[CCMC 12969-R] CCMC Canadian code compliance evaluation

It is the opinion of the Canadian Construction Materials Centre that the evaluated products, when used as an exterior wall cladding designed to be a weather barrier and to provide thermal insulation in accordance with the conditions and limitations stated in this evaluation, comply with the following codes:

National Building Code of Canada 2010

National Building Code of Canada 2015

Ontario Building Code

Ruling No. 00-13-84 (12969-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 2006-11-01 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 names

• InsulROCK
• PUCCS
• PUCCS NC

Product description

The products are non-loadbearing exterior insulation and finish systems (EIFS) that can be assembled in panels under factory-controlled conditions, or field-applied. The systems are composed of the following key components:

• a water-resistive barrier (WRB),
• an adhesive or mechanical fastener attachment,
• an insulation board, and
• a coating system (lamina).

NOTE: The lamina refers to all coats (base and finish) applied to the outer face of the insulation board together with the glass-fibre mesh reinforcement.

The following describes the different components of the systems.

Substrates

For applications falling under the scope of this evaluation, the substrate can be brick, masonry, monolithic concrete walls, and/or cementitious panels, glass mat-surfaced gypsum boards, plywood or oriented strandboard (OSB) over wood or steel framing. Gaps between the sheathing boards installed horizontally over framed walls must not exceed 3.0 mm.

Water-resistive barrier (WRB)

The water-resistive barrier (WRB) is a coating or self-adhered modified bituminous membrane installed to provide, along with other built-in features, the second line of defence against water infiltration reaching the structure. The WRB must be applied in accordance with the products’ installation manuals.

When the WRB is a coating, the continuity of the second plane of protection across joints and junctions at openings, penetrations and expansion joints must be maintained through the use of accessories such as self-adhering membranes, tapes, etc., as specified by the manufacturer, prior to the installation of these systems. Furthermore, in order to provide the intended level of protection against water infiltration, the coating must be installed in two coats with sufficient time between applications to allow the first coat to cure before the second coat is applied.

When the WRB is a single layer of self-adhered modified bituminous membrane installed over the substrate and around penetrations and openings, the insulation boards must be attached via mechanical fasteners to the studs or to the substrate that supports the cladding.

The products use the following coatings as WRBs:

Trowel-applied coatings

• Cement Bear is a polymer-based, fibre-reinforced, wet paste coating supplied in 19-L/27-kg pails and mixed on-site with Type 10 Portland cement (1:1 by weight). It is intended for use on glass-fibre-faced gypsum sheathing, cement board, concrete or masonry substrates. It is trowel-applied in a continuous layer over the substrate to achieve a minimum wet thickness of 1.25 mm per coat. Cement Bear is also used to pre-coat gaps between sheathing boards prior to the application of the WRB to the field surface of the sheathing boards. This is required for the application of Roller Bear and FRI Bear.
• FRI Bear is a factory-blended, ready-to-use, non-cementitious polymeric wet mix coating supplied in 19-L/25-kg pails. It is intended for use exclusively over wood substrates. It is applied in a continuous layer to achieve a minimum thickness of 0.28 mm per coat. FRI Bear is applied in a single layer in conjunction with a second layer of Polar Bear.
• Polar Bear is a factory-blended, ready-to-use, non-cementitious polymeric wet mix coating supplied in 19-L/26-kg pails. It is intended for use on all substrates, including wood. It is applied with a flat stainless steel trowel in a continuous layer to achieve a minimum wet thickness of 1.5 mm per coat. Polar Bear is also used to pre-coat gaps between sheathing boards prior to the application of the WRB to the field surface of the sheathing boards. This is required for the application of Roller Bear and FRI Bear. Polar Bear may also be used to wrap rough openings and penetrations.
• Vapour Block is a polymer-based, elastomeric, wet paste coating supplied in 19-L/26-kg pails. It is intended for use on glass-fibre-faced gypsum sheathing, cement board, concrete, or masonry substrates. It is trowel-applied in a continuous layer over the substrate to achieve a minimum dry thickness of 0.8 mm per coat.

Spray-, brush- or roller-applied coatings

Roller Bear is a factory-blended, ready-to-use, non-cementitious polymeric wet mix coating supplied in 19-L/28-kg pails. It is intended for use over all acceptable substrates identified in the Water-Resistive Barrier section. It is applied in a continuous layer to achieve a minimum thickness of 0.28 mm per coat. Roller Bear is applied in a single coat when used in conjunction with a single coat of Polar Bear, Cement Bear and/or Vapour Block. When used over wood substrates, Roller Bear is applied in conjunction with one coat of Polar Bear. Roller Bear can be used in two coats over all non-wood substrates.

Roller Bear is applied over the entire surface of the intended substrate by spray, brush, or roller. The first layer must be allowed to dry prior to the application of the second coat WRB.

Note: Some WRB products such as Polar Bear, Cement Bear and Vapour Block can be used as an adhesive and/or base coat.

Self-adhered modified bituminous membrane

SOPRASEAL STICK 1100 T is a self-adhered modified bituminous membrane consisting of a styrene-butadiene-styrene (SBS) rubberized asphalt compound, which is integrally laminated to a woven polyethylene film on one side and has a silicone-treated release backing on the reverse side. The membrane has a minimum thickness of 1 mm. SOPRASEAL STICK 1100 T or equivalent must meet the waterproof characteristics of CGSB 37-GP-56M-85, “Membrane, Modified, Bituminous, Prefabricated, and Reinforced for Roofing.”

Adhesive

• Polar Bear – see description in Trowel-Applied Coatings
• Cement Bear – see description in Trowel-Applied Coatings
• Prep Coat is a ready-to-use, polymer-based, wet paste adhesive supplied in 19-L/30-kg pails and mixed on-site with Type 10 Portland cement (1:1 cement by weight). Workability may be adjusted by the addition of clean, potable water as specified by the manufacturer.
• Prep Coat D is a ready-to-use, polymer-based adhesive supplied in 22.7-kg powder bags. The material is mixed on-site with clean, potable water (3.8:1 by weight of dry mix to water).

When used as an adhesive in the InsulROCK EIFS, Cement Bear, Prep Coat or Prep Coat D are applied with a 9.5-mm, stainless steel, notched trowel, held at a 30º angle and rendered in such a way as to align the adhesive in vertical ribbons.

When used as an adhesive in the PUCCS System, Cement Bear, Prep Coat or Prep Coat D can be applied either in a continuous layer over the substrate to achieve a minimum thickness of 1.0 mm or applied with a 9.5-mm, stainless steel, notched trowel, held at a 30º angle, and rendered in such a way as to align the adhesive in vertical ribbons.

Note: Adhesives are used for bonding the insulation to the substrate coated with the WRB. They are, in general, available in the following forms: a dry powder mix requiring the addition of water and/or cement on site, or a wet paste that does not require any additives. Certain adhesives are also used as base coats, as in the case of Prep Coat and Prep Coat D. Consequently, the description of Prep Coat and Prep Coat D has been placed in this section.

Mechanical fasteners

DuROCK Mechanical Fasteners, to be used with self-adhered modified bituminous membrane as the WRB, consist of a corrosion-resistant anchoring screw and low-profile, high-density polypropylene washers (Wind-Lock/Wind-Devil 2) that are used to secure the insulation. The spacing and frequency of the fasteners will vary depending on the type of substrate. The outside face of the low-profile plastic washer should always be flush with the outside face of the tongue of the expanded polystyrene (EPS) insulation board. Fastening of the insulation boards to the substrate should precede the application of the reinforcing mesh.

PUCCS NC Mechanical Fasteners consist of a corrosion-resistant anchoring screw and low-profile, high-density polypropylene washers (Windlock ULP-302) that are used to secure the DuROCK PUCC-ROCK geometrically defined drainage cavity (GDDC) mineral fibre insulation. Please see “DuROCK PUCCS NC, Non-Combustible Cladding Exterior Insulation Finish System (EIFS),” Manufacturer’s Specification 07 24 40, September 2019, for the installation instructions for DuROCK PUCCS N Fasteners.

Insulation

EPS insulation

• DuROCK Insulation Board and DuROCK PUCCS Insulation Board are Type 1 or Type 2 polystyrene-foam insulation boards made of 100% virgin materials and manufactured and packaged by a DuROCK-approved and -licensed manufacturer/moulder. The insulation boards are aged in ambient air for a minimum of five weeks or kiln-dried.
• DuROCK Insulation Board is a typical flat EPS board.
• DuROCK PUCCS Insulation Board has drainage pathways cut into the insulation in a series of circles, 86 mm in diameter, 10 mm deep and 16 mm apart (see Figure 1).

The two polystyrene insulation boards must conform to the following:

• CAN/ULC-S701-11, “Thermal Insulation, Polystyrene, Boards and Pipe Covering,” Type 1 or Type 2,
• minimum board thickness: 25 mm when using DuROCK Insulation Board,
• minimum board thickness: 38 mm when using DuROCK PUCCS Insulation Board or the Uni-Track starter strip in conjunction with DuROCK Insulation Board,
• maximum board thickness:
  • as designed when used in combustible construction, and
  • 127 mm when used in noncombustible construction,
• maximum board size: 600 mm × 1 219 mm,
• average density: 16 kg/m³ for Type 1 and 24 kg/m³ for Type 2, and
• flame-spread rating: 25 - 500, per CAN/ULC-S102.2-10, “Test for Surface Burning Characteristics of Flooring, Floor Coverings, and Miscellaneous Materials and Assemblies.”

Mineral fibre insulation

DuROCK PUCC-ROCK is a Type 1 mineral fibre insulation board manufactured and packaged for DuROCK Alfacing International Limited by an approved manufacturer. DuROCK PUCC-ROCK Insulation Board is available in 51 mm, 76 mm, 102 mm, 127 mm, and 152 mm thicknesses. DuROCK PUCC-ROCK Insulation Board incorporates a GDDC on the back side that is 10 mm deep and 37% open. DuROCK PUCC-ROCK Insulation Board includes an integral alkali-resistant fibreglass mesh on the front side.

Mineral fibre insulation boards shall conform to the following:

• CAN/ULC-S702.1-14;
• having a minimum flat board thickness of 51 mm;
• having a maximum board thickness of 152 mm;
• having a maximum board size of 610 mm × 1 219 mm; and
• having an average density of 131 kg/m³.

Synthetic coating system (lamina)

The synthetic coating system (lamina) consists of the base coat, reinforcing mesh (embedded within the base coat), a primer and a finish coat.

Base coat

• Prep Coat – see description in Adhesive
• Prep Coat D – see description in Adhesive
• Jewel Stone is a two-component base coat consisting of a dry-mix cementitious powder supplied in 22.7-kg bags and a wet mix polymeric admixture supplied in 19-L/19-kg pails. The material is mixed in a ratio of 4.5:1 (dry mix to wet mix) by weight.

When used as a base coat, Prep Coat, Prep Coat D and Jewel Stone are applied with a stainless steel trowel to the entire surface of the insulation to a uniform dry thickness of not less than 2.0 mm.

Note: The thickness of the base coat required depends on the number of layers and the type of reinforcing mesh used. The base coat needs to be thicker when more than one layer of reinforcing mesh is incorporated into the lamina. Ultimately, the base coat must be sufficiently thick to fully embed the DuROCK Fibre Mesh so that no mesh is visible.

Reinforcing mesh

DuROCK Fibre Mesh is an alkali-resistant, glass-fibre reinforcing fabric that has a minimum nominal weight of:

• 165 g/m² (4.9 oz./yd² ) when using reinforcing fabric manufactured by Gavazzi S.A., and
• 140 g/m² (4.2 oz./yd² ) or greater when using products manufactured by Saint-Gobain ADFORS.

The mesh is white and available in rolls 1 m wide × 44 m long in the case of Gavazzi S.A. rolls, and 965 mm, 241 mm, or 318 mm wide × 45.7 m long in the case of the Saint-Gobain ADFORS rolls.

The reinforcing mesh is available in five different grades, represented in descending order of strength:

1. 15 oz Impact Mesh: minimum 522 g/m² ,
2. 11 oz Reinforcing Mesh: minimum 370 g/m² ,
3. 5.2 oz Reinforcing Mesh: minimum: 174 g/m² ,
4. 5.0 oz Reinforcing Mesh: minimum: 165 g/m² , and
5. 4.2 oz Reinforcing Mesh: minimum 140 g/m².

Note: Higher-grade meshes are intended to be used in areas requiring high impact resistance. All five grades of DuROCK Fibre Mesh may be used in conjunction with the two proposed systems.

Primer

Base Primer is a water-based pigmented acrylic primer that provides a uniformly absorbent surface for selected DuROCK exterior finishes. The primer is supplied in 19-L/30-kg ready-mix pails. It is applied using a roller/brush or sprayed uniformly over the base coats.

Note: Primer is required for spray- or roller-applied finishes.

Finish coat

• DuROCK Finish is a ready-mix polymer-based finish coat that is supplied in 19-L/30-kg pails. It is factory-tinted to the desired colour.
• The finish coats provide a texture that is governed by the aggregate size as well as the trowel motion used to render the wall surface. The following represents the different textures offered and their respective coating thickness:
  • Airless (0.25 mm),
  • Coarse Coat (2.0 mm),
  • Desert Sand (0.75 mm),
  • Fine Coat (0.75 mm),
  • Grain (2.0 mm),
  • Marble Coat (1.25 mm),
  • Max Coat (1.5 mm),
  • Pebble Coat (0.75 mm),
  • Pebble Rock (1.5 mm),
  • Roll On (0.50 mm),
  • Sand Coat (1.0 mm),
  • Spacco (2.0 mm),
  • Spray (2.0 mm),
  • Tricol (0.75 mm), and
  • Venetian (1.25 mm).
    
    Grain, Pebble Rock, Max Coat and Venetian produce an open-textured pattern in a regular or random style. Marble Coat, Sand Coat, Pebble Coat, Fine Coat, Desert Sand and Tricol produce a rough, pebbly texture, while Coarse Coat and Spacco are used to achieve any desired trowel texture. The texture of the Spray finish is governed by the spray-gun orifice and air compressor settings. Airless and Roll On are either roller- or spray-applied and finished to a flat coarse surface.

• Gemstone is a ready-mix polymer-based finish coat that consists of coloured quartz aggregates in a clear polymeric resin that can include metallic flakes for architectural purposes. Gemstone is supplied in 19-L/27-kg pails and available in an array of factory-tinted colours.

Manufacturing plants

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

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 product is intended for use as an exterior wall cladding on buildings falling under the scope of Parts 5 and 9 of the NBC 2015.
• When used in existing buildings, the applicable or the relevant elements of the existing buildings must comply with the requirements of the NBC 2015.
• The products are intended for use as exterior insulation and finish systems (EIFS) applied directly to vertical walls of brick, masonry, monolithic concrete walls, and/or cementitious, glass-mat-surfaced gypsum, plywood or OSB sheathing boards installed over wood or steel framing.
• The product must be installed according to the manufacturer’s installation manuals or specifications listed below^{Footnote (1)} by a trained applicator authorized by the manufacturer.
• Gaps between the sheathing boards installed horizontally over on framed walls must not exceed 3.0 mm.
• The products are acceptable for use on vertical walls. The systems are not acceptable for use on horizontal surfaces. (Note: The present limitation doesn’t include protected soffit applications.)
• When the systems are part of a prefabricated panel system that incorporates structural components, the prefabricated panel system must be designed and plant-inspected by a professional engineer or architect in accordance with the manufacturer’s criteria and the requirements of the NBC 2010 and 2015.
• The products are not suitable for use as a structural sheathing for bracing purposes.
• The products are not intended for use as below-grade insulation and should terminate at least 200 mm above grade level.
• When used in coastal areas on residential occupancies that fall under the scope of Part 9 of Division B of the NBC 2015, the products must be installed in conjunction with a capillary break conforming to Clause 9.27.2.2.(1)(e), Minimum Protection from Precipitation Ingress, of Division B of the NBC 2015. Coastal areas are defined in Sentence 9.27.2.2.(5) of Division B of the NBC 2015.
• WRBs that are coatings must be applied in two coats.
• The use of the systems with the adhesives indicated in the “InsulROCK EIFS” table and the “PUCCS EIFS” table are limited to geographical areas where the wind design value is Q₅₀ ≤ 1.00 kPa.
• The PUCCS NC EIFS indicated in the “PUCCS EIFS” table is limited to geographical areas where the wind design value is Q₅₀ ≤ 1.00 kPa (maximum PUCCS NC mechanical fastener spacing is 406 mm horizontally and 305 mm vertically).
• When the products have a self-adhered modified bituminous membrane, their use is limited to geographical areas where the wind design value is Q₅₀ < 0.75 kPa.^{Footnote (2)} When used in locations where wind load resistance is required, the wind load resistance must be calculated based on test results that would have been conducted in accordance with CCMC’s Technical Guide MasterFormat No. 07 24 13.01. (See the Results of Testing of Impact Resistance (PUCCS NC) table of this Report.)
• When used on existing walls of sprinklered buildings or existing walls of the buildings with not more than 3 storeys, the possibility of moisture accumulation within the wall construction is mainly a function of 1) the ability of the wall assembly to deflect bulk water entry, and 2) the physical properties of the cladding being installed and its impact on the thermal, air leakage and vapour diffusion characteristics of the existing wall. The potential for moisture accumulation as a result of the addition of materials is very specific to the existing wall construction. Therefore, the installation must be in accordance with Appendix Note A-5.1.2.1(1), Application (Environmental Separation), of Division B of the NBC 2015.
• The continuity of the second plane of protection across joints and junctions at openings, penetrations and expansion joints must be maintained through accessories such as self-adhering membranes, tapes, etc., as specified by the manufacturer, prior to the installation of these systems.
• The design of the inboard/outboard insulation of the products must be in accordance with the requirements of Section 9.25., Heat Transfer, Air Leakage and Condensation Control, of Division B of the NBC 2015.
• When the systems are used on existing walls, adding thermal insulation to existing exterior walls will increase the thermal efficiency and airtightness of the wall. Deficiencies in flashing and other elements in the building assembly, including mechanical systems, may result in the detrimental effects of moisture accumulation highlighted in Appendix Note A-9.25.2.4.(3), Loose-Fill Insulation in Existing Wood-Frame Walls, of Division B of the NBC 2015. As a result, once the EIFS (the product evaluated in this report) is installed, the existing exterior walls must meet the requirements of the NBC 2015 for heat transfer, air leakage and condensation control.
• The products can provide additional thermal insulation to the wall assembly with no detrimental effects if properly installed with knowledge of the existing wall configuration and performance.
• The products alone may not provide the full amount of the required wall insulation. The thermal resistance of the wall system must conform to the energy requirements of the applicable building code. The wall system may have to conform to the National Energy Code of Canada for Buildings 2015 as a minimum to meet Canada Mortgage and Housing Corporation (CMHC) technical requirements.
• The polystyrene thermal insulation must be in conformance with the requirements of CAN/ULC-S701-11.
• The polystyrene thermal insulation must be aged for a minimum of five weeks or kiln-dried before installation.
• The mineral fibre thermal insulation must be in conformance with the requirements of CAN/ULC-S702.1-14.
• Where allowed by the Code through conformance to Article 3.1.5.5., Combustible Cladding on Exterior Walls, of Division B of the NBC 2015, the two systems having Polar Bear, Cement Bear and Vapour Block as the WRB, Polar Bear, Cement Bear, Prep Coat and Prep Coat D as the adhesive, DuROCK Insulation Board and DuROCK PUCCS Insulation Board as the Type 1 or Type 2 EPS, up to 127 mm thick, Prep Coat, Prep Coat D as the base coat, DuROCK Finish as the finish coat, DuROCK Fibre Mesh having a minimum weight of 150 g/m² and 100-mm mesh overlap, are acceptable for use in buildings required to be of noncombustible construction that are not more than three storeys in height if not sprinklered, and to an unlimited number of storeys in height if sprinklered. For a detailed description of the compliance of the related systems to the requirements of Article 3.1.5.5. of Division B of the NBC 2015, please refer to Intertek Listing Information of DuROCK PUCCS and InsulROCK EIFS, SPEC ID: 18050 and Design No. DAI/WDEIFS 30-01.
• Where allowed by the Code through conformance to Clause 3.2.3.8.(1)(b) of Division B of the NBC 2015, the two systems having Polar Bear, Cement Bear and Vapour Block as the WRB, Polar Bear, Cement Bear, and Prep Coat as the adhesives, Prep Coat and Prep Coat D as the base coat, DuROCK Insulation Board and DuROCK PUCCS Insulation Board as the Type 1 or Type 2 EPS, up to 152 mm thick, DuROCK Fibre Mesh having a minimum weight of 150 g/m² and a 100-mm mesh overlap, and DuROCK Finish as the finish coat are acceptable for use in the exposed face of buildings required to be of noncombustible construction. For a detailed description of the compliance of the related systems to the requirements of Clause 3.2.3.8.(1)(b) of Division B of the NBC 2015, please refer to Intertek Listing Information of “DuROCK PUCCS and InsulROCK EIFS,” SPEC ID: 18050 and Design No. DAI/WDEIFS 15-01.
• When used in noncombustible construction, the polystyrene insulation must be protected from the inside of the building in accordance with the applicable sentences of Article 3.1.5.15., Foamed Plastic Insulation, of Division B of the NBC 2015.
• When used in combustible construction, the polystyrene insulation must be protected from the inside of the building in accordance with Clauses 3.1.4.2.(1)(c), Protection of Foamed Plastics, and 9.10.17.10.(1)(c), Protection of Foamed Plastics, of Division B of the NBC 2015.
• The systems should be kept at least 50 mm, or as required in building regulations and safety codes, from heat-emitting devices, such as recessed light fixtures and chimneys.
• The requirements of the NBC 2015 regarding fire stops must be implemented.
• The polystyrene thermal insulation must have a flame-spread rating of not more than 500 when tested in accordance with the requirements of CAN/ULC-S102.2-10.
• Expansion/movement joints must be carried through the cladding. The joints are required to accommodate expansion and contraction of building materials due to thermal changes, moisture, wind, gravity, vibration and seismic activity. Expansion/movement joints must be used in the following situations:
  • at joints that occur in the substrate,
  • at any abutment of the system with other materials,
  • where the substrate changes,
  • where significant structural movement occurs,
  • where deflections in excess of L/240 are expected, and
  • at the floor line in wood-frame construction (may not be required when using engineered wood beams).
• Closed-cell backer rods should be used at expansion/movement joints so that the low-modulus sealant may be installed as per the sealant manufacturer’s instructions.
• The products must be installed according to DuROCK Alfacing International Limited’s installation manuals referenced in this Report^{Footnote (1)} by applicators authorized by the manufacturer.
• Wet materials must be applied at temperatures above 4°C and maintained above 4°C for a period not less than 24 hours. The substrate must be maintained above 4°C for a period not less than 24 hours. Cool and humid climatic conditions may extend drying time beyond 24 hours. Temporary protection and heat must be provided during colder conditions. Materials must be stored at temperatures between 4°C and 40°C. Previously frozen materials must not be used.
• Wet, finished surfaces must be protected from rain and wind-driven moisture until the materials have set and hardened.
• The products must be installed with suitable flashing to drain any incidental water from the drainage cavity to the exterior and to protect the exposed top edge of the cladding. Cap flashing must be installed immediately after completion of the finish coat or temporary protection must be provided.
• Glass mat gypsum sheathing must be in compliance with the requirements of ASTM C 1177/C 1177M-13, “Glass Mat Gypsum Substrate for Use as Sheathing,” or must have been evaluated by the CCMC.
• Specification of surface sealers must be provided by the manufacturer.
• When Roller Bear and FRI Bear are used in conjunction with panel type substrates, the joints between the different panels must be treated with Polar Bear or Cement Bear prior to the installation of the said WRBs.
• Roller Bear and FRI Bear are intended to be used in conjunction with one coat of Polar Bear when used over wood substrates and in conjunction with Polar Bear or Cement Bear when used on all other substrates. Roller Bear and FRI Bear are not intended to be used in conjunction with each other. Roller Bear used in two coats could be used on all substrate applications other than wood.
• For wood substrate applications, Polar Bear is trowel-applied into panel joints prior to the application over the field of the wall and/or prior to the application of Roller Bear or FRI Bear.
• OSB and/or plywood sheathing boards used in conjunction with the products must comply with the requirements of CSA O86-14, “Engineering Design in Wood.” In addition, the OSB must comply with CSA O325-07 (R2012), “Construction Sheathing,” while plywood must comply with CSA O121-08, “Douglas Fir Plywood,” CSA O151-09, “Canadian Softwood Plywood” and CSA O153-13, “Poplar Plywood.”
• The OSB and/or plywood sheathing boards must have a minimum thickness of 11.1 mm and 12.7 mm, respectively. The boards must have their principal strength-direction across the studs, must be continuously supported by framing, and must be gapped at least 2.0 mm and not more than 3.0 mm.
• OSB and/or plywood sheathing boards used in conjunction with the products must be fastened to the framing in conformance with Article 9.23.3.5., Fasteners for Sheathing or Subflooring, of Division B of the NBC 2015.
• The products intended for use over wood shall have the moisture content of lumber and/or wood sheathing not greater than 19% at the time of the application of the water-resistive barrier.
• The drained airspace behind the insulation board shall remain unobstructed so as to form a clear drainage cavity behind the insulation boards and it shall terminate in such a way as not to obstruct the dissipation of incidental rainwater to the exterior.

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

Applications over wood substrates (Plywood/OSB)