[CCMC 12935-R] CCMC Canadian code compliance evaluation
From: National Research Council Canada
Owens Corning Canada Inc.
3450 McNicoll Avenue
|Product name(s):||FOAMULAR® CodeBord® Air Barrier System (CABS)|
|Code compliance:||NBC 2015, OBC 2017|
In most jurisdictions this document is sufficient evidence for approval by Canadian authorities.Learn more about CCMC recognition
Code compliance opinion
It is the opinion of the Canadian Construction Materials Centre that FOAMULAR® CodeBord® Air Barrier System (CABS), when used as an air barrier system for exterior walls of buildings in accordance with the conditions and limitations stated in this evaluation, complies with the following Canadian code(s):
National Building Code of Canada 2015
|Code provision||Solution type|
|188.8.131.52. Structural and Environmental Loads||Acceptable|
|184.108.40.206. Resistance to Deterioration||Acceptable|
|5.2.2. Structural Loads and Design Procedures||Acceptable|
|5.4.1. Air Barrier Systems||Acceptable|
|220.127.116.11. Required Barrier to Air Leakage||Acceptable|
|18.104.22.168.(1) Air Barrier System Prpoerties (effective barrier to air infiltration and exfiltration)||Acceptable|
|22.214.171.124.(2) Air Barrier Systems Properties (alternative to 6-mil polyethylene air barrier)||Alternative|
|126.96.36.199. Continuity of the Air Barrier System||Acceptable|
|188.8.131.52. ASTM C 920-14 Elastomeric Joint Sealants ...||Acceptable|
Ontario Building Code 2017
Ruling No. 09-39-237 (12935-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 2009-12-30 (revised 2017-03-31) 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 is 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 which forms the basis of this evaluation has been included.
This report addresses the performance of the product as an air barrier system as specified by Owens Corning. The product consists of the following components and accessories (see Figure 1) providing the following functions:
Plane of airtightness
- FOAMULAR® CodeBord® extruded polystyrene (XPS), Type 3 (see CCMC 13431-L) as the principal material in the plane of airtightness. Please note that this evaluated air barrier system is achieved without a sealed polyethylene vapour barrier on the interior side of wall assembly.
Accessories for continuity include two approaches:
- For Original CABS:
- FoamSealR™, a foamed polyethylene sealing gasket installed behind all (i.e., vertical and horizontal) FOAMULAR® CodeBord® XPS panel joints, and also at XPS panel termination points around penetrations such as around windows and doors;
- For Hybrid CABS:
- FoamSealR™, a foamed polyethylene sealing gasket installed behind FOAMULAR® CodeBord® XPS horizontal joints at the perimeter of the uppermost top plate (i.e., top floor) and the bottom of the lowermost floor perimeter (i.e., along header) only, and around windows and doors;
- CCMC-evaluated Owens Corning (OC) JointSealR® Foam Joint Tape (CCMC 14003-R) to seal horizontal and vertical joints of the XPS panels; and
- CCMC-evaluated OC FlashSealR® Foam Flashing Tape (CCMC 14003-R) to seal around window and door openings, in lieu of FoamSealR™ foam gaskets. A combination of specified gasket and tape can also be used as per the manufacturer's details.
- For both Original and Hybrid CABS:
- sealant foam that is a one-component, spray-in-place polyurethane evaluated by the CCMC (see CCMC 13074-L) or meeting CAN/ULC-S710.1-05, “Standard for Thermal Insulation – Bead-Applied One Component Polyurethane Air Sealant Foam, Part 1: Material Specification,” and CAN/ULC-S710.2-05, “Standard for Thermal Insulation – Bead-Applied One Component Polyurethane Air Sealant Foam, Part 2: Installation.” The sealant must have qualified for sealing the 2 relevant contact surfaces around penetrations to be sealed, covering vinyl and wood as a minimum (i.e., for sealing wood rough opening and vinyl windows), but preferably also XPS and galvanized metal;
- 4-mil polyethylene as the designated “vapour barrier” only (i.e., unsealed joints), compliant with Subsection 9.25.4., Vapour Barriers, of Division B of the NBC 2015;
- 6-mil polyethylene air/vapour barrier conforming to CAN/CGSB-51.34-M86, “Vapour Barrier, Polyethylene Sheet for Use in Building Construction,” installed at ceiling locations and on the interior where specified in the CABS for the continuity of the plane of airtightness; and
- specified caulking sealants conforming to CAN/CGSB-19.0-M77, “Methods of Testing Putty, Caulking and Sealing Compounds.”
Specified XPS thickness, stud spacing, cap nails and nailing schedule to provide the strength to resist wind loads in low-rise buildings achieved by fastening the CABS to the supporting structure.
To be installed by Owens Corning-trained installers following detailed air barrier system fabrication site details.
This evaluation is valid only for products produced at the following plants:
- Grande-Île (Valleyfield), Québec, Canada
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 2 CABS systems have demonstrated sufficiently low air permeance in accordance with NBC 2015 for buildings with an indoor environment of 20°C and winter design relative humidity (RH) of 35% or less (see table "Results of testing of air leakage rate of the product after wind loading" below).
- The Hybrid CABS has demonstrated sufficient strength to resist wind loads and to be used in low-rise buildings in geographical locations:
- where the wind pressure Q50 ≤ 0.75 kPa (1-in-50 year wind pressure return period found in Appendix C of the NBC 2015), for the 20-mm-thick XPS on studs at 400 mm (16 in.) o.c., for maximum building height of 20 m, and
- where the wind pressure Q50 ≤ 0.55 kPa, for the 25-mm-thick XPS on studs at 600 mm (24 in.) o.c., for a maximum building height of 12 m.
- The Original CABS has demonstrated sufficient strength to be used in low-rise buildings in geographical locations:
- where the wind pressure Q50 ≤ 0.60 kPa, for the 25-mm-thick XPS on studs at 400 mm (16 in.) o.c., for maximum building height of 12 m.
- In order to confirm air leakage control and strength in the field, the CABS must be installed:
- with the minimum specified thickness for the respective stud spacing over wood-frame walls; and
- installed in the field by Owens Corning-trained installers/contractors according to the Owens Corning “FOAMULAR® CodeBord® Air Barrier System (CABS)” installation manual, publication no. 300494, dated 2011, which contains detailed construction drawings which must be followed for the original CABS and alternative details (Section 6-1), and also “FOAMULAR® CodeBord® Air Barrier System Installation Manual,” publication no. 300494A, dated 2016 for installation of the hybrid system (see Appendix A for examples).
- A copy of the installation instructions must be available on the job site at all times during the installation for review by building officials. All installers must present their identification card upon request by the building official.
This evaluation is based on demonstrated conformance with the following criteria:
|Criteria number||Criteria name|
|CCMC-TG-072709.01-15A||CCMC Technical Guide for Air Barrier Systems|
The Report Holder has submitted technical documentation for the CCMC’s evaluation. Testing was conducted at laboratories recognized by the CCMC. The corresponding technical evidence for this product is summarized below.
The product has demonstrated performance that meets the criteria of the CCMC Technical Guide. To qualify, a conforming air barrier system must:
- have an acceptable low air leakage rate;
- be continuous;
- be durable;
- have sufficient strength to resist the anticipated air pressure load; and
- be buildable in the field.
Air leakage testing
|Original CABS (25-mm FOAMULAR® CodeBord®; XPS with foam gaskets beneath XPS panel joints)||Specimen no. 1 – opaque wall||Air leakage rateTable footnote (1) at 75 Pa ΔP ≤ 0.05 L/(s·m2)||0.048 L/(s·m2)Table footnote (2)|
|Specimen no. 2 – continuity at penetrations|
|Specimen no. 3 – continuity at foundation and brick straps|
|Hybrid CABS (20-mm FOAMULAR® CodeBord® XPS(R4) with exterior taped seams)||Specimen no. 1 – opaque wall||Air leakage rateTable footnote (3) at 75 Pa ΔP ≤ 0.05 L/(s·m2)||0.042 L/(s·m2)Table footnote (2)|
|Specimen no. 2 – continuity at penetrations, foundation, brick straps|
|Hybrid CABS (25-mm FOAMULAR® CodeBord® XPS(R5) with exterior taped seams)||Specimen no. 1 – opaque wall||Air leakage rateTable footnote (1) at 75 Pa ΔP ≤ 0.05 L/(s·m2)||0.040 L/(s·m2)Table footnote (2)|
|Specimen no. 2 – continuity at penetrations, foundation, brick straps|
|Drying potential based on water vapour permeance (WVP) of outermost layer of wall assembly (ng/Pa·s·m2)||Maximum permissible air leakage rates (L/s·m2) @ 75 Pa|
|15 < WVPTable footnote (1) ≤ 60||0.05Table footnote (1)|
|60 < WVP ≤ 170||0.10|
|170 < WVP ≤ 800||0.15|
Durability of system components
|Original CABS||FOAMULAR® CodeBord®||Air permeance before and after aging (ASTM D 726-84) < 10% increase||PassedTable footnote (1)|
|Thermal resistance after heat aging and weathering 90% retention||Passed|
|FoamSealR™ polyethylene sealing gasket||Oxidative induction time (OIT) ≥ 30 minutes||Passed|
|proprietary spray-in-place foam sealant||Air leakage after aging ≤ 0.5 L/s at 75 Pa ΔP||Passed|
|caulking sealant for protection from weather||Meets ASTM C 920-14||Not evaluated for durability of air leakage performance|
|Hybrid CABS||FOAMULAR® CodeBord®||Air permeance before and after aging as per ULC S741 aging (i.e., 28 cycles of UV exposure + heat aging 772 h at 50°C) < 10% increase||Passed|
|JointSealR®; Foam Joint Tape||See CCMC 14003-R||Passed|
|FlashSealR® Foam Flashing Tape||See CCMC 14003-R||Passed|
|XPS panel||Attachment schedule||Wind load limit (Q50)||Deflection beyond framing (max.)|
|20-mm FOAMULAR® CodeBord®||Nails with 25-mm (1-in.) diameter cap washers, at 150 mm (6 in.) o.c., into wood studs at 400 mm (16 in.) o.c.||Q50 ≤ 0.75 kPa||22 mm|
|25-mm FOAMULAR® CodeBord®||Nails with 25-mm (1-in.) diameter cap washers, at 150 mm (6 in.) o.c., into wood studs 600 mm (24 in.) o.c.||Q50 ≤ 0.55 kPa||11 mm|
Appendix A – Construction details
The figures below outline the specimens tested representing typical construction details to be reproduced in the field by OCtrained installers as part of the installation quality control of the “FOAMULAR® CodeBord® Air Barrier System (CABS).” See Owens Corning’s installation manuals entitled “FOAMULAR® CodeBord® Air Barrier System” publication no. 300494, dated 2011 and “FOAMULAR® CodeBord® Air Barrier System Installation Manual” publication No. 300494A, dated 2016, for more complete details.
This evaluation is issued by the Canadian Construction Materials Centre (CCMC), a part of the Construction Research Centre at the National Research Council of Canada (NRC). The evaluation must be read in the context of the entire CCMC Registry of Product Assessments and the legislated applicable building code in effect.The CCMC was established in 1988 on behalf of the applicable regulator (i.e., the provinces and territories) to ensure—through assessment—conformity of alternative and acceptable solutions to regional building codes as determined by the local authority having jurisdiction (AHJ) as part of the issuance of a building permit.
It is the responsibility of the local AHJs, design professionals, and specifiers to confirm that the evaluation is current and has not been withdrawn or superseded by a later issue. Please refer to the website or contact:
Canadian Construction Materials Centre
Construction Research Centre
National Research Council of Canada
1200 Montreal Road
Ottawa, Ontario, K1A 0R6
The NRC has evaluated the material, product, system or service described herein only for those characteristics stated 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 (i.e., AHJs, design professionals and specifiers). This evaluation is only valid when the product is installed in strict compliance with the stated conditions and limitations of evaluation and the applicable local building code. In circumstances where no applicable local building permit is issued and that no confirmation of compliance ‘for use in the intended field application’ is undertaken, this evaluation is null and void in all respects. This evaluation is provided without representation, warranty, or guarantee of any kind, expressed, or implied, and the NRC provides no endorsement for any evaluated material, product, system or service described herein. The NRC accepts no responsibility whatsoever arising in any way from any and all use and reliance on the information contained in this evaluation with respect to its compliance to the referenced code(s) and standard(s). 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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