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[CCMC 13132-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 product, when used as joists in floor and roof applications in accordance with the conditions and limitations stated in this evaluation, complies with the following code:

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

Ontario Building Code

Ruling No. 05-05-130 (13132-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 2005-05-15 (revised 2017-03-22) 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 name

TJI® SERIES JOISTS

Product description

This product’s family of joists consists of prefabricated wood I-joists consisting of two continuous Microllam® LVL (refer to CCMC 08675-R), TimberStrand® LSL (refer to CCMC 12627-R), or sawn lumber flanges glued to one of the two thicknesses of oriented strandboard (OSB) web (9.5 mm or 11.0 mm).

The dimensions of the different products in this series are listed in Table 1.

For TJI® s31, s33 and s47 Series Joists, the web-flange connection is made by inserting the profiled OSB web into a tapered groove in the centre of the flange. The web material is manufactured in 2 743-mm lengths and end-jointed by gluing a full thickness V-joint. The flange fingerjoints are bonded with a polyurethane adhesive (refer to CCMC 13512-L) and the web-to-web and web-to-flange joints are bonded with a phenolresorcinol waterproof adhesive (refer to CCMC 13054-L).

For the other joists in this series, the web-flange connection is made by inserting the profiled OSB web into a machined, tapered groove in the centre of the flange. The web segments are installed into the flanges in 1 220-mm or 1 372-mm lengths. The web segments are serrated and all the joints are bonded with a phenol-resorcinol waterproof adhesive (refer to CCMC 13054-L).

All vented joists are 406 mm deep and are manufactured with 64-mm-diameter holes cut through the web at 305 mm on centre (o.c.) near one flange. The vented joist is used in roof deck or roof joist applications only.

Table 1. Product dimensions
ProductFootnote (1) Flange size (width × thickness) (mm) Web thickness (mm) Range of joist depths (mm)
TJI® 110 Min. 44.5 × 31.8 9.5 241 to 356
TJI® 210 Min. 52.8 × 31.8 9.5 241 to 406
TJI® 230 Min. 58.5 × 31.8 9.5 241 to 406
TJI® 360 Min. 58.5 × 35 9.5 241 to 508
TJI® 560 Min. 89 × 35 11.0 241 to 508
TJI® 560D 89 × 38 11.0 241 to 762
TJI® s31 63.5 × 38 9.5 241 to 406
TJI® s33 63.5 × 38 9.5 241 to 406
TJI® s47 89 × 38 11.0 302 to 508
TJI® L65 63.5 × 38 11.0 241 to 762
TJI® L90 89 × 38 11.0 241 to 762
TJI® H90 89 × 44.5 11.0 241 to 762

Manufacturing plants

This evaluation is limited to products produced at the following plants:

Product nameManufacturing plants
Castleberry, AL, USEugene, OR, USNatchitoches, LA, USStayton, OR, US
TJI® SERIES JOISTSProduct evaluated by the CCMCProduct evaluated by the CCMCProduct evaluated by the CCMCProduct 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 has been provided to the CCMC by Weyerhaeuser to demonstrate compliance with Part 9, Housing and Small Buildings, of the NBC 2015 for acceptance by the local authority having jurisdiction (AHJ):
    1. Weyerhaeuser pre-engineered floor span charts

      When the products are used to support uniform loads only, the installation must be in accordance with the span tables(including vibration criteriaFootnote (2) ) found in the specifier’s guides, in limit states design for Canada entitled:

      1. “TJI® 110, 210, 230, 360, 560 Joists,” (#TJ-4500) (Limit States Design for Western Canada), dated July 2019; and
      2. “TJI® s31, s33, s47 Joists,” (#TJ-4510) (Limit States Design for Eastern Canada), dated July 2019.

      The products must be installed in accordance with Weyerhaeuser’s installation guidelines noted in these documentsfor those applications falling within the scope of the documents. Applications outside the scope of these installation guidelines require engineering on a caseby-case basis.

    2. Weyerhaeuser pre-engineered installation details

      Weyerhaeuser’s pre-engineered details within the documents outlined in i. above are limited in scope to building designs where the anticipated loads on the following structural details are not exceeded:

      • rim joist and blocking resistance (page 27 of (1) and page 12 of (2));
      • rim board resistance (page 27 of (1) and page 12 of (2));
      • web stiffener requirements (pages 25–26 of (1) and pages 10–11 of (2));
      • floor span tables (pages 7–9 and 17–18 of (1) and pages 6–8 of (2));
      • load-bearing cantilever tables (pages 10–11 and 20–21 of (1) and pages 14–15 of (2));
      • web hole tables (pages 16 and 24 of (1) and page 13 of (2));
      • roof span tables (pages 12 and 19 of (1), page 16 of (2));
      • roof uniform load tables (pages 13 and 19 of (1) and page 17 of (2)); and
      • specified hanger factored resistance (pages 14–15 and 22–23 of (1), pages 22–23 of (2)).
    3. Engineering required

      For structural applications beyond the scope/limitations of the above-referenced Weyerhaeuser publications, or when required by the AHJ, the drawings or related documents must bear the authorized seal of a professional engineer or other certified authority approved by the AHJ who is skilled in wood design and licensed to practise under the appropriate provincial or territorial legislation.

      Installations beyond the scope and limitations of i. and ii. imply, but are not limited to, the following:

      • higher loads/longer spans than the manufacturer’s pre-engineered details;
      • concentrated loads;
      • offset bearing walls;
      • areas of high wind or high seismicity;
      • stair openings;
      • design of supporting wall studs/beams when the total load exceeds the NBC 2015 pre-engineered floor/roof joist tables;
      • design of supporting foundation footings when the total load exceeds the NBC 2015 pre-engineered floor/roof joist tables; and
      • fire resistance (see applicable fire-resistance assembly listings for special joist and adhesives used).

      The engineer, or AHJ-approved certified authority, must design in accordance with CSA O86-14, "Engineering Design in Wood," and may use the “Engineering Guide for Wood Frame Construction” published by the Canadian Wood Council as a guide.

      The factored resistance and engineering properties for the products must not exceed the values set forth in the tables in the Design requirements section.

      The ends of all TJI® Series Joists members used as joists, rafters and beams must be restrained to prevent rollover. This is normally achieved by attaching a diaphragm sheathing to the top or to the compression edge, and to an end wall or shear transfer panel capable of transferring a minimum unfactored uniform load of 730 N/m or the required shear forces due to wind or seismic conditions. Blocking or cross-bracing with equivalent strength may be used.

      The compression edges of all TJI® Series Joists members used as joists and rafters must be laterally supported at least every 610 mm, except where design is done in accordance with CSA O86.

      Nailing of the products must be in accordance with Weyerhaeuser’s engineered details provided on a case-by-case basis.

    4. Engineering support provided by manufacturer

      Weyerhaeuser may provide engineering services in conjunction with Weyerhaeuser product specification, and offers the following support contact number for their Canadian offices: 888-453-8358.

  • This product must be identified with the phrase “CCMC 13132-R” along the side of the product. This CCMC number is only valid when it appears in conjunction with the WHI certification mark of Intertek Testing Services and/or the mark of PFS Corporation, and/or in conjunction with the certification mark of APA-EWS for the TJI® s31, TJI® s33, and TJI® s47 joists.

  Technical information

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

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

General

The evaluation holder has submitted technical documentation for CCMC’s evaluation. Testing was conducted at laboratories recognized by 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 Conditions and limitations.

 Design requirements

Table 2. Basic engineering properties of TJI® Series Joists
Basic properties – limit states design
Product Joist depth (mm) Joist weight (N/m) Factored resistance EI × 106 (kN·mm2) K × 104 (kN/m)
MomentFootnote (1) (N·m) Vertical shear (N)
TJI® 110 241 33 5 635 8 565 451 7.9
302 37 7125 10 945 766 7.9
356 41 8 435 13 055 1 125 7.9
TJI® 210 241 37 6 765 9 340 534 7.9
302 41 8 560 11 610 904 7.9
356 45 10 125 13 655 1 326 7.9
406 48 11 590 15 370 1 805 7.9
TJI® 230 241 40 7 510 9 340 591 7.9
302 44 9 505 11 610 996 7.9
356 48 11 250 13 655 1 461 7.9
406 51 12 875 15 370 1 983 7.9
406V 51 12 875 12 500 1 983 7.9
TJI® 360 241 40 10 800 10 010 715 7.9
302 44 13 940 11 965 1 202 7.9
356 48 16 540 13 725 1 756 7.9
406 51 18 955 15 370 2 382 7.9
457 54 21 345 17 035 3 114 7.9
508 58 23 705 18 680 3 949 7.9
TJI® 560 241 53 16 590 11 720 1 085 9.2
302 58 21 415 14 390 1 825 9.2
356 62 25 430 16 770 2 657 9.2
406 66 29 145 19 040 3 593 9.2
457 70 32 815 21 285 4 681 9.2
508 74 36 455 23 485 5 923 9.2
TJI® 560D 241 56 16 720 11 720 1 093 9.2
302 61 21 660 14 390 1 845 9.2
356 65 25 775 16 770 2 698 9.2
406 69 29 575 19 040 3 653 9.2
457 73 33 340 21 285 4 767 9.2
508 77 37 060 23 485 6 041 9.2
559 81 40 760 25 310 7 479 9.2
610 85 44 425 22 465 9 083 9.2
660 89 48 065 22 465 10 857 9.2
711 93 51 675 22 465 12 808 9.2
762 97 55 270 22 465 14 937 9.2
TJI® s31 241 38 6 765 8 450 588 7.9
302 42 8 555 10 740 999 7.9
356 45 10 130 12 790 1 466 7.9
406 50 11 590 14 500 1 997 7.9
TJI® s33 241 38 8 575 8 450 694 7.9
302 42 11 110 10 740 1 179 7.9
356 45 13 375 12 790 1 728 7.9
406 50 15 510 14 500 2 347 7.9
TJI® s47 302 53 15 715 13 525 1 647 9.2
356 55 18 925 14 925 2 411 9.2
406 58 21 950 16 370 3 272 9.2
457 63 24 820 17 795 4 273 9.2
508 66 27 470 19 240 5 421 9.2
Table 3. Reaction engineering properties of TJI® Series JoistsFootnote (1)
Reaction properties – limit states design
Product Joist depth (mm) Factored end reaction (N) Factored intermediate reaction (N)
45-mm bearing length 89-mm bearing length Web stiffener nailsFootnote (2) 89-mm bearing length 133-mm bearing length Web stiffener nailsFootnote (2)
Web stiffeners Web stiffeners Web stiffeners Web stiffeners
No Yes No Yes No Yes No Yes
TJI® 110 241 6 385 N/A 8 565 N/A N/A 13 590 N/A 16 480 N/A N/A
302 6 385 8 385 9 655 10 945 3-63.5 13 590 15 900 16 480 18 795 3-63.5
356 6 385 8 385 9 655 11 965 3-63.5 13 590 15 900 16 480 18 795 3-63.5
TJI® 210 241 7 050 N/A 9 340 N/A N/A 15 055 N/A 18 015 N/A N/A
302 7 050 9 365 10 255 11 610 3-63.5 15 055 17 370 18 015 20 330 3-63.5
356 7 050 9 365 10 255 12 545 3-63.5 15 055 17 370 18 015 20 330 3-63.5
406 7 050 9 365 10 255 12 454 3-63.5 15 055 17 370 18 015 20 330 3-63.5
TJI® 230 241 7 450 N/A 9 340 N/A N/A 16 905 N/A 19 615 N/A N/A
302 7 450 9 740 10 430 11 610 3-63.5 16 905 19 215 19 615 21 905 3-63.5
356 7 450 9 740 10 430 12 720 3-63.5 16 905 19 215 19 615 21 905 3-63.5
406 7 450 9 740 10 430 12 720 3-63.5 16 905 19 215 19 615 21 905 3-63.5
406V 7 450 9 740 10 430 12 720 3-63.5 16 905 19 215 19 615 21 905 3-63.5
TJI® 360 241 7 585 N/A 10 010 N/A N/A 17 280 N/A 21 085 N/A N/A
302 7 585 9 895 10 585 11 965 3-63.5 17 280 19 570 21 085 23 375 3-63.5
356 7 585 9 895 10 585 12 880 3-63.5 17 280 19 570 21 085 23 375 3-63.5
406 7 585 9 895 10 585 12 880 3-63.5 17 280 19 570 21 085 23 375 3-63.5
457 7 585 9 895 10 585 12 880 3-63.5 17 280 19 570 21 085 23 375 3-63.5
508 7 585 9 895 10 585 12 880 3-63.5 17 280 19 570 21 085 23 375 3-63.5
TJI® 560 241 8 875 N/A 11 720 N/A N/A 21 060 N/A 24 265 N/A N/A
302 8 875 11 920 12 100 14 390 3-89 21 060 24 130 24 265 27 310 3-89
356 8 875 11 920 12 100 15 170 3-89 21 060 24 130 24 265 27 310 3-89
406 8 875 11 920 12 100 15 170 3-89 21 060 24 130 24 265 27 310 3-89
457 8 875 11 920 12 100 15 170 3-89 21 060 24 130 24 265 27 310 3-89
508 8 875 11 920 12 100 15 170 3-89 21 060 24 130 24 265 27 310 3-89
TJI® 560D 241 8 875 N/A 11 720 N/A N/A 21 060 N/A 24 265 N/A N/A
302 8 875 11 945 12 120 14 390 3-89 21 060 24 130 24 265 27 310 3-89
356 8 875 11 945 12 120 15 170 3-89 21 060 24 130 24 265 27 310 3-89
406 8 875 12 965 12 120 16 190 4-89 21 060 25 130 24 265 28 335 4-89
457 8 875 12 965 12 120 16 190 4-89 21 060 25 130 24 265 28 335 4-89
508 8 875 13 965 12 120 17 215 5-89 21 060 26 115 24 265 29 360 5-89
559 N/A 14 990 N/A 18 215 6-89 N/A 32 270 N/A 35 475 11-89
610 N/A 14 990 N/A 18 215 6-89 N/A 34 320 N/A 37 505 13-89
660 N/A 16 015 N/A 19 240 7-89 N/A 35 340 N/A 38 520 14-89
711 N/A 16 750 N/A 20 260 8-89 N/A 36 340 N/A 39 545 15-89
762 N/A 16 750 N/A 20 260 8-89 N/A 37 100 N/A 41 590 17-89
TJI® s31 241 7 585 N/A 8 450 N/A N/A 19 350 N/A 21 905 N/A N/A
302 8 430 10 720 10 320 10 740 3-63.5 19 350 21 640 22 350 24 665 3-63.5
356 8 430 10 720 10 320 12 635 3-63.5 19 350 21 640 22 350 24 665 3-63.5
406 8 430 10 720 10 320 12 635 3-63.5 19 350 21 640 22 350 24 665 3-63.5
TJI® s33 241 7 585 N/A 8 450 N/A N/A 19 350 N/A 21 905 N/A N/A
302 8 430 10 720 10 320 10 740 3-63.5 19 350 21 640 22 350 24 665 3-63.5
356 8 430 10 720 10 320 12 635 3-63.5 19 350 21 640 22 350 24 665 3-63.5
406 8 430 10 720 10 320 12 635 3-63.5 19 350 21 640 22 350 24 665 3-63.5
TJI® s47 302 8 985 12 055 10 455 13 525 3-89 19 370 22 440 22 440 25 490 3-89
356 8 985 12 055 10 455 13 525 3-89 21 195 24 265 23 775 26 825 3-89
406 8 985 12 055 10 455 13 525 3-89 22 465 25 535 24 930 27 980 3-89
457 8 985 12 055 10 455 13 525 3-89 22 465 25 535 25 245 28 290 3-89
508 8 985 12 055 10 455 13 525 3-89 22 465 25 535 25 245 28 290 3-89
Table 4. Basic engineering properties of TJI® Series Joists – custom applications
Basic properties – limit states design
Product Joist depth (mm) Weight (N/m) Factored resistance EI × 106 (kN·mm2) K × 104 (kN/m)
MomentFootnote (1) (N·m) Vertical shear (N)
TJI® L65 241 44 11 755 11 765 755 9.2
302 49 15 225 13 525 1 291 9.2
356 53 18 105 14 925 1 911 9.2
406 57 20 770 16 370 2 620 9.2
457 61 23 410 17 795 3 458 9.2
508 65 26 025 19 240 4 434 9.2
559 69 28 615 20 615 5 550 9.2
610 73 31 185 21 485 6 813 9.2
660 77 33 740 20 350 8 231 9.2
711 81 36 275 20 350 9 806 9.2
762 85 38 795 20 350 11 551 9.2
TJI® L90 241 56 16 725 11 765 1 047 9.2
302 61 21 665 13 525 1 782 9.2
356 65 25 775 14 925 2 620 9.2
406 69 29 575 16 370 3 576 9.2
457 73 33 330 17 795 4 693 9.2
508 77 37 060 19 240 5 984 9.2
559 81 40 755 20 615 7 452 9.2
610 85 44 425 21 485 9 104 9.2
660 89 48 065 20 350 10 946 9.2
711 93 51 675 20 350 12 985 9.2
762 97 55 275 20 350 15 227 9.2
TJI® H90 302 67 24 715 13 525 1 972 9.2
356 71 29 525 14 925 2 914 9.2
406 75 33 970 16 370 3 985 9.2
457 79 38 360 17 795 5 242 9.2
508 83 42 715 19 240 6 690 9.2
559 87 47 035 20 615 8 335 9.2
610 91 51 315 21 485 10 184 9.2
660 95 55 575 20 350 12 244 9.2
711 99 59 800 20 350 14 519 9.2
762 103 64 000 20 350 17 018 9.2
Table 5. Reaction engineering properties of TJI® Series Joists – custom applicationsFootnote (1)
Reaction properties
Product Joist depth (mm) Factored end reaction (N) Factored intermediate reaction (N)
45-mm bearing length 89-mm bearing length Web stiffener nailsFootnote (2) 89-mm bearing length 133-mm bearing length Web stiffener nailsFootnote (2)
133-mm bearing lengthFootnote (3) 178-mm bearing lengthFootnote (4)
Web stiffeners Web stiffeners Web stiffeners Web stiffeners
No Yes No Yes No Yes No Yes
TJI® L65 241 9 075 N/A 11 765 N/A N/A 19 350 N/A 23 685 N/A N/A
302 9 075 11 385 12 235 13 525 3-A 19 350 21 640 23 685 26 000 3-A
356 9 075 11 965 12 235 14 925 5-A 19 350 23 175 23 685 27 535 5-A
406 9 075 11 965 12 235 16 370 6-A 19 350 23 955 23 685 28 290 6-A
457 9 075 11 965 12 235 17 595 7-A 19 350 24 710 23 685 29 070 7-A
508 N/A 11 965 N/A 18 370 8-A N/A 25 490 N/A 29 825 8-A
559 N/A 11 965 N/A 19 125 9-A N/A 26 245 N/A 30 605 9-A
610 N/A 11 965 N/A 19 905 10-A N/A 26 510 N/A 31 360 10-A
660 N/A 11 965 N/A 20 350 11-A N/A 32 140 N/A 36 475 11-A
711 N/A 11 965 N/A 20 350 12-A N/A 32 895 N/A 37 255 12-A
762 N/A 11 965 N/A 20 350 13-A N/A 33 675 N/A 38 030 13-A
TJI® L90 241 9 075 N/A 11 765 N/A N/A 22 710 N/A 26 645 N/A N/A
302 9 075 11 120 12 235 13 525 2-B 22 710 24 755 26 645 28 670 2-B
356 9 075 12 145 12 235 14 925 3-B 22 710 25 755 26 645 29 690 3-B
406 9 075 13 165 12 235 16 305 4-B 22 710 26 780 26 645 30 715 4-B
457 9 075 13 165 12 235 16 305 4-B 22 710 26 780 26 645 30 715 4-B
508 N/A 14 170 N/A 17 325 5-B N/A 27 800 N/A 31 740 5-B
559 N/A 15 190 N/A 18 350 6-B N/A 33 920 N/A 37 885 11-B
610 N/A 15 190 N/A 18 350 6-B N/A 35 940 N/A 39 880 13-B
660 N/A 16 215 N/A 19 350 7-B N/A 40 700 N/A 40 700 14-B
711 N/A 16 745 N/A 20 350 8-B N/A 40 700 N/A 40 700 15-B
762 N/A 16 745 N/A 20 350 8-B N/A 40 700 N/A 40 700 17-B
TJI® H90 302 9 075 11 120 12 235 13 525 2-B 22 710 24 755 26 645 28 670 2-B
356 9 075 12 145 12 235 14 925 3-B 22 710 25 755 26 645 29 690 3-B
406 9 075 13 165 12 235 16 305 4-B 22 710 26 780 26 645 30 715 4-B
457 9 075 13 165 12 235 16 305 4-B 22 710 26 780 26 645 30 715 4-B
508 N/A 14 170 N/A 17 325 5-B N/A 27 800 N/A 31 740 5-B
559 N/A 15 190 N/A 18 350 6-B N/A 33 920 N/A 37 855 11-B
610 N/A 15 190 N/A 18 350 6-B N/A 35 940 N/A 39 880 13-B
660 N/A 16 215 N/A 19 350 7-B N/A 40 700 N/A 40 700 14-B
711 N/A 16 745 N/A 20 350 8-B N/A 40 700 N/A 40 700 15-B
762 N/A 16 745 N/A 20 350 8-B N/A 40 700 N/A 40 700 17-B

 

Additional engineering data and load/span tables are available from the manufacturer. Note that RedBuilt, LLC is the owner of the Stayton, OR plant and manufactures TJI® Series Joists for Weyerhaeuser according to Weyerhaeuser Manufacturing Standards. The TJI® s31, s33 and s47 series are manufactured at the EACOM Timber Corporation plant in Sault Ste. Marie, ON.

Additional test information for the products

The original design values obtained from testing to ASTM D5055-04 and -08a, “Standard Specification for Establishing and Monitoring Structural Capacities of Prefabricated Wood I-Joists,” as specified in CAN/CSA-O86-01 and -09, “Engineering Design in Wood,” are summarized below. The manufacturer’s published pre-engineered joist spans were designed in accordance with CSA O86-14.

Table 6. 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 D5055-04. Data from quality control (QC) tests have been used to establish the applicable coefficient of variation, CVw, and the reliability normalization factor from Table 13.2.3.2 of CAN/CSA-O86-01 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 D5055-04. Data from QC tests have been used to establish the applicable coefficient of variation, CVw, and the reliability normalization factor from Table 13.2.3.2 of CAN/CSA-O86-01 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 x 103) + (wL2)/Kd

where: w = load (kN/m), L = span (mm), d = joist depth (mm), and EI and K are taken from the Technical information section.

End joints End joints were qualified as part of the flange tension qualification. The flanges are in-plant fingerjointed, and regular tension testing is conducted.
Creep Specimens were tested for creep performance in accordance with ASTM D5055-04. The specimens recovered more than 90% of the basic dead load deflection.
Bearing length The product reaction properties listed in Table 3 and Table 5 are specific to bearing lengths shown and are based on a rational bearing analysis methodology applicable to TJI® Series Joists. Data submitted confirm satisfactory performance to the rational methodology. Reaction properties for end or intermediate bearing lengths within ranges shown in Table 3 and Table 5 may be determined by linear interpolation. Extrapolation of reaction properties in Table 3 and Table 5 is not allowed.
Adhesive qualification For the TJI® s31, s33 and s47 Series Joists, the adhesive for the flange fingerjoints is a polyurethane adhesive (see CCMC 13512-L). The other adhesives used comply with CSA O112.7-M1977, “Resorcinol and Phenol-Resorcinol Resin Adhesives for Wood (Room- and Intermediate- Temperature Curing)” (see CCMC 13054-L). For the remaining products in this series the adhesive used complies with CSA O112.7-M1977, “Resorcinol and Phenol-Resorcinol Resin Adhesives for Wood (Room- and Intermediate- Temperature Curing)” (see CCMC 13054-L).
Web stock The web stock complies with CAN/CSA-O325.0-92, “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 × 10) floor joist system.  The presented fire-protection options 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 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 following fire protection assemblies are applicable for the evaluated products as provided in Table 7.

Table 7. Applicable TJI® Series Joists for fire-protection assemblies based on flange sizes
Product Flange size (thickness × width) (mm) Fire protection assembly
TJI® 110 31.8 × 44.5 FP-01, FP-03, FP-04
TJI® 210 31.8 × 52.8 FP-01, FP-03, FP-04, FP-06, FP-07, FP-09
TJI® 230 31.8 × 58.5 FP-01, FP-03, FP-04, FP-06, FP-07, FP-09
TJI® 360 35 × 58.5 FP-01, FP-03, FP-04, FP-06, FP-07, FP-09
TJI® 560 35 × 89 FP-01, FP-03, FP-04, FP-06, FP-07, FP-09
TJI® 560D 38 × 89 FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
TJI® s31 38 × 63.5 FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
TJI® s33 38 × 63.5  FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
TJI® s47 38 × 89 FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
TJI® L65 38 × 63.5 FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
TJI® L90 38 × 89 FP-01, FP-02, FP-03, FP-04, FP-06, FP-07, FP-09
TJI® H90 44.5 × 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 8. 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 9. 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 

Administrative information

Use of Canadian Construction Materials Centre (CCMC) assessments

This assessment must be read in the context of the entire CCMC Registry of Product Assessments, any applicable building code or by-law requirements, and/or any other regulatory requirements (for example, the Canada Consumer Product Safety Act, the Canadian Environmental Protection Act, etc.).

It is the responsibility of the user to confirm that the assessment they are using is current and has not been withdrawn or superseded by a later version on the CCMC Registry of Product Assessments.

Disclaimer

The National Research Council of Canada (NRC) has evaluated only the characteristics of the specific product described herein. The information and opinions in this evaluation are directed to those who have the appropriate degree of experience to use and apply its contents (such as authorities having jurisdiction, design professionals and specifiers). This evaluation is valid when the product is used as part of permitted construction, respecting all conditions and limitations stated in the evaluation, and in accordance with applicable building codes and by-laws.

This evaluation is provided without representation, warranty or guarantee of any kind, expressed or implied, and the NRC provides no endorsement for any evaluated product. The NRC accepts no responsibility whatsoever arising in any way from any and all use of or reliance on the information contained herein or the use of any evaluated product. The NRC is not undertaking to render professional or other services on behalf of any person or entity nor to perform any duty owed by any person or entity to another person or entity.

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