[CCMC 13487-R] CCMC Canadian code compliance evaluation

When the products are used to support uniform loads only, the installation must be in accordance with the span tables (including vibration criteria^{Footnote (2)}) found in the document, dated November 2010 entitled:

• “Red-I Joists, Including Red-I45^™, Red-I65^™, Red-I90^™, and Red-I90H^™ Joists”

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 the installation guidelines require engineering on a case-by-case basis.

The manufacturer’s pre-engineered details within the document outlined above are limited in scope to building designs where the anticipated loads on the following structural details are not exceeded:

• uniform floor load tables;
• uniform roof load tables;
• floor span tables; and
• roof span tables.

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:

• rim joist and blocking resistance;
• rim board resistance;
• web stiffener requirements;
• floor and roof spans;
• web holes;
• specified hanger resistance;
• 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; and
• design of supporting foundation footings when the total load exceeds the NBC 2015 pre-engineered lumber 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.

The factored resistance and engineering properties for the products must not exceed the values set forth in Table 2 and Table 3.

The ends of all Red-I^™ 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 Red-I^™ 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 CAN/CSA-O86.

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

RedBuilt provides engineering and product support through the following contact information:

Telephone: 1-866-859-6757.

• This product must be identified with the phrase “CCMC 13487-R” along the product side. This CCMC number is only valid when it appears in conjunction with the certification mark of PFS Corporation.
• Damaged or defective joists must not be used, unless repaired in accordance with written instructions from the manufacturer.

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

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. 

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 is 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 5.

Industry-based fire-protection options

Fire-protection options

The details of the following industry-based fire-protection floor assemblies^{Footnote (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

 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

Fire protection of floors FP-03

Fire protection of floors FP-04

 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

Table 6. Table for FP-06^{Table 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

Table 7. Gypsum board length for FP-07^{Table 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

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