[CCMC 14146-R] CCMC Canadian code compliance evaluation

It is the opinion of the Canadian Construction Materials Centre that the evaluated products, when used as joists in floor and roof applications in accordance with the conditions and limitations stated in this evaluation, comply with the following code:

National Building Code of Canada 2015

Ontario Building Code

Ruling No. 04-01-105 (14146-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 2004-02-13 (revised 2022-12-07) 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 is 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 names

• IB 400
• IB 600
• IB 800
• IB 900x

Product description

The products are prefabricated wood I-joists consisting of two finger-jointed lumber flanges. The flange sizes and grades are shown in the Joist flange sizes and grades table below. This evaluation covers all the I-joist series products described in this evaluation that are manufactured at the Pohénégamook plant.

The flanges are finger-jointed at the plant and glued to a 9.5-mm- or 11-mm-thick oriented strandboard (OSB) web, which is manufactured in conformance with CSA O325-07, “Construction Sheathing.”

The web-flange connection is made by inserting the profiled OSB web into an 18.8-mm-deep tapered groove in the centre of the wide face of the top and bottom flanges. Consecutive web segments are end-spliced with a V-shaped joint to form a continuous web.

For the products manufactured at the Pohénégamook plant, all the V-shaped edge web segments, the web-to-flange, and the flange finger joints are bonded together using a polyurethane adhesive (CCMC 13513-L).

APA – The Engineered Wood Association (APA EWS trademark) conducts regular audits of the manufacturing plant and the quality assurance program as part of the product certification.

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 products are intended for use in structural applications such as floor, ceiling or roof joists, and are intended for dry service use^{Footnote (1)} applications only.
• The following pre-engineering information has been provided to the CCMC by the manufacturer to demonstrate compliance with Part 9, Housing and Small Buildings, of the NBC 2015 for acceptance by the local authority having jurisdiction (AHJ):
  Manufacturer’s pre-engineered design tables

  When the products are used as floor joists in simple (single) span or continuous (multiple) span applications supporting uniform loads only, the installation must be in accordance with the vibration controlled floor span tables (including NBC 2015-specified vibration criteria^{Footnote (2)}) found in the documents below, in Limit States Design for Canada.

  For IB 400, IB 600, IB 800 and IB 900x products:

  1. IB CND Sealed Reinforced Cantilever Table, dated April 5^th 2022;
  2. IB CND Roof Span Tables, dated June 10^th 2022;
  3. IB CND Web Hole Tables Rev 1, dated June 10^th 2022;
  4. IB 400 CND Sealed Floor Span Tables, dated January 5^th 2022;
  5. IB 600 CND Sealed Floor Span Tables, dated January 5^th 2022;
  6. IB 800 CND Sealed Commercial Floor Span Tables, dated June 10^th 2022;
  7. IB 800 CND Sealed Floor Span Tables, dated January 5^th 2022;
  8. IB 900x CND Sealed Commercial Floor Span Tables, dated June 10^th 2022;
  9. IB 900x CND Sealed Residential Floor Span Tables, dated June 10^th 2022; and
  10. IB EWP Inc. MAX-CORE I-Joist Installation Guide – Canada (JIE0622C), dated June 2022.

   

  The product must be installed in accordance with the manufacturer’s installation guidelines noted in the above-mentioned documents for those applications falling within the scope of the documents. Applications outside the scope of these installation guidelines require engineering on a case-by-case basis.

  Manufacturer’s pre-engineered installation details

  The products must be installed in accordance with the applicable manufacturer’s installation documents outlined above. Installation of the products is limited in scope to building designs where the anticipated loads on the following structural details are not exceeded (references from documents 1 through 10 above):

  • cantilever design table (1);
  • roof span tables (2)
  • floor span tables ((4) through (9))
  • rim joist, rimboard and blocking resistance (Floor Framing Details of (10));
  • squash blocks (Floor Framing Details of (10));
  • backer block (Floor Framing Details (10));
  • web stiffener requirements (10);
  • filler block for double I-joists (10);
  • web hole tables ((3) and (10)).
  Engineering required

  When required by the AHJ or for structural applications beyond the scope/limitations of those referenced in the Code compliance opinion section, the drawings or related documents must bear the authorized seal of a professional engineer skilled in wood design and licensed to practise under the appropriate provincial or territorial legislation.

  Installations beyond the scope/limitations of above imply, but are not limited to, the following:

  • higher loads/longer spans than the manufacturer’s pre-engineered details;
  • concentrated loads;
  • offset bearing walls;
  • design of cantilever, when the cantilever conditions exceed the limitations of NBC 2015 pre-engineered tables;
  • roof span, when the design loads exceed the limitations of NBC 2015 pre-engineered roof span tables;
  • high wind and seismic areas;
  • stair openings;
  • design of supporting wall studs/beams when the total load exceeds the NBC 2015 pre-engineered floor/roof joist tables; and
  • design of supporting foundation footings when the total load exceeds the NBC 2015 pre-engineered floor/roof joist tables.

   

  The engineer must design in accordance with CSA O86 and may use as a guide the Engineering Guide for Wood-Frame Construction, published by the Canadian Wood Council.

  Engineering support provided by the manufacturer

  • IB EWP inc. provides engineering and product support through the following contact information:

    For the IB MAX-CORE^® Series I-Joists, IB EWP inc.
    Telephone: 418-893-1515
    Email: sales@ibewp.com

  • These products must be identified with the phrase “CCMC 14146-R” along the side of the flange. This CCMC number is only valid when it appears in conjunction with the APA EWS certification mark.
  • Damaged or defective joists must not be used, unless repaired in accordance with written instructions from the manufacturer.

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

General

The evaluation holder has submitted technical documentation for the CCMC’s evaluation. Testing was conducted at laboratories recognized by the CCMC. The corresponding technical evidence for this product is summarized below. Additional engineering data and load/span tables are available from the manufacturer as outlined in the  Conditions and limitations section.

Fire-protection options

This section is beyond the scope of the CCMC's Code compliance opinion related to the evaluation of structural performance. The performance of the fire-protection options have been reviewed by the CCMC and are presented as additional information for AHJs.

Fire performance data submitted by the evaluation holder

The engineered joist manufacturer (evaluation holder) submitted fire-protection options for its proprietary joist system when used in single-family houses (unsprinklered). The fire-protection options follow the principles in Appendix D of Division B of the NBC. 

Proposed fire-protection options

The manufacturer’s fire-protection options for its proprietary joists are presented below. The CCMC has reviewed this fire-protection option in comparison to the fire performance of an unprotected exposed 38 mm × 235 mm (2 × 10) floor joist system.^{Footnote (1)} The proposed fire-protection option performs “as well as” exposed 38 mm × 235 mm (2 × 10) lumber joists. It should be noted that the NBC 2015 exempts single-family houses constructed using conventional wood-frame construction, in accordance with Part 9, from requiring a fire-resistance rating (see Article 9.10.8.10. of Division B of the NBC 2015). The proposed fire-protection option for proprietary alternative floor joists is not to be considered in sprinklered single-family houses or where fire-resistance-rated assemblies are required.

Fire-protection options

The following 7 options of I-joist floor fire protection alternative solutions are provided by the manufacturer.^{Footnote (2)} These floor assemblies have demonstrated fire performance as good as conventional wood-frame 38 mm × 235 mm (2 × 10) exposed-floor construction.

The details of the following fire protection floor assemblies are outlined in the figures below.

1. Fire Protection of Floors FP-01 − 12.5 mm (1/2 in.) gypsum board attached to bottom of flange;
2. Fire Protection of Floors FP-02 − 12.5 mm (1/2 in.) gypsum board attached directly to web;
3. Fire Protection of Floors FP-03 − 12.5 mm (1/2 in.) gypsum board attached directly to sides of flange;
4. Fire Protection of Floors FP-04 − Mineral wool insulation;^{Footnote (3)}
5. Fire Protection of Floors FP-06 − 12.5 mm (1/2 in.) gypsum board installed on top of the bottom flange;
6. Fire Protection of Floors FP-07 − 15.8 mm (5/8 in.) gypsum board installed on top of the bottom flange; and
7. Fire Protection of Floors FP-09 − Rockwool SAFE’n’Sound^® mineral wool insulation.^{Footnote (3)}

Table 6. Applicable IB MAX-CORE^® Series I-Joists for fire-protection assemblies based on flange size

Product	Flange size (thickness × width) (mm)	Fire-protection assembly
IB 400	38 × 63.5	FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
IB 600	38 × 63.5	FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
IB 800	38 × 89	FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
IB 900x	38 × 89	FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09

Fire protection assemblies

The following floor assembly design (FP-01) is the default alternative solution for all cases and where the manufacturer has not undertaken any specific testing to show equivalency to exposed 38 x 235 mm (2×10) lumber with proprietary joist fire-protection options.

 

The following fire-resistance designs, FP-02 to FP-09, provided by the manufacturer provide fire performance as good as to 38 mm × 235 mm (2 × 10) dimensional lumber exposed floor joists.

Table 7. Table for FP-06^{Table for footnote (1)}

Joist spacing	Required length for gypsum boards
300 mm (12 in.)	282.5 mm (11-1/8 in.) ± 3.2 mm (1/8 in.)
400 mm (16 in.)	384.2 mm (15-1/8 in.) ± 3.2 mm (1/8 in.)
487 mm (19.2 in.)	467 mm (18-3/8 in.) ± 3.2 mm (1/8 in.)

 

Table 8. Gypsum board lengths for FP-07^{Table for footnote (1)}

Joist spacing	Required length for gypsum boards
300 mm (12 in.)	282.5 mm (11-1/8 in.) ± 3.2 mm (1/8 in.)
400 mm (16 in.)	384.2 mm (15-1/8 in.) ± 3.2 mm (1/8 in.)
487 mm (19.2 in.)	467 mm (18-3/8 in.) ± 3.2 mm (1/8 in.)
600 mm (24 in.)	587 mm (23-1/8 in.) ± 3.2 mm (1/8 in.)