[CCMC 13103-R] CCMC Canadian code compliance evaluation

The products use the following coatings as a WRB:

Trowel-spray or brush- or roller-applied coatings

Durex Flexcrete is a ready-to-use, polymer-based, wet mix coating supplied in 30-kg pails. It is mixed on site with Durex Flexcrete B cement, which is supplied in 22.7-kg bags [1:1 by unit (one bag to one pail)]. Durex Flexcrete is applied in a continuous layer over the substrate to achieve a minimum wet thickness of 1.5 mm to 3.0 mm.

Durex Green Guard is a ready-to-use, polymer-based (100% synthetic) coating supplied in 25-kg pails. It is applied in a continuous layer over the substrate to achieve a minimum wet thickness of 2.3 mm.

Durex Blue Shield is a ready-to-use, polymer-based (100% synthetic) coating supplied in 25-kg pails. It is applied in a continuous layer over the substrate to achieve a minimum wet thickness of 2.3 mm.

Durex Dur-A-Mastic 100 is a ready-to-use, polymer-based (100% synthetic) coating supplied in 25-kg pails. It is applied in a continuous layer over the substrate to achieve a minimum wet thickness varying between 1.5 mm to 2.5 mm.

Durex Ectoflex is a 2-component, flexible, polymer-based cementitious coating consisting of a ready-to-use, polymer-based, wet mix coating supplied in 10-L pails. It is mixed on site with Durex Ectoflex B cement, which is supplied in 22.7-kg bags [1:1 by unit (1 bag to 1 pail)]. Durex Ectoflex is light grey in colour when fully cured. It is applied in a continuous layer over the substrate to achieve a minimum wet thickness of 1.5 mm to 3.0 mm.

Roller-applied WRB coatings

Durex AirStop is a ready-to-use, polymer-based (100% synthetic) coating supplied in 25-kg pails. It is applied in a continuous layer over the substrate via trowel or roller application.

Joint, rough openings and penetration treatments

Durex Joint Guard is a ready-to-use, polymer-based (100% synthetic) coating supplied in 25-kg pails. It is intended to be used in conjunction with an application of Durex Barrier Seam Tape, a 100-mm wide, alkali-resistant glass-fibre mesh that is applied over all joints in the sheathing and embedded into the Durex Joint Guard while still wet.

Note: Durex Joint Guard could be replaced with Durex Green Guard as a joint treatment in conjunction with Durex Barrier Seam Tape. See description of Durex Green Guard in the Trowel-spray or brush- or roller-applied coatings section.

Durex EIFS Tape is a 100–450-mm, self-adhering, rubberized flashing tape with skrim facing that wraps around rough openings and penetrations.

Durex Primerless EIFS Tape is a 100–450-mm, self-adhering, high-performance polyester tape that wraps around rough openings and penetrations.

Note: Durex Flexcrete, Durex Green Guard, Durex Blue Shield, Durex Dur-A-Mastic 100, Durex Ectoflex or Durex AirStop WRBs is applied in combination with Durex EIFS Tape or Durex Primerless EIFS Tape around rough openings and penetrations.

Note: In WRB applications over sheathing, all joints are to be treated prior to WRB application with a 100-mm-wide coating of Durex Joint Guard across the joint followed by an application of Durex Barrier Seam Tape. Where the sheathing joints occur in locations that are designed to accommodate deflections and/or movements and/or dissimilar substrates, Durex Barrier Seam Tape is replaced by Durex EIFS Tape/Durex Primerless EIFS Tape, lapping each side of the joint by not less than 50 mm.

Self-adhered modified bituminous membrane

Durex FlexSeal Membrane is a self-adhered modified bituminous membrane consisting of a styrene-butadiene-styrene (SBS) rubberized asphalt compound that is integrally laminated to a woven polyethylene film on one side with a silicone-treated release backing on the reverse side. The membrane has a minimum thickness of 1 mm.

Note: When a self-adhered modified bituminous membrane is used continuously over the field of the wall, no additional joint treatment is required. 

Durex Flexcrete—See description of Durex Flexcrete in the Trowel-spray or brush- or roller-applied coatings section.

Durex Monobase is a polymer-modified adhesive and base coat supplied in 22.7-kg dry bags and mixed on site with clean potable water (4:1 by weight, dry mix to water).

Durex VCA 3.0 is a ready-to-use, polymer-based, wet mix adhesive supplied in 30-kg pails and mixed on site with Durex VCA 3.0 B cement, which is supplied in 22.7-kg bags [1:1 by unit (one bag to one pail)].

Durex Flexcrete, Durex Monobase and Durex VCA 3.0 adhesives are applied in a continuous layer over EPS/XPS insulation boards using a stainless steel U-shaped notched trowel and rendered in such a way as to align the adhesive in vertical ribbons. The spacing between the ribbons must range from 38–50 mm, while the size of the notches must be 10–13 mm in width and 10–13 mm in depth. 

Durex Mechanical Fasteners consist of a corrosion-resistant anchoring screw, incorporating a low-profile, high-density polyethylene washer (Durex WDP Plate/Durex ULP Plate) that is used to secure the insulation. The type, spacing and frequency of the fasteners will vary depending on the type of substrate and the thickness of the insulation board. The outside face of the low-profile plastic washer should always be flush with the outside face of the EPS or mineral wool insulation board.

Durex ULP Plate consists of a flat, low-profile, high-density polyethylene washer to be used in conjunction with Durex Equalite MW Insulation and Durex Equalite Select MW Insulation mineral wool insulation board.

Durex WDP Plate consists of a high-density, polyethylene washer comprised of a flat surface with a fluted protrusion on the underside of the plate to be used in conjunction with Durex Flexlite Select MF, Durex Insulite Select MF, and Durex Quantum Select MF EPS insulation boards.

Expanded polystyrene (EPS)

Durex EPS is a typical Type 1 or Type 2 flat EPS board.

Durex XPS is a typical Type 4 flat extruded EPS board.

Durex Flexlite Select EPS⁽⁵⁾ is a geometrically defined drainage cavity (GDDC) Type 1 or Type 2 EPS board, featuring vertical dovetail grooves at the back of the insulation board to allow for pressure equalization and drainage of incidental moisture that may reach the substrate-insulation interface.

Durex Quantum Select EPS is a geometrically defined drainage cavity (GDDC) Type 1 or Type 2 EPS board featuring vertically defined drainage channels that are 10-mm deep, 50-mm wide and 51-mm apart to allow for pressure equalization and for drainage of incidental moisture that may reach the substrate-insulation interface. (See Figure 1)

Durex Insulite Select Graphite EPS is a geometrically defined drainage cavity (GDDC) Type 1 or Type 2 EPS board infused with graphite and featuring vertical dovetail grooves at the back of the insulation board to allow for pressure equalization and for drainage of incidental moisture that may reach the substrate-insulation interface.

Durex Quantum Select 5.0 EPS is a geometrically defined drainage cavity (GDDC), as noted above in Durex Quantum Select EPS, with the exception that it is a Type 3 EPS board. Durex Quantum Select 5.0 EPS is also available as a Type 1 or Type 2 EPS board infused with graphite in the same geometrically defined drainage cavity (GDDC) design as noted above in Durex Quantum Select EPS.

Durex EPS Durex Flexlite Select/Durex Insulite Select Graphite/Durex Quantum Select EPS/Durex Quantum Select 5.0 EPS are made from 100% virgin materials and manufactured and packaged by a Durabond Products Ltd.-approved and licensed manufacturer/molder. The insulation boards are aged in ambient air for a minimum of 5 weeks or kiln-dried. See Figure 2 and Figure 3 for Durex Flexlite Select and Durex Insulite Select Graphite EPS.

Durex EPS/Durex XPS/Durex Flexlite Select EPS/Durex Quantum Select EPS/Durex Quantum Select 5.0 EPS/Durex Insulite Select Graphite EPS insulation boards must conform to the following:

• CAN/ULC-S701⁽⁶⁾, Type 1, in the case of Durex EPS/Durex Flexlite Select EPS/Durex Quantum Select EPS/Durex Insulite Select EPS
• CAN/ULC-S701, Type 3, in the case of Durex Quantum Select 5.0 EPS
• CAN/ULC-S701, Type 4, in the case of Durex XPS
• Minimum board thickness of 38 mm, when using Durex Flexlite Select EPS, Durex Insulite Select Graphite EPS, Durex Quantum Select EPS or Durex Quantum Select 5.0 EPS
• Minimum board thickness of 25 mm when using Durex EPS or Durex XPS
• Maximum board thickness:
  • as designed, when used in combustible construction,
  • 110 mm, for the system defined in ULC Listing FWFO7. EW17, when used in noncombustible construction in accordance with Clause 3.2.3.8.(1)(b) of Division B of the NBC 2015,
  • 150 mm for the systems defined in ULC Listings FWFO7.EW21 and FWFO7. EW22, and when used in noncombustible construction in accordance with Clause 3.2.3.8.(1)(b) of Division B of the NBC 2015, and
  • 152 mm for the systems defined in Intertek Listing Information of Quantum Select, SPEC ID: 29367 and Design Listing: DPL-WEIFS 30-01, and when used in noncombustible construction in accordance with Article 3.1.5.5., Combustible Cladding on Exterior Walls, of Division B of the NBC 2015.
• Maximum board size is 610 mm × 1 219 mm for Durex EPS/Durex Flexlite Select EPS/Durex Quantum Select EPS/Durex Quantum Select 5.0 EPS/Durex Insulite Select Graphite EPS
• Maximum board size is 600 mm × 2 440 mm for Durex XPS
• Average density of 16 kg/m³ for Durex EPS/Durex Flexlite Select EPS/Durex Quantum Select EPS/Durex Insulite Select EPS utilizing Type 1 EPS
• Average density of 22 kg/m³ for Durex EPS/Durex Quantum EPS/Durex Select EPS/Durex Insulite Select EPS utilizing Type 2 EPS
• Average density of 32 kg/m³ for Durex Quantum Select 5.0 EPS
• Average density of 25 kg/m³ for Durex XPS
• Flame-spread rating of 25–500, as per CAN/ULC-S102.2-10, “Test for Surface Burning Characteristics of Building Materials and Assemblies.”

Mineral wool

Durex Equalite MW Insulation is a mineral wool fibre insulation made from rock and basalt rock and slag, and manufactured and packaged for Durabond Products Ltd. by an approved manufacturer.

Durex Equalite Select MW Insulation is a geometrically defined drainage cavity (GDDC) mineral wool fibre insulation board featuring vertically defined drainage channels that are 10-mm deep, 50-mm wide and 250-mm apart to allow for pressure equalization and for drainage of incidental moisture that may reach the substrate-insulation interface.

The insulation boards must be CCMC-evaluated or certified and conform to the following:

• CAN/ULC-S702
• Minimum flat board thickness of 50 mm
• Maximum board thickness of 150 mm
• Maximum board size of 600 mm × 1 219 mm
• Average density of 128 kg/m³

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

Base coat^{Table footnote (7)}

Durex Flexcrete—See description in the Adhesives section. When used as a base coat, Durex Flexcrete is applied in a continuous layer over the entire surface of the EPS insulation boards to a uniform dry thickness not less than 1.6 mm using a stainless steel trowel.

Durex Monobase—See description in the Adhesives section. When used as a base coat, Durex Monobase is applied in a continuous layer over the entire surface of the EPS insulation boards to a uniform dry thickness not less than 1.6 mm using a stainless steel trowel.

Durex Monobase NC is a polymer-modified adhesive and base coat supplied in 22.7-kg dry bags and mixed on site with clean potable water (4:1 by weight, dry mix to water). Durex Monobase NC is noncombustible, conforming to the requirements of CAN/ULC-S114-05, “Test for Determination of Non-Combustibility in Building Materials.” When used as a base coat, Durex Monobase NC is applied in a continuous layer over the entire surface of the EPS/mineral wool insulation boards to a uniform dry thickness not less than 1.6 mm using a stainless steel trowel.

Durex Uniplast is a polymer-modified base coat supplied in 22.7-kg dry bags. It is mixed with Durex Acrybond S, a water-based 100% acrylic polymer cement additive (4:1 by weight, dry mix to Durex Acrybond S). Durex Uniplast is noncombustible, conforming to the requirements of CAN/ULC-S114-05. It is applied with a stainless steel trowel to the entire surface of the EPS/XPS/mineral wool insulation to a uniform dry thickness not less than 1.6 mm per coat.

Reinforcing mesh

Reinforcing mesh is an alkali-resistant, glass-fibre reinforcing fabric that has a minimum nominal weight of 155 g/m² when using reinforcing fabric manufactured by Gavazzi S.A., and 142.5 g/m² or greater when using products manufactured by ADFORS Saint-Gobain. The mesh is white in colour and is available in rolls that are 965-mm, 241-mm and 318-mm wide, and 45.7-m long.

The reinforcing mesh is available in 5 different grades^{Table footnote (8)}, represented in descending order of strength:

• Durex Extreme Impact Resistant Mesh (21.0 oz) (high impact), minimum 694 g/m²;
• Durex Ultra Impact Mesh (15.0 oz) (high impact), minimum 508 g/m²;
• Durex High Impact Mesh (11.0 oz) (intermediate impact), minimum 349 g/m²;
• Durex Intermediate Impact Mesh (6.0 oz) (intermediate impact), minimum 190 g/m²;
• Durex Standard Plus Mesh (5.0 oz) (standard mesh), minimum 160.0 g/m²; and
• Durex Standard Mesh (4.3 oz) (standard mesh), minimum 142.5 g/m².

Primer

Durex Brush Coat is a ready-mix, water-based, pigmented acrylic primer that provides a uniformly absorbent surface for Durex Architectural Coatings, Durex Architectural Coatings FX, Durex New Generation Series, and Durex Classic Series finish coats. Durex Brush Coat is supplied in 25-kg pails, mixed prior to use with a paddle mixer and electric drill, and applied using a roller/brush or sprayed uniformly over the Durex Flexcrete/Durex Monobase/Durex Monobase NC/Durex Uniplast base coats.

Durex Dur-X-Cell 100 is a ready-mix, water-based, pigmented acrylic primer that provides a uniformly absorbent surface for Durex Architectural Coatings FX, Durex New Generation Series, and Durex Classic Series finish coats. Durex Dur-X-Cell 100 is supplied in 25-kg pails, mixed prior to use with a paddle mixer and electric drill, and applied using a roller/brush or sprayed uniformly over the Durex Flexcrete/Durex Monobase/Durex Monobase NC/Durex Uniplast base coats.

Finish coat

Products in the Durex Architectural Coatings Series are ready-mix, factory-tinted, polymer-based finish coats supplied in 30-kg pails. 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:

• Graffiato (2.0 mm)
• Marble Coat (1.5 mm)
• Sandex (1.25 mm)
• Stucco Spray (1.25 mm)
• Super Stipple (1.0 mm)
• Marble Coat (1.0 mm)
• Marble Coat (1.8 mm)
• Venician (2.0 mm)
• Pebble Float (1.5 mm)
• Trim Spray (2.0 mm)

Products in the Durex Architectural Coatings FX Series are ready-mix, factory-tinted, polymer-based finish coats supplied in 30-kg pails. The finish coats provide a texture that is determined 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:

• Graffiato FX (2.0 mm)
• Marble Coat FX (1.5 mm)
• Sandex FX (1.25 mm)
• Stucco Spray FX (1.25 mm)
• Super Stipple FX (1.0 mm)
• Marble Coat (1.0 mm)
• Marble Coat FX (1.8 mm)
• Venician FX (2.0 mm)
• Pebble Float FX (1.5 mm)
• Trim Spray FX (2.0 mm)

Products in the Durex New Generation Series are ready-mix, factory-tinted, polymer-based finish coats supplied in 30-kg pails. 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:

• Gemstone
• Cromatex
• Crystal Coat
• Stonetex
• Granite
• Century Stone

Products in the Durex Classic Finish Series are ready-mix, factory-tinted polymer-based finish coats supplied in 30-kg pails. 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:

• Rasato
• Rustico
• Sandstone
• DecoGrain

Where allowed by the Code through conformance to Article 3.1.5.5. of Division B of the NBC 2015, the Durex Quantum Select system having Green Guard as the WRB, Flexcrete as the adhesive, Quantum Select EPS as the EPS Type 1 or Type 2 insulation boards, up to 152-mm-thick, Flexcrete or Uniplast Acrybond-S as the base coat, Architectural Coatings as the finish coat; Durex Standard Mesh having a minimum weight of 142.5 g/m² and 125-mm mesh overlap when using 152-mm-thick insulation, and 100-mm mesh overlap when using lesser thicknesses, are acceptable for use in buildings required to be of noncombustible construction that are not more than 3 storeys in height if not sprinklered, and 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 Quantum Select, SPEC ID: DPL-WEIFS 30-01 and Intertek Report Number 100432565COQ-004a, Revised date January 29 2013.

Where allowed by the Code through conformance to Clause 3.2.3.8.(1)(b) of Division B of the NBC 2015, Durex Flexlite Select, Durex Quantum Select, Durex Quantum Select ICF, Durex Insulite EW-17, Durex Insulite Select, and Durex Flexlite ADH are acceptable for use in the exposed face of buildings required to be of non-combustible construction, provided the interior surfaces of the wall assembly are protected by a thermal barrier conforming to Article 3.1.5.15. of Division B of the NBC 2015. For a detailed description of the compliance of Durex Flexlite Select, Durex Quantum Select, Durex Insulite EW-17, Durex Insulite Select, and Durex Flexlite ADH to the requirements of Clause 3.2.3.8.(1)(b) of Division B of the NBC 2015, please refer to ULC listings ULC FWFO7.EW17, ULC FWFO7.EW21 and ULC FWFO7.EW22, and Intertek report 12737641COQ-001 for further details on the combination of coatings/systems falling under the scope of the said listings.

Data presented in this section is beyond the CCMC’s opinion in the code compliance opinion section and is for information purposes only. Data published in this section has been extracted from Exova test report number 18-06-B0194 (dated March 19, 2019).

Air permeance tests in compliance with CAN/ULC-S741 have been performed on Durex AirStop weather-resistive barrier by an accredited testing agency. Results of the mentioned tests are listed below: