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[CCMC evaluation requirements] ANSI/APA PRR 410-2016, Grade: B1

From: National Research Council Canada

This document provides a summary of the minimum requirements imposed by the Canadian Construction Materials Centre (CCMC) for all evaluations based on the below criteria document. Additional requirements may be imposed by the CCMC when necessary for a particular evaluation, and are detailed in the individual evaluation.

Criteria document

Scope

These evaluations are structural-use panels sawn into rim board dimensions, re-sawn structural glued laminated timber and structural composite lumber manufactured specifically to meet the performance requirements of rim boards in wood-frame construction.

Grade B1 rim boards meeting the requirements of ANSI/APA PRR 410 have a thickness-based definition of:

  • Grade B1 (Performance Category 1-¼ or higher);

The maximum depth of these rim boards is 610 mm (24 in.). “APA Rim Board Plus” is equivalent to Grade B1 rim boards.

These rim boards are intended for use in engineered-wood joist floor assemblies in dry service conditions only, i.e., conditions where the mean equilibrium moisture content of solid-sawn lumber is less than 16%. The rim boards are manufactured to meet ANSI/APA PRR 410 and are subject to a third-party certification program accredited by the Standards Council of Canada.

Material requirements

The evaluation holder must demonstrate that the product meets the following requirements (additional requirements may be imposed by the CCMC when necessary, and are detailed in the individual evaluation):

The standard prescriptive and performance requirements are summarized below. This standard addresses the following aspects:

  1. dimensions and dimensional tolerances;
  2. structural performance:
    1. horizontal load transfer capacity;
    2. uniform vertical load capacity;
    3. 12.7-mm-diameter (½ in.) lag screw lateral resistance;
    4. concentrated vertical load capacity;
    5. edge nailing durability; and
    6. physical properties (not applicable to plywood panels, laminated veneer lumber, or glulam material):
      1. thickness swell,
      2. density, and
      3. internal bond.

Dimensions and dimensional tolerances

Dimensions and dimensional tolerances
Performance cCategory Thickness
mm (in.))		 Maximum dDepth
(mm (in.))		 Depth tTolerance Footnote (1) Footnote (2)
(mm (in.))		 Minimum tThickness Footnote (3)
(mm (in.))		 Maximum tThickness
(mm (in.))
1-¼ 31.8 (1-¼) 610 (24) +3.2 (+⅛)
−0 (−0)		 30.16 (1.188) 33.34 (1.313)

Structural performance

The horizontal load transfer capacity, uniform vertical load capacity, 12.7 mm (½ in.) diameter lag screw lateral resistance, and the concentrated vertical load capacity must meet the values outlined in the Factored resistances for performance-rated engineered wood rim boards used in Canada – Grade B1 table. This table and the Nailing schedule for performance-rated engineered wood rim boards for use in Canada table outline the design values for engineered buildings. These factored resistance values for limit states design are produced in accordance with the principles of CSA O86-14, “Engineering Design in Wood.”

To determine the factored resistances, tests are carried out in accordance with the standard, which also specifies sample preparation. All the samples are assembled and nailed in accordance with the nailing schedule shown in the Nailing schedule for performance-rated engineered wood rim boards for use in Canada table, which complies with the National Building Code of Canada (NBC) 2015 requirements.

Factored resistances Footnote (1) for performance-rated engineered wood rim boards used in Canada Footnote (2) – Grade B1
Performance cCategory Footnote (3) Depth (5)lLimitations
(mm)
φH Footnote (4)
(N/mm)
(d ≤ 610)		 φV Footnote (5)
(N/mm)
(d ≤ 406)		 φV Footnote (5)
(N/mm)
(406 < d ≤ 610)		 φZ Footnote (6)
(kN)
(d ≤ 610)		 φP Footnote (7)
(kN)
(406 < d ≤ 610)
1-¼ or higher 3.8 125.4 77.9 2.6 26.0

 

Specified edgewise bending properties Footnote (1) for performance-rated engineered wood rim boards used in Canada Footnote (2)

Rim bBoard gGrades F be, LSD Footnote (3)
(MPa)		 E e Footnote (4)
(MPa)		 F ve, LSD Footnote (5)
(MPa)		 F c⊥e, LSD Footnote (6)
(MPa)
All 7.6 3 793 1.8 6.3

 

Nailing schedule for performance-rated engineered wood rim boards for use in Canada Footnote (1)

Sheathing to rRim bBoard or jJoist Bottom pPlate through sSheathing to rRim bBoard Rim bBoard to sSill pPlates (tToe nNail) Joist to sSill pPlate (sSlanted) Rim bBoard to jJoist
51 mm (6d) common @ 150 mm (6 in.) o.c. 82 mm (12d) common @ 400 mm (15.7 in.) o.c.
or
82 mm (12d) common @ 150 mm (6 in.) o.c Footnote (2)		 82 mm (12d) common @ 150 mm (6 in.) o.c. 2 mm × 63.5 mm (8d) common 2 mm × 63.5 mm (8d) common

 

**Insert Figure 1**

Edge nailing durability criteria

The mean edge nailing durability of the conditioned samples must be at least 75% of the mean horizontal load transfer capacity of the unconditioned samples.

Physical Pproperties (not applicable to plywood panels, laminated veneer lumber or glulam material)

After conditioning, the mean thickness swell must not exceed 10% and the thickness swell of individual samples must not exceed 12%. The density values and internal bond measurements are used to establish quality control values for the quality assurance use.

Vapour barrier

A 15 ng/(Pa·s·m2) vapour barrier must be installed on the interior side to address the requirements of Article 9.25.4.2., Vapour Barrier Materials, and Subsection 9.25.5., Properties and Position of Materials in the Building Envelope, of Division B of the NBC 2015.

Engineering support

Engineering support for performance-rated engineered wood rim boards is provided by either the third-party certification agency or by the manufacturer. Check the product Listing for engineering support contact information.

Labelling

All performance-rated engineered wood rim boards must be labelled with the following information:

  • rim board grade qualified in accordance with ANSI/APA PRR 410;
  • the performance category;
  • the labelled rim board thickness;
  • the mill name or identification number;
  • the qualified agency name or logo;
  • the symbol of “ANSI/APA PRR 410” signifying conformance to the standard;
  • any manufacturer designations, which must be separated from the grade- marks or trademarks of the qualified agency by not less than 152 mm (6 in.); and
  • the CCMC Listing number.

 

© American National Standards Institute. This information is reproduced from the referenced standard published by the American National Standards Institute (ANSI). The full version of the Standard should be referenced, and can be obtained from ANSI.

Installation requirements

The CCMC requires that evaluation holders provide instructions for the installation of the product(s) that:

Manufacturing requirements

The CCMC requires that evaluation holders, at a minimum, demonstrate that the associated production process:

Labelling requirements

The CCMC requires that evaluation holders ensure that product labels:

Classification information

Products falling within the scope of this document are commonly classified by:

MasterFormat

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Published CCMC evaluations

The following products have been evaluated to these requirements by the CCMC:

CCMC number:Manufacturer:Product name(s):
13237-LAPA – The Engineered Wood Association Fiber Strong® Rim Board
13238-LAPA – The Engineered Wood Association Tolko OSB Rim Board Plus
13248-LAPA – The Engineered Wood Association Grade B1, Grade B2, Grade C1, Grade C2, Grade A
13308-LAPA – The Engineered Wood Association LP® SolidStart® OSB Rim Board Grade B1, LP® SolidStart® OSB Rim Board Grade B2, LP® SolidStart® OSB Rim Board Grade C1, LP® SolidStart® OSB Rim Board Grade C2

Code references

This standard is not referenced in the National Building Code of Canada
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