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[CCMC 13459-R] CCMC Canadian code compliance evaluation

In most jurisdictions this document is sufficient evidence for approval by Canadian authorities.

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Compliance opinion

It is the opinion of the Canadian Construction Materials Centre that the evaluated products, when used as a vapour barrier and a thermal insulation board installed in conjunction with a furred air space assembly in enclosed foundation walls in accordance with the conditions and limitations stated in this evaluation, comply with the following codes:

National Building Code of Canada 2015

ID Code provision Solution type
09-25-02-02-01-0-009.25.2.2.(1) Except as required in Sentence 9.25.2.2. ...Alternative
09-25-02-02-01-d-009.25.2.2.(1)(d) Insulation MaterialsAcceptable
09-25-04-02-01-0-009.25.4.2.(1) Vapour barriers shall have a permeance n ...Acceptable
09-25-04-02-04-0-009.25.4.2.(4) Membrane-type vapour barriers other than ...Alternative
09-25-04-03-00-0-009.25.4.3. Installation of Vapour BarriersAcceptable
09-36-02-02-04-b-009.36.2.2.(4)(b) Determination of Thermal Characteristics of Materials, Components and AssembliesAlternative
09-36-02-08-00-0-009.36.2.8. Thermal Characteristics of Building Assemblies Below-Grade or in Contact with the GroundAlternative

National Building Code of Canada 2020

ID Code provision Solution type
09-25-02-02-01-0-009.25.2.2.(1) Except as required in Sentence 9.25.2.2. ...Alternative
09-25-02-02-01-d-009.25.2.2.(1)(d) CAN/ULC-S701.1:2017 Standard for The ...Acceptable
09-25-04-02-01-0-009.25.4.2.(1) Except as provided in Sentence 9.25.4.2. ...Acceptable
09-25-04-02-05-0-009.25.4.2.(5) Membrane-type vapour barriers other than ...Alternative
09-25-04-03-00-0-009.25.4.3. Installation of Vapour BarriersAcceptable
09-36-02-02-04-b-009.36.2.2.(4)(b) laboratory tests performed in accordance ...Alternative
09-36-02-08-00-0-009.36.2.8. Thermal Characteristics of Building Assemblies Below-Grade or in Contact with the GroundAlternative

Ontario Building Code

Ruling No. 14-02-298 (13459-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 2014-09-22 (revised 2017-06-26) 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 names

  • EZfoil
  • ISOFOIL
  • PROfoil

Product description

The products consist of a 76.2-mm-thick, Type 1, moulded expanded polystyrene (EPS) insulation board (CCMC 12894-L), which is laminated on one side with a facer of aluminized kraft paper with low-emissivity (low-E) characteristics. The products are nailed to the interior side of a 203.2-mm-thick poured concrete foundation wall with its low-E material facing a furred air space assembly (i.e., air cavity, furring and gypsum board interior finish), and the joints of the products are sealed with 50-mm-wide aluminum tape. Five evaluated foundation wall configurations are presented in Figure 1, Figure 2, Figure 3, Figure 4 and Figure 5, including the wood furring size, installation orientation and spacing on centre (o.c.). 

Manufacturing plant

This evaluation is valid only for products produced at the following plant:

Product namesManufacturing plant
Sainte-Marie-de Beauce, QC, CA
EZfoilProduct evaluated by the CCMC
ISOFOILProduct evaluated by the CCMC
PROfoilProduct 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 evaluation applies to buildings that comply with Sentence 9.36.1.3.(2), Compliance and Application, of Division B of the NBC 2015 and 2020. 
  • The products are permitted for use in buildings that fall under the scope of Part 9, Housing and Small Buildings, of Division B of the NBC 2015 and 2020.
  • The products must be installed within the wall assemblies specified in Figure 1, Figure 2, Figure 3, Figure 4 and Figure 5.
  • The products must be installed in accordance with:
    • the manufacturer’s installation instructions; and
    • Part 9 of Division B of the NBC 2015 and 2020.
  • The aluminum foil surface of the products must be clean and free of defects.
  • The joints of the products must be sealed with 50-mm-wide aluminum tape.
  • The density of the concrete wall used in the full-scale test to determine the thermal resistance of the wall assembly is 2 400 kg/m3, which corresponds to the normal concrete density referenced in CSA A23.1-09, "Concrete materials and methods of concrete construction."
  • Table 5, Table 6, Table 7, Table 8 and Table 9 state two thermal resistance values per wall assembly:
    • the thermal resistance value of the wall, excluding the interior and exterior air films; and
    • the design thermal resistance value, which includes the standard air films.
  • These values are valid if there are no construction imperfections and there is no condensation in the cavity or dust on the surface of the aluminum foil.

Note: Should additional insulation material be added to the above-specified wall assemblies, testing or numerical modeling must be conducted to accurately assess the overall thermal resistance of the modified wall assembly. The thermal resistance provided by the additional insulation cannot be added algebraically to the published thermal resistance of the wall assembly.

  • The wall assemblies specified in Figure 1, Figure 2, Figure 3, Figure 4 and Figure 5 must meet the requirements for air barriers stated in Subsection 9.25.3., Air Barrier Systems, of Division B of the NBC 2015 and 2020. The products must be installed in conjunction with the Isolofoam Group Inc. proprietary air barrier system, which must be approved by the building official or evaluated by the CCMC.
  • The furred air space assembly must be enclosed by a 12.7-mm-thick gypsum board interior finish conforming to Subsection 9.29.5., Gypsum Board Finish (Taped Joints), of Division B of the NBC 2015 and 2020. The air space must also be sealed at the interior finish to prevent any air exchange between the furred air space and the interior space. Sealing of the air space at the perimeter of the wall, around outlets, etc., must be carried out in accordance with the manufacturer’s installation instructions.
  • All ends and edges of the gypsum board must occur over furring members or joints must be taped.
  • The heat transfer, vapour diffusion and air barrier control details between the floor joists at the rim board must meet the requirements of Section 9.25, Heat Transfer, Air Leakage and Condensation Control, of Division B of the NBC 2015 and 2020.
  • The concrete footing must be installed below the frost level in compliance with the requirements of the local jurisdiction.
  • Where applicable, the concealed spaces created by the furred air space assembly must include fire blocks complying with Subsection 9.10.16., Fire Blocks, of Division B of the NBC 2015 and 2020.
  • Product packaging must be identified with the manufacturer’s name or logo and the phrase "CCMC 13459-R."

  Technical information

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

Evaluation requirements
Criteria number Criteria name
CCMC-TG-072131.03-15CCMC Technical Guide for Foundation Wall System with Low Emissivity Material and Furred-Airspace Assembly
CCMC-TG-072131.03-20CCMC Technical Guide for Foundation Wall System with Low Emissivity Material and Furred-Airspace Assembly

The evaluation holder has submitted technical documentation for the CCMC’s evaluation. Modeling was conducted by experts recognized by the CCMC. The corresponding technical evidence for the products is summarized below.

Material requirements

The EZfoil, ISOFOIL and PROfoil thermal insulation board used within the wall assemblies shown in Figure 1, Figure 2, Figure 3, Figure 4 and Figure 5 conforms to CAN/ULC-S701.1:2017, "Standard for Thermal Insulation, Polystyrene, Boards and Pipe Covering," Type 1, as presented in Table 1 (see also CCMC 12894-L).

Table 1. Results of testing the material requirements of the insulation board (faced EPS) to CAN/ULC-S701.1:2017, Type 1
PropertyTable footnote (1) Unit Requirement Result
Thermal resistance of a 25 mm-thick-specimen (EPS only)Table footnote (2)  m2·K/W ≥ 0.65 Pass
Water vapour permeance for a 25-mm-thick specimen ng/(Pa·s·m2) ≤ 300 Pass
Dimensional stability % linear change ≤ 1.5 Pass
Flexural strength kPa ≥ 170 Pass
Water absorption % by volume ≤ 6.0 Pass
Compressive strength kPa ≥ 70 Pass
Limiting oxygen index % ≥ 24 Pass
 
Table 2. Results of testing the water vapour permeance of the insulation board (faced EPS), prior to and after aging
Property Unit Requirement Result
Water vapour permeance conforms to
ASTM E96/E96M-05 (desiccant method)Table 2. footnote (1)		 prior to aging ng/(Pa·s·m2) ≤ 60 4.23
after aging ng/(Pa·s·m2) ≤ 60 5.08
Table 3. Results of testing the material requirements of the low-E facer
Property Unit Requirement Result
Foil conforms to CAN/CGSB-51.33-M89Table 2. footnote (1) - Pass Pass: Type 2
Emissivity prior to aging - Report value 0.0375
after weathering and heat aging % Max. 5% higher than
original valueTable 2. footnote (2)		 Pass (0.0368)
Water vapour permeance conforms to
ASTM E96/E96M-05 (desiccant method)		 prior to aging ng/(Pa·s·m2) ≤ 60 1.0
after weathering and heat aging ng/(Pa·s·m2) ≤ 60 1.0
Adhesion strength (peel force) prior to aging N Report value 2.9
after weathering and heat aging % ≥ 85% of original value Pass (105.3 N/mm)
Performance requirements

Heat transfer control (EZfoil, ISOFOIL and PROfoil board with a furred air space assembly)

The effective thermal resistance of the manufacturer's designated wall assemblies 1, 2, 3, 4 and 5 shown in Figure 1, Figure 2, Figure 3, Figure 4 and Figure 5 was determined based on numerical heat transfer simulations using COMSOL Multiphysics® to demonstrate compliance with Section 9.36, Energy Efficiency, of Division B of the NBC 2015 and 2020.

Parameters used for the simulations (modeling)

Simulations were conducted using a room-side air temperature of 21±1°C and a weather-side air temperature of –18±1°C. These temperature parameters comply with the requirements of Section 9.36. of the NBC 2015 and 2020. The simulations used 0.0368 for the emissivity value of the facer (result after aging and weathering) and the measured temperature-dependent thermal conductivity of the EZfoil, ISOFOIL and PROfoil. The thermal conductivity was determined as a linear fit of thermal resistance versus temperature, based on testing in compliance with ASTM C518, "Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus," at mean temperatures of 24°C, 4°C, –4°C and –8°C.

Requirements of Article 9.36.2.8. of the NBC 2015 and 2020

For compliance with Article 9.36.2.8., Thermal Characteristics of Building Assemblies Below-Grade or in Contact with the Ground, of Division B of the NBC 2015 and 2020, the minimum effective thermal resistance values for foundation walls in buildings for climate locations with heating degree days (HDD) corresponding to Zone 4 (HDD < 3 000), Zone 5 (HDD between 3 000 and 3 999) and Zone 6 (HDD between 4 000 and 4 999) are presented in the table below. The minimum requirements apply for buildings with and without heat-recovery ventilators.

Table 4. Minimum effective thermal resistance requirements and performance – Article 9.36.2.8. of the NBC 2015 and 2020
Property Unit Requirements ResultTable footnote (1)Table footnote (2)
Zone 4 Zone 5 Zone 6
Minimum effective
thermal resistance
of wall assembly		 wall assembly 1 (Figure 1) (m2·K)/W 1.99 2.98 2.98 Pass
wall assembly 2 (Figure 2) Pass
wall assembly 3 (Figure 3) Pass
wall assembly 4 (Figure 4) Pass
wall assembly 5 (Figure 5) Pass

Table 5. Results of modeling the thermal resistance values for wall assembly 1
Property Unit Requirement Result
k1Table footnote (1) k2Table footnote (1)
Room-side air temperature °C Report value 21 21
Weather-side air temperature °C Report value –18 –18
Thermal resistance of the wallTable footnote (2)Table footnote (3) (m2·K)/W Report value 3.09 3.02
Design thermal resistance of the wallTable footnote (3)Table footnote (4) (m2·K)/W Table footnote (5) 3.24 3.17
furred air space assembly within wall assembly 1

Figure 1. Assembly 1- EZfoil, ISOFOIL and PROfoil adjacent to the furred air space assembly installed within wall assembly 1

  1. Concrete wall (200 mm thick)
  2. Aluminum tape (50 mm wide)
  3. EZfoil, ISOFOIL and PROfoil (76 mm thick) with low-emissivity material facing the furred air space
  4. Wood furring (19 mm × 64 mm) installed vertically at 610 mm o.c.
  5. Gypsum board (12.7 mm thick) installed vertically
Note: There is an air space of 19 mm between the polystyrene board (ISOFOIL, PROfoil and EZfoil) and the gypsum board.
Table 6. Results of modeling the thermal resistance values for wall assembly 2
Property Unit Requirement Result
k1Table footnote (1) k2Table footnote (1)
Room-side air temperature °C Report value 21 21
Weather-side air temperature °C Report value –18 –18
Thermal resistance of the wallTable footnote (2)Table footnote (3) (m2·K)/W Report value 3.03 2.96
Design thermal resistance of the wallTable footnote (3)Table footnote (4) (m2·K)/W Table footnote (5) 3.18 3.11
furred air space assembly within wall assembly 2

Figure 2. Assembly 2 - EZfoil, ISOFOIL and PROfoil adjacent to the furred air space assembly installed within wall assembly 2

  1. Concrete wall (200 mm thick)
  2. Aluminum tape (50 mm wide)
  3. ISOFOIL, PROfoil and EZfoil (76 mm thick) with low-emissivity material facing the furred air space
  4. Wood furring (19 mm × 64 mm) installed horizontally at 610 mm o.c.
  5. Gypsum board (12.7 mm thick) installed horizontally
Note: There is an air space of 19 mm between the polystyrene board (EZfoil, ISOFOIL and PROfoil) and the gypsum board.
Table 7. Results of modeling the thermal resistance values for wall assembly 3
Property Unit Requirement Result
k1Table footnote (1) k2Table footnote (1)
Room-side air temperature °C Report value 21 21
Weather-side air temperature °C Report value –18 –18
Thermal resistance of the wallTable footnote (2)Table footnote (3) (m2·K)/W Report value 3.05 2.98
Design thermal resistance of the wallTable footnote (3)Table footnote (4) (m2·K)/W Table footnote (5) 3.20 3.13
furred air space assembly within wall assembly 3

Figure 3. Assembly 3 - EZfoil, ISOFOIL and PROfoil adjacent to the furred air space assembly installed within wall assembly 3

  1. Concrete wall (200 mm thick)
  2. Aluminum tape (50 mm wide)
  3. EZfoil, ISOFOIL and PROfoil (76 mm thick) with low-emissivity material facing the furred air space
  4. Wood furring (19 mm × 64 mm) installed vertically at 406 mm o.c.
  5. Gypsum board (12.7 mm thick) installed horizontally
Note: There is an air space of 19 mm between the polystyrene board (EZfoil, ISOFOIL and PROfoil) and the gypsum board.
Table 8. Results of modeling the thermal resistance values for wall assembly 4
Property Unit Requirement Result
k1Table footnote (1) k2Table footnote (1)
Room-side air temperature °C Report value 21 21
Weather-side air temperature °C Report value –18 –18
Thermal resistance of the wallTable footnote (2)Table footnote (3) (m2·K)/W Report value 3.16 3.09
Design thermal resistance of the wallTable footnote (3)Table footnote (4) (m2·K)/W Table footnote (5) 3.31 3.24
furred air space assembly within wall assembly 4

Figure 4. Assembly 4 - EZfoil, ISOFOIL and PROfoil adjacent to the furred air space assembly installed within wall assembly 4

  1. Concrete wall (200 mm thick)
  2. Aluminum tape (50 mm wide)
  3. EZfoil, ISOFOIL and PROfoil (76 mm thick) with low-emissivity material facing the furred air space
  4. Wood structure (38 mm × 64 mm) installed vertically at 610 mm o.c.
  5. Gypsum board (12.7 mm thick) installed horizontally
Note: There is an air space of 64 mm between the polystyrene board (EZfoil, ISOFOIL and PROfoil) and the gypsum board.
Table 9. Results of modeling the thermal resistance values for wall assembly 5
Property Unit Requirement Result
k1Table footnote (1) k2Table footnote (1)
Room-side air temperature °C Report value 21 21
Weather-side air temperature °C Report value –18 –18
Thermal resistance of the wallTable footnote (2)Table footnote (3) (m2·K)/W Report value 3.18 3.11
Design thermal resistance of the wallTable footnote (3)Table footnote (4) (m2·K)/W Table footnote (5) 3.33 3.26
furred air space assembly within wall assembly 5

Figure 5. Assembly 5 - EZfoil, ISOFOIL and PROfoil adjacent to the furred air space assembly installed within wall assembly 5

  1. Concrete wall (200 mm thick)
  2. Aluminum tape (50 mm wide)
  3. EZfoil, ISOFOIL and PROfoill (76 mm thick) with low-emissivity material facing the furred air space
  4. Double wood furring: furring (19 mm × 64 mm) installed vertically at 610 mm o.c. and furring (19 mm × 64 mm) installed horizontally at 406 mm o.c.
  5. Gypsum board (12.7 mm thick) installed horizontally
Note: There is an air space of 38 mm between the polystyrene board (EZfoil, ISOFOIL and PROfoil) and the gypsum board.
Additional data

Data in this section does not form part of the CCMC's Code compliance opinion.

Heat transfer control (EZfoil, ISOFOIL and PROfoil board with a furred air space assembly)

The following data are provided for comparison purposes with the requirements of the Novoclimat Small Multiple-Unit Building program only. Novoclimat is a program administered by the Québec Ministry of Energy and Natural Resources. The latest requirements were issued on January 1, 2021.

Parameters used for the simulations

The effective thermal resistance of the manufacturer's designated wall assemblies 1, 2, 5, 6 and 7, shown in Figure 6, Figure 7, Figure 8, Figure 9 and Figure 10 was determined based on numerical heat transfer simulations using the HygIRC-C mode. Simulations were conducted using an indoor air temperature of 20±1°C and an outdoor air temperature of –35±1°C. These temperature parameters comply with the Novoclimat requirements. The simulations used 0.0368 for the emissivity value of the facer (result after aging and weathering) and the measured temperature-dependent thermal conductivity of the EZfoil, ISOFOIL and PROfoil. The thermal conductivity was determined as a linear fit of thermal resistance versus temperature based on testing in compliance with ASTM C518, "Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus," at mean temperatures of 24°C, 4°C, –4°C and –8°C.

Novoclimat requirements

For compliance with Novoclimat, the minimum effective thermal resistance values for foundation walls in buildings for climate locations with heating degree days (HDD) < 6 000 are presented in Table 10. The minimum requirements apply to buildings with heat-recovery ventilators.

Table 10. Minimum effective thermal resistance requirements - Novoclimat
Property Unit Requirement
zone HDD < 6 000		 ResultsTable footnote (1)Table footnote (2)
Minimum effective
thermal resistance
of the wall assembly		 wall assembly 1 (Figure 6)  (m2·K)/W 3.17 Pass
wall assembly 5 (Figure 8) Pass
wall assembly 7 (Figure 10) Pass

Table 11. Results of modeling the thermal resistance values for wall assembly 1
Property Unit Requirement Result
k1Table footnote (1) k2Table footnote (1)
Room-side air temperature °C Report value 20 20
Weather-side air temperature °C Report value −35 −35
Thermal resistance of the wallTable footnote (2)Table footnote (3) (m2·K)/W Report value 3.10 3.03
Design thermal resistance of the wallTable footnote (3)Table footnote (4) (m2·K)/W Table footnote (5) 3.25 3.18
furred air space assembly installed within wall assembly 1 (repeated)

Figure 6. Assembly 1 (repeated)- EZfoil, ISOFOIL and PROfoil adjacent to the furred air space assembly installed within wall assembly 1

  1. Concrete wall (200 mm thick)
  2. Aluminum tape (50 mm wide)
  3. EZfoil, ISOFOIL and PROfoil (76 mm thick) with low-emissivity material facing the furred air space
  4. Wood furring (19 mm × 64 mm) installed vertically at 610 mm o.c.
  5. Gypsum board (12.7 mm thick) installed vertically
Note: There is an air space of 19 mm between the polystyrene board (ISOFOIL, PROfoil and EZfoil) and the gypsum board.
Table 12. Results of modeling the thermal resistance values for wall assembly 2
Property Unit Requirement Result
k1Table footnote (1) k2Table footnote (1)
Room-side air temperature °C Report value 20 20
Weather-side air temperature °C Report value −35 −35
Thermal resistance of the wallTable footnote (2)Table footnote (3) (m2·K)/W Report value 3.02 2.95
Design thermal resistance of the wallTable footnote (3)Table footnote (4) (m2·K)/W Table footnote (5) 3.17 3.10
furred air space assembly installed within wall assembly 2 (repeated)

Figure 7. Assembly 2 (repeated) - EZfoil, ISOFOIL and PROfoil adjacent to the furred air space assembly installed within wall assembly 2

  1. Concrete wall (200 mm thick)
  2. Aluminum tape (50 mm wide)
  3. ISOFOIL, PROfoil and EZfoil (76 mm thick) with low-emissivity material facing the furred air space
  4. Wood furring (19 mm × 64 mm) installed horizontally at 610 mm on centre
  5. Gypsum board (12.7 mm thick) installed horizontally
Note: There is an air space of 19 mm between the polystyrene board (EZfoil, ISOFOIL and PROfoil) and the gypsum board.
Table 13. Results of modeling the thermal resistance values for wall assembly 5
Property Unit Requirement Result
k1Table footnote (1) k2Table footnote (1)
Room-side air temperature °C Report value 20 20
Weather-side air temperature °C Report value −35 −35
Thermal resistance of the wallTable footnote (2)Table footnote (3) (m2·K)/W Report value 3.15 3.08
Design thermal resistance of the wallTable footnote (3)Table footnote (4) (m2·K)/W Table footnote (5) 3.30 3.23
furred air space assembly installed within wall assembly 5 (repeated)

Figure 8. Assembly 5 (repeated) - EZfoil, ISOFOIL and PROfoil adjacent to the furred air space assembly installed within wall assembly 5

  1. Concrete wall (200 mm thick)
  2. Aluminum tape (50 mm wide)
  3. EZfoil, ISOFOIL and PROfoill (76 mm thick) with low-emissivity material facing the furred air space
  4. Double wood furring: furring (19 mm × 64 mm) installed vertically at 610 mm o.c. and furring (19 mm × 64 mm) installed horizontally at 406 mm o.c.
  5. Gypsum board (12.7 mm thick) installed horizontally
Note: There is an air space of 38 mm between the polystyrene board (EZfoil, ISOFOIL and PROfoil) and the gypsum board.
Table 14. Results of modeling the thermal resistance values for wall assembly 6
Property Unit Requirement Result
k1Table footnote (1) k2Table footnote (1)
Room-side air temperature °C Report value 20 20
Weather-side air temperature °C Report value −35 −35
Thermal resistance of the wallTable footnote (2)Table footnote (3) (m2·K)/W Report value 2.96 2.89
Design thermal resistance of the wallTable footnote (3)Table footnote (4) (m2·K)/W Table footnote (5) 3.11 3.04
furred air space assembly installed within wall assembly 6

Figure 9. Assembly 6 - EZfoil, ISOFOIL and PROfoil adjacent to the furred air space assembly installed within wall assembly 6

  1. Concrete wall (200 mm thick)
  2. Aluminum tape (50 mm wide)
  3. ISOFOIL, PROfoil and EZfoil (76 mm thick) with low-emissivity material facing the furred air space
  4. Wood furring (19 mm × 64 mm) installed horizontally at 406 mm on centre
  5. Gypsum board (12.7 mm thick) installed horizontally
Note: There is an air space of 19 mm between the polystyrene board (EZfoil, ISOFOIL and PROfoil) and the gypsum board.
Table 15. Results of modeling the thermal resistance values for wall assembly 7
Property Unit Requirement Result
k1Table footnote (1) k2Table footnote (1)
Room-side air temperature °C Report value 20 20
Weather-side air temperature °C Report value −35 −35
Thermal resistance of the wallTable footnote (2)Table footnote (3) (m2·K)/W Report value 3.16 3.09
9Design thermal resistance of the wallTable footnote (3)Table footnote (4) (m2·K)/W Table footnote (5) 3.31 3.24
furred air space assembly installed within wall assembly 7

Figure 10. Assembly 7 - EZfoil, ISOFOIL and PROfoil adjacent to the furred air space assembly installed within wall assembly 7

  1. Concrete wall (200 mm thick)
  2. Aluminum tape (50 mm wide)
  3. EZfoil, ISOFOIL and PROfoil (76 mm thick) with low-emissivity material facing the furred air space
  4. Wood furring (38 mm × 64 mm) installed vertically at 610 mm o.c.
  5. Gypsum board (12.7 mm thick) installed horizontally
Note: There is an air space of 38 mm between the polystyrene board (EZfoil, ISOFOIL and PROfoil) and the gypsum board.

Administrative information

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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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Code compliance as an acceptable solution

Code Compliance via Acceptable Solutions

If a building design (e.g. material, component, assembly or system) can be shown to meet all provisions of the applicable acceptable solutions in Division B (e.g. it complies with the applicable provisions of a referenced standard), it is deemed to have satisfied the objectives and functional statements linked to those provisions and thus to have complied with that part of the Code.

National Building Code of Canada, Sentence A-1.2.1.1.(1)(a)

The CCMC has determined that compliance with this provision of the Code has been demonstrated as an Acceptable Solution. The evaluation report provides a summary of the basis of CCMC's compliance opinion.

CCMC's code compliance opinions

All CCMC evaluation reports are opinions of code compliance established in accordance with the National Building Code of Canada, Subsection 1.2.1. "Compliance with this Code," which requires compliance to be achieved by:

  • complying with the applicable acceptable solutions in Division B, or
  • using an alternative solution that will achieve at least the minimum level of performance required by Division B in the areas defined by the objective and functional statements attributed to the applicable acceptable solutions.

The CCMC assesses compliance with Canadian building, energy and safety codes, and is trusted by over 6,000 regulators across Canada.

Code compliance as an alternative solution

Code Compliance via Alternative Solutions

Where a design differs from the acceptable solutions in Division B, then it should be treated as an "alternative solution." A proponent of an alternative solution must demonstrate that the alternative solution addresses the same issues as the applicable acceptable solutions in Division B and their attributed objectives and functional statements. However, because the objectives and functional statements are entirely qualitative, demonstrating compliance with them in isolation is not possible. Therefore, Clause 1.2.1.1.(1)(b) identifies the principle that Division B establishes the quantitative performance targets that alternative solutions must meet. In many cases, these targets are not defined very precisely by the acceptable solutions [...] Nevertheless, Clause 1.2.1.1.(1)(b) makes it clear that an effort must be made to demonstrate that an alternative solution will perform as well as a design that would satisfy the applicable acceptable solutions in Division B—not “well enough” but “as well as.”

National Building Code of Canada, Sentence A-1.2.1.1.(1)(b)

The CCMC has determined that compliance with this provision of the Code has been demonstrated as an Alternative Solution. The evaluation report provides a summary of the basis of CCMC's compliance opinion.

CCMC's code compliance opinions

All CCMC evaluation reports are opinions of code compliance established in accordance with the National Building Code of Canada, Subsection 1.2.1. "Compliance with this Code," which requires compliance to be achieved by:

  • complying with the applicable acceptable solutions in Division B, or
  • using an alternative solution that will achieve at least the minimum level of performance required by Division B in the areas defined by the objective and functional statements attributed to the applicable acceptable solutions.

The CCMC assesses compliance with Canadian building, energy and safety codes, and is trusted by over 6,000 regulators across Canada.

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From: National Research Council Canada

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