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[CCMC 14146-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

In most jurisdictions this document is sufficient evidence for approval by Canadian authorities.

Learn more about CCMC recognition Look for the trusted CCMC mark on products to verify compliance.

Compliance opinion

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 codes:

National Building Code of Canada 2015

ID Code provision Solution type
04-03-01-01-00-0-004.3.1.1.(1) Buildings and their structural members m ...Acceptable
09-10-08-10-00-0-009.10.8.10. Application to HousesAlternative
09-23-04-02-00-0-009.23.4.2.(2) Spans for floor joists that are not sele ...Alternative

National Building Code of Canada 2020

ID Code provision Solution type
4.3.1.1.4.3.1.1.(1) Buildings and their structural members m ...Acceptable
9.10.8.10.9.10.8.10. Application to HousesAlternative
9.23.4.2.9.23.4.2.(2) Spans for floor joists that are not sele ...Alternative
9.4.1.9.4.1. Structural Design Requirements and Application LimitationsAcceptable

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(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 information

Product names

  • IB400
  • IB600
  • IB700
  • IB800
  • IB900x

Product description

The products are prefabricated wood I-joists consisting of two finger-jointed lumber flanges. The flange sizes and grades are shown in Table 1 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 O325-16, “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 (see 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.

Table 1.  Joist flange sizes and grades
IB I-joist Depth (mm) Grade Flange size (mm) Web thicknessTable footnote (1) (mm)
IB400 200–406 ProprietaryTable footnote (2) S-P-F No. 2 and better, or enhancedTable footnote (3) MSR 1650f-1.5E 38 × 63.5 9.5
IB600 200–508 EnhancedTable footnote (3) MSR 2100f-1.8E 38 × 63.5 9.5
IB700 241–406 EnhancedTable footnote (3) MSR 1650f-1.5E 38 × 89 9.5
IB800 200–508 EnhancedTable footnote (3) MSR 2100f-1.8E 38 × 89 9.5
IB900x 200–610 EnhancedTable footnote (3) MSR 2400f-2.0E 38 × 89 11.1

Manufacturing plant

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

Product namesManufacturing plant
Pohénégamook, QC, CA
IB400Product evaluated by the CCMC
IB600Product evaluated by the CCMC
IB700Product evaluated by the CCMC
IB800Product evaluated by the CCMC
IB900xProduct evaluated by the CCMC

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

  Conditions and limitations

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 useFootnote (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 and the NBC 2020 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 floor span tables (including vibration criteriaFootnote (2)) found in the documents below.

    For IB400, IB600, IB700, IB800 and IB900x products:

    1. IB CND Sealed Reinforced Cantilever Table, dated April 5th 2022;
    2. IB CND Roof Span Tables, dated April 5th 2022;
    3. IB CND Web Hole Tables, dated April 5th 2022;
    4. IB400 CND Sealed Floor Span Tables, dated January 5th 2022;
    5. IB600 CND Sealed Floor Span Tables, dated January 5th 2022;
    6. IB700 CND Sealed Floor Span Tables, dated January 5th 2022;
    7. IB800 CND Sealed Commercial Floor Span Tables, dated June 10th 2022;
    8. IB800 CND Sealed Floor Span Tables, dated January 5th 2022;
    9. IB900x CND Sealed Commercial Floor Span Tables, dated June 10th 2022;
    10. IB900x CND Sealed Residential Floor Span Tables, dated June 10th 2022; and
    11. IB EWP Inc. MAX-CORE I-Joist Installation Guide – Canada – ENGLISH (JIE0823C), dated August 2023.

     

    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 are to documents 1 through 11 above):

    • cantilever design table (1);
    • roof span tables (2);
    • floor span tables (4 through 10);
    • rim joist, rimboard and blocking resistance (floor framing details of 11);
    • squash blocks (floor framing details of 11);
    • backer block (floor framing details of 11);
    • web stiffener requirements (11);
    • filler block for double I-joists (11); and
    • web hole tables (3 and 11).
    Engineering required

    When required by the AHJ or for applications beyond the scope/limitations of those referenced in the Code compliance opinion section, the drawings or related documents must bear the seal of a professional engineer.

    Installations beyond the scope/limitations of the 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 cantilevers, when the cantilever conditions exceed the limitations of the NBC 2020 pre-engineered tables;
    • roof span, when the design loads exceed the limitations of the NBC 2020 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 2020 pre-engineered floor/roof joist tables; and
    • design of supporting foundation footings when the total load exceeds the NBC 2020 pre-engineered floor/roof joist tables.
    Engineering support provided by the manufacturer
    • IB EWP Inc. provides engineering and product support and can be contacted through the following:
      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.

  Technical information

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

Evaluation requirements
Criteria number Criteria name
CCMC-TG-061733.01-15BCCMC Technical Guide for Prefabricated Wood I-Joists
CCMC-TG-061733.01-20CCMC Technical Guide for Prefabricated Wood I-Joists

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.

Design requirements

Table 2.  Engineering propertiesTable footnote (1) (limit states designTable footnote (2))
Series Joist depth (mm) Factored moment resistanceTable footnote (3) Mr (N·m) Factored shear resistanceTable footnote (4) Vr (N) EI (×106) (kN·mm2) Shear deflection factor "K" (×106) (N) Factored vertical load resistanceTable footnote (5) (kN/m)
With stiffeners
IB400 200 5 040 8 109 353 18.24 42.3
219 5 626 8 109 439 19.97 42.3
235 6 122 8 109 531 21.40 42.3
241 6 314 8 320 568 21.97 42.3
286 7 689 9 864 849 26.02 42.3
302 8 185 10 391 964 27.49 42.3
356 9 854 12 286 1 418 32.38 42.3
406 11 421 14 042 1 931 37.01 42.3
IB600 200 6 945 8 109 416 18.24 42.3
219 7 757 8 109 519 19.97 42.3
235 8 433 9 478 631 21.40 42.3
241 8 704 9 619 674 21.97 42.3
286 10 598 10 637 1 022 26.02 42.3
302 11 274 11 023 1 145 27.49 42.3
356 13 574 12 286 1 679 32.38 42.3
406 15 739 14 042 2 293 37.01 42.3
457 17 802 15 797 3 002 41.63 37.0
508 19 696 17 552 3 742 46.26 31.7
IB700 241 8 941 9 829 775 21.97 42.3
302 11 590 11 374 1 311 27.49 42.3
356 13 958 12 743 1 917 32.38 42.3
406 16 179 14 042 2 600 37.01 42.3
IB800 200 9 831 8 109 585 18.24 42.3
219 10 981 8 109 729 19.97 42.3
235 11 940 9 759 881 21.40 42.3
241 12 323 9 864 936 21.97 42.3
286 15 006 10 812 1 415 26.02 42.3
302 15 965 11 163 1 584 27.49 42.3
356 19 234 12 883 2 316 32.38 42.3
406 22 301 14 533 3 139 37.01 42.3
457 25 108 16 148 4 147 41.63 38.3
508 27 915 18 254 5 163 46.26 34.4
IB900x 200 12 097 9 548 620 22.42 42.3
219 13 507 10 285 775 24.55 42.3
241 15 164 11 163 976 27.04 42.3
302 19 651 13 515 1 644 33.80 42.3
356 23 654 14 919 2 399 39.85 42.3
406 27 431 16 358 3 246 45.55 42.3
457 31 016 17 622 4 227 51.24 38.3
508 34 331 18 921 5 349 56.93 34.4
559 37 611 20 185 6 612 62.63 26.5
610 40 847 21 484 8 018 68.32 26.5

 

Table 3. Additional engineering properties (limit states design)Table footnote footnote (1)
Series Depth (mm) Factored end reactionsTable footnote footnote (2) (N)
38-mm bearing 44-mm bearing 70-mm bearing 89-mm bearing 102-mm bearing
No stiffeners With stiffenersTable footnote footnote (3) No stiffeners With stiffenersTable footnote footnote (3) No stiffeners With stiffenersTable footnote footnote (3) No stiffeners With stiffenersTable footnote footnote (3) No stiffeners With stiffenersTable footnote footnote (3)
IB400 200 6 705 7 407 6 845 7 477 7 407 7 758 7 828 7 969 8 109 8 109
219 7 477 7 793 7 547 7 828 7 793 7 934 7 969 8 039 8 109 8 109
235 7 793 8 109 7 828 8 109 8 109 8 109 8 109 8 109 8 109 8 109
241 7 863 8 320 7 934 8 320 8 320 8 320 8 320 8 320 8 320 8 320
286 8 249 9 513 8 460 9 548 9 408 9 864 9 864 9 864 9 864 9 864
302 8 425 9 970 8 636 10 040 9 619 10 391 10 285 10 391 10 391 10 391
356 8 846 11 444 9 092 11 549 10 215 12 286 10 882 12 286 10 882 12 286
406 9 303 12 813 9 513 12 953 10 215 14 042 10 882 14 042 10 882 14 042
IB600 200 6 705 7 407 6 845 7 477 7 407 7 758 7 828 7 969 8 109 8 109
219 7 477 7 793 7 547 7 828 7 793 7 934 7 969 8 039 8 109 8 109
235 7 793 8 109 7 934 9 478 8 109 9 478 8 109 9 478 8 109 9 478
241 7 863 8 320 8 004 9 619 8 320 9 619 8 320 9 619 8 320 9 619
286 8 249 9 513 8 530 10 637 9 408 10 637 9 864 10 637 9 864 10 637
302 8 425 9 970 8 706 11 023 9 619 11 023 10 285 11 023 10 391 11 023
356 8 846 11 444 9 373 12 286 10 250 12 286 10 882 12 286 10 882 12 286
406 9 303 12 813 9 970 13 515 10 496 13 831 10 882 14 042 10 882 14 042
457 n/a n/a 10 566 14 709 10 742 15 340 10 882 15 797 10 882 15 797
508 n/a n/a 10 882 15 867 10 882 16 815 10 882 17 552 10 882 17 552
IB700 241 8 074 9 583 8 249 9 619 8 952 9 724 9 478 9 794 9 829 9 829
302 8 671 10 988 8 881 11 058 9 654 11 198 10 285 11 304 10 672 11 374
356 9 232 12 251 9 443 12 322 10 250 12 532 10 952 12 673 11 409 12 743
406 9 724 13 445 9 970 13 515 10 917 14 042 11 619 14 042 12 111 14 042
IB800 200 6 705 7 407 6 845 7 477 7 407 7 758 7 828 7 969 8 109 8 109
219 7 477 7 793 7 547 7 828 7 793 7 934 7 969 8 039 8 109 8 109
235 7 793 8 109 7 934 9 689 8 109 9 689 8 109 9 689 8 109 9 759
241 7 863 8 320 8 004 9 864 8 320 9 864 8 320 9 684 8 320 9 864
286 8 249 9 513 8 530 10 812 9 408 10 812 9 864 10 812 9 864 10 812
302 8 846 11 163 9 057 11 163 9 864 11 163 10 461 11 163 10 882 11 163
356 9 373 12 602 9 583 12 637 10 321 12 743 10 882 12 848 11 233 12 883
406 9 899 13 971 10 075 14 042 10 742 14 252 10 882 14 428 11 233 14 533
457 n/a n/a 10 566 15 937 10 742 16 043 10 882 16 148 11 233 16 148
508 n/a n/a 10 882 17 271 10 882 17 833 10 882 18 254 11 584 18 254
IB900x 200 8 811 8 952 8 881 9 022 9 197 9 267 9 408 9 443 9 548 9 548
219 9 022 9 373 9 162 9 478 9 654 9 864 10 005 10 110 10 250 10 285
241 9 267 9 864 9 443 10 005 10 180 10 531 10 707 10 917 11 058 11 163
302 9 829 11 233 9 829 11 479 11 444 12 392 12 567 13 059 13 234 13 515
356 9 829 12 637 9 829 12 637 11 444 13 129 12 673 13 761 13 234 14 919
406 9 970 13 971 10 075 14 042 11 514 15 376 12 673 16 358 13 234 16 358
457 n/a n/a 10 566 15 937 11 233 16 885 11 760 17 622 13 234 17 622
508 n/a n/a 10 672 17 341 11 233 18 184 11 760 18 816 13 234 18 921
559 n/a n/a 10 321 18 219 11 128 19 132 11 760 19 799 13 094 20 185
610 n/a n/a 10 321 20 220 11 128 20 536 11 760 20 782 12 778 21 484

 

Table 4. Additional engineering properties (limit states design)Table footnote footnote (1)
Series Depth (mm) Factored interior reactionsTable footnote footnote (2) (N)
89-mm bearing 140-mm bearing
No stiffeners With stiffenersTable footnote footnote (3) No stiffeners With stiffenersTable footnote footnote (3)
IB400 200 15 165 15 481 16 218 16 499
219 15 165 16 043 16 218 16 639
235 15 165 16 534 16 218 16 639
241 15 165 16 639 16 639 16 639
286 17 552 19 623 19 728 19 728
302 17 552 19 658 19 728 20 782
356 17 552 19 833 21 765 24 257
406 17 552 20 009 21 765 25 626
IB600 200 15 165 15 481 16 218 16 499
219 15 165 16 043 16 218 17 517
235 15 165 18 956 16 218 18 965
241 15 165 19 237 16 639 19 237
286 17 552 21 273 19 728 21 273
302 17 552 21 589 19 728 22 045
356 17 552 22 572 21 765 24 257
406 17 552 23 520 21 765 25 626
457 17 552 24 046 21 765 26 223
508 17 552 24 222 21 765 26 820
IB700 241 17 552 19 658 17 552 19 658
302 17 552 22 747 20 431 22 747
356 17 552 25 486 21 765 25 486
406 17 552 28 083 21 765 28 083
IB800 200 15 235 15 481 16 218 16 499
219 15 270 16 043 16 218 17 517
235 16 218 18 956 16 218 18 956
241 17 341 19 237 17 341 19 237
286 19 728 21 273 19 728 21 273
302 19 764 22 326 22 045 22 326
356 21 765 25 275 23 239 25 731
406 21 765 28 083 23 450 28 785
457 21 765 29 663 21 765 29 663
508 21 765 30 541 21 765 30 541
IB900x 200 19 904 21 765 20 044 22 116
219 20 606 22 116 20 711 22 396
241 21 378 22 502 21 484 22 712
302 23 555 23 555 23 555 23 555
356 23 555 25 275 23 555 25 731
406 23 555 28 083 23 555 28 785
457 23 555 29 979 23 555 32 577
508 23 555 32 296 23 555 33 770
559 23 555 34 086 23 555 34 191
610 23 555 34 577 23 555 34 577

 

Additional test information for the products

The design values were obtained from testing to ASTM D5055-19, "Standard Specification for Establishing and Monitoring Structural Capacities of Prefabricated Wood I-Joists," and previous editions as specified in CSA O86-19, "Engineering Design in Wood," and in previous editions as summarized below. The manufacturer's published pre-engineered joist spans were designed in accordance with CSA O86-19.

Table 5. Additional test information for the products
Property Test information
Shear capacity The shear capacity of the specimens was established by combining data in accordance with ASTM D5055. Data from quality control (QC) tests were used to establish the applicable coefficient of variation, CVw, and the reliability normalization factor from Table 16.1 of CSA O86 was used to determine the specified strength.
Moment capacity The moment capacity qualification was carried out using the analytical method based on the characteristics of the flange material, with confirmatory testing in accordance with ASTM D5055. Data from QC tests were used to establish the applicable coefficient of variation, CVw, and the reliability normalization factor from Table 16.1 of CSA O86 was used to determine the specified strength.
Stiffness

An appropriate test program was used to confirm the stiffness capacity. The following formula was used to predict mid-span deflection:

deflection = (5wL4)/(384EI) + (wL2)/K

where:

deflection (in mm);

w = unfactored uniform load (kN/m);

L = design span (mm);

EI = flexural rigidity (kN·mm2); and

K = shear deflection factor (kN).

Note: EI and K are taken from the technical information.

End joints End joints were qualified as part of the flange tension qualification. The flanges are finger-joined at the plant, and regular tension testing is conducted.
Creep Specimens were tested for creep performance in accordance with ASTM D5055. The specimens recovered more than 90% of the basic dead load deflection.
Bearing length Tests were conducted to qualify, with and without web stiffeners, minimum end-bearing lengths of 38 mm, 44 mm, 89 mm and 102 mm, as well as interior bearing lengths of 89 mm and 140 mm. Qualification tests were used to establish the applicable coefficient of variation, CVw, and the reliability normalization factor from Table 16.1 of CSA O86 was used to determine the specified strength.
Adhesive qualification For the products manufactured at the Pohénégamook plant, all joints are bonded together using a polyurethane adhesive, UX-160/WD3-A322 (CCMC 13513-L).
Web stock The web stock complies with CAN/CSA O325.0-16, "Construction Sheathing."

 

Fire-protection options

The performance of the below fire-protection options are presented as additional information for authorities having jurisdiction. This section is beyond the scope of the CCMC's Code compliance opinion related to the evaluation of structural performance. 

Fire performance of innovative structural products

The CCMC Registry of Product Assessments contains opinions on the suitability-for-use of products intended as structural elements in houses. Although historically there has been no need to regulate the structural fire performance of houses, an inherent intent of the National Building Code of Canada (NBC) is that occupants have sufficient time to escape from a building in the event of a fire. There are many factors that may determine whether that intent is achieved. The fire endurance of structural elements may be one. However, its importance may be minimized by other factors such as combustible content load, early warning devices, smoke movement and toxicity, and fire department response time; all contributing to the overall system performance. Research is underway within the NRC Construction Research Centre to determine the critical factors that affect occupant escape from houses.

Some innovative structural products have been used in the marketplace for several years and have gained the confidence of design professionals, code authorities and users with respect to their performance under typical fire scenarios in today's house system. Some newer products have not been in service long enough to have gained that confidence and may present a more obvious concern.

The minimum fire performance of innovative structural materials, or alternative solutions, as compared to that of the NBC-specified conventional wood-frame construction, or acceptable solution, has been the subject of analysis and discussion for several years among fire officials, provincial and territorial regulators, and AHJs. In fire tests conducted between 2002 and 2008 at the NRC, the innovative structural joist systems tested, and currently in the marketplace (i.e., I-joists, C-channel steel joists, metal-plated wood trusses and metal-web trusses), had a time-to-collapse below the performance of exposed 38 mm × 235 mm (2 × 10) lumber joists.

The CCMC provides this floor fire performance information to the local AHJs across Canada to aid their decision-making on whether the fire performance of floors (i.e., the time to evacuate before failure occurs) for alternative joist systems performs “as well as” the inherent fire performance of exposed 38 mm × 235 mm (2 × 10) lumber joists. As is the case for all innovative products, designers and authorities should exercise judgment in considering the use of innovative structural products for houses. Unless otherwise stated, innovative structural products for houses have not been evaluated in the context of the NBC intent noted above.referrer

The CCMC has reviewed the below fire-protection options in comparison to the fire performance of an unprotected exposed 38 mm × 235 mm (2 x 10) floor joist system.  The presented fire-protection options perform "as well as" exposed 38 mm × 235 mm (2 × 10) lumber joists. It should be noted that the NBC reference in the compliance opinion of this evaluation exempts single-family houses constructed using conventional wood-frame construction, in accordance with Part 9 of the NBC, from requiring a fire-resistance rating (see Article 9.10.8.10. of Division B of the NBC 2015 and the NBC 2020). The below fire-protection options for alternative floor joists are not to be considered in sprinklered single-family houses or where fire-resistance-rated assemblies are required.

The fire-protection assemblies are applicable for the evaluated products as provided in Table 6 below.

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
IB400 38 × 63.5 FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
IB600 38 × 63.5 FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
IB700 38 × 89 FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
IB800 38 × 89 FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
IB900x 38 × 89 FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09

Industry-based fire-protection options

Fire-protection options

The details of the following industry-based fire-protection floor assembliesFootnote (1) are outlined in the figures below.

  1. FP-01 - 12.5 mm (1/2 in.) Gypsum Board Attached to Bottom of Flange
  2. FP-02 - 12.5 mm (1/2 in.) Gypsum Board Attached Directly to Web
  3. FP-03 - 12.5 mm (1/2 in.) Gypsum Board Attached Directly to Sides of Flange
  4. FP-04 - Mineral Wool Insulation
  5. FP-06 - 12.5 mm (1/2 in.) Gypsum Board Installed on Top of the Bottom Flange
  6. FP-07 - 15.8 mm (5/8 in.) Gypsum Board Installed on Top of the Bottom Flange
  7. FP-09 - Rockwool SAFE’n’Sound® Mineral Wool Insulation

Fire protection assembly details

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.

Fire protection of floors FP-01
Above and side projection section drawings for 1/2 inch gypsum board attached to bottom flange.
Figure 1. Fire protection of floors FP-01 - fire protection: 12.5 mm (1/2-in.) gypsum board attached to bottom of flange
  1. Floor sheathing: materials and installation in accordance with the NBC 2015.
  2. I-joist: installation in accordance with Section 3 of this Report. Maximum 24 in. on centre (o.c.) spacing. Applicable to all flange sizes. Minimum web thickness of 9.5 mm (3/8 in.).
  3. 12.5 mm (1/2 in.) gypsum board: materials and installation in accordance with the NBC 2015. 1 × 3 (nominal) wood furring strips are permitted to be installed perpendicular to the bottom flange of the I-joists at 400 mm (16 in.) o.c. provided that the gypsum boards are directly attached to the furring strips using 32 mm (1-1/4 in.) Type W drywall screws at 300 mm (12 in.) o.c. Gypsum board not required to be finished with tape and joint compound.

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

Fire protection of floors FP-02
Above and side projection section drawings for 1/2 inch gypsum board attached to web.
Figure 2. Fire protection of floors FP-02 - fire protection: 12.5 mm (1/2 in.) gypsum board attached directly to web
  1. 12.5 mm (1/2 in.) gypsum board attached to web
  2. installation requirements at web holes
  1. Floor sheathing: materials and installation in accordance with the NBC 2015.
  2. I-joist: installation in accordance with Section 3 of this Report. Maximum 24 in. on centre (o.c.) spacing. Minimum flange size of 38 mm (1-1/2 in.) thick × 50 mm (2 in.) wide. Minimum web thickness of 9.5 mm (3/8 in.). At hole location, fasteners shall be installed 25 mm (1 in.) from the edge and end of the gypsum board.
  3. 12.5 mm (1/2 in.) gypsum board: materials (over entire length of I-joist) not required to be finished with tape and joint compound. Fasteners: minimum 25 mm (1 in.) screws (Type W or Type S) or nails installed 25 mm (1 in.) from edges and ends and 400 mm (16 in.) o.c., top and bottom. Fasteners may be staggered from top to bottom.
  4. Fastener
  5. I-joist web
  6. Or
Fire protection of floors FP-03
Above and side projection for 1/2 inch gypsum board
Figure 3. Fire protection of floors FP-03 - fire protection: 12.5 mm (1/2 in.) gypsum board attached directly to sides of flange
  1. 12.5 mm (1/2 in.) gypsum board attached to sides of flange
  2. installation requirements at web holes
  1. Floor sheathing: materials and installation in accordance with the NBC 2015.
  2. I-joist: installation in accordance with Section 3 of this Report. Maximum 600 mm (24 in.) on centre (o.c.) spacing. Minimum flange size of 28.5 mm (1-1/8 in.) thick × 44.5 mm (1-3/4 in.) wide. Minimum web thickness of 9.5 mm (3/8 in.). At hole location, fasteners shall be installed 12.5 mm (1/2 in.) from the edge and 1 in. from the end of the gypsum board. Maximum fastener spacing shall be no more than 8 in. on gypsum board above and below the hole.
  3. 12.5 mm (1/2 in.) gypsum board: materials (over entire length of I-joist) not required to be finished with tape and joint compound. Fasteners: minimum 25 mm (1 in.) screws (Type W or Type S) or nails installed 12.5 mm (1/2 in.) from edges and 1 in. from ends, and 400 mm (16 in.) o.c., top and bottom. Fasteners may be staggered from top to bottom.
  4. Fastener
  5. I-Joist web
  6. Or
Fire protection of floors FP-04
Above and side projection for mineral wood insulation
Figure 4. Fire protection of floors FP-04 - fire protection: mineral wool insulation
  1. Floor sheathing: materials and installation in accordance with the NBC 2015.
  2. I-joist: installation in accordance with the "Conditions and limitations" section of this evaluation. Maximum 487 mm (19.2 in.) on centre (o.c.) spacing. Minimum flange size of 28.5 mm (1 1/8 in.) thick × 44.5 mm (1 3/4 in.) wide. Minimum web thickness of 9.5 mm (3/8 in.).
  3. Mineral wool insulation: minimum 46.5 kg/m3 (2.9 lb/ft3) (nominal) and 50 mm (2 in.) thick mineral wool insulation made of rock slag, complying with CAN/ULC-S702 and with CCMC Listing, installed without gaps between individual batts as shown with stay wire insulation supports, spaced no more than 600 mm (24 in.) apart and no more than 100 mm (4 in.) from ends of batts. Minimum 40 kg/m3 (2.5 lb/ft3) (nominal) and 50 mm (2 in.) thick mineral wool insulation shall be permitted if the I-joists are spaced no more than 400 mm (16 in.) o.c. Use minimum 387 mm (15.25 in.) and 470 mm (18.5 in.) wide batts when I-joist spacing is 400 mm (16 in.) and 487 mm (19.2 in.) o.c., respectively.

Note: As per NBC 2015, Sentence 9.25.2.3.(7), any insulation that may be subjected to mechanical damage is to be protected by a covering such as gypsum board, plywood, particleboard, OSB or hardboard.

 For assemblies where mineral-fibre insulation is installed to provide joist protection in a fire, as per NBC 2015, Sentence 9.25.2.3.(7), any insulation that may be subjected to mechanical damage is to be protected by a covering such as gypsum board, plywood, particleboard, oriented strandboard (OSB) or hardboard 

Fire protection of floors FP-06
Above projection and side projection for mineral wood insulation
Figure 5. Fire protection of floors FP-06 - fire protection: 12.5 mm (1/2-in.) gypsum board installed on top of the bottom flange
  1. Floor sheathing: materials and installation in accordance with NBC 2015.
  2. I-joist: installation in accordance with Section 3 of this Report. Maximum 487 mm (19.2 in.) on centre spacing. Minimum flange size of 28.5 mm (1-1/8 in.) thick × 50 mm (2 in.) wide. Minimum web thickness of 9.5 mm (3/8 in.).
  3. One layer of 12.5 mm (1/2 in.) lightweight or normal weight (nominal 7.3 kg/m2 (1.5 psf) minimum) gypsum wall board meeting ASTM C 1396, installed on the top of the bottom flange. Mechanical fastener or adhesive attachment to the top of the bottom flange is not required.
  1. 19.2 inches maximum
  2. Gypsum board length (see table below)
Table 7. Table for FP-06Table footnote footnote (3)
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.)
Fire protection of floors FP-07
Above projection and side projection for 5/8 inch gypsum board.
Figure 6. Fire protection of floors FP-07 - fire protection: 15.8 mm (5/8-inch) gypsum board installed on top of the bottom flange
  1. Floor sheathing: materials and installation in accordance with the NBC 2015.
  2. I-joist: installation in accordance with Section 3 of this Report. Maximum 600 mm (24 in.) on centre spacing. Minimum flange size of 28.5 mm (1-1/8 in.) thick × 50 mm (2 in.) wide. Minimum web thickness of 9.5 mm (3/8 in.).
  3. One layer of 15.8 mm (5/8 in.) lightweight or normal weight (nominal 9.3 kg/m2 (1.9 psf) minimum) gypsum wall board meeting ASTM C 1396, installed on the top of the bottom flange. Mechanical fastener or adhesive attachment to the top of the bottom flange is not required.
  1. 24 inches maximum
  2. Gypsum board length (see table below)
Table 8. Gypsum board length for FP-07Table footnote footnote (4)
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.)
Fire protection of floors FP-09
Above projection and side projection for Rockwool Safe'n'Sound
Figure 7. Fire protection of floors FP-09 - fire protection: Rockwool SAFE’n’Sound® mineral wool insulation
  1. floor sheathing: materials and installation in accordance with the NBC 2015.
  2. I-joist: installation in accordance with the "Conditions and limitations" section of this evaluation. Maximum 600 mm (24 in.) on centre (o.c.) spacing. Minimum flange size of 28.5 mm (1 1/8 in.) thick × 50 mm (2 in.) wide. Minimum web thickness of 9.5 mm (3/8 in.).
  3. mineral wool insulation: Rockwool SAFE’n’SOUND® minimum 40 kg/m3 (2.5 lb/ft3) (nominal) and 75 mm (3 in.) thick mineral wool batt insulation made of rock or furnace slag (ASTM C 665 Type 1-compliant) installed as shown with insulation stay wire supports, spaced no more than 600 mm (24 in.) apart and no more than 100 mm (4 in.) from ends of batts. Use minimum 387 mm (15.25 in.), 470 mm (18.5 in.) and 584 mm (23 in.) wide batts when I-joist spacing is 400 mm (16 in.), 487 mm (19.2 in.) and 600 mm (24 in.) o.c., respectively.

Note: As per NBC 2015, Sentence 9.25.2.3.(7), any insulation that may be subjected to mechanical damage is to be protected by a covering such as gypsum board, plywood, particleboard, OSB or hardboard.

For assemblies where mineral-fibre insulation is installed to provide joist protection in a fire, as per NBC 2015, Sentence 9.25.2.3.(7), any insulation that may be subjected to mechanical damage is to be protected by a covering such as gypsum board, plywood, particleboard, oriented strandboard (OSB) or hardboard 

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