Glued-Laminated Timber.” In this case, the proprietary lami- nations are manufactured differently than described in CAN/CSA-O122, but are produced to match the same 20f and 24f conventional glulam stress grades to allow for direct substitution of the conventional laminations.

The equivalency being sought is with respect to producing conventional 20f and 24f stress grades. This was accomplished by establishing bending strength and stiffness that are equivalent to or better than conventional glulam lamination grades. The quality of manufacturing of new built-up short-length lamina in proprietary layup designs will be equivalent to glulam manufactured in accordance with CAN/CSA- O122. In addition, beams covered within the scope of this Report are limited to a maximum of 2.0 m³ in volume and 600 mm depth of beams.