[CCMC 14240-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

CCMC number:

14240-R

Status:

Active

Issue date:

2022-09-21

Modified date:

2023-04-11

Evaluation holder:

Gaco, a division of Firestone Building Products Company, LLC

200 4th Avenue South Suite 100
Nashville TN 37207
United States
Website: www.gaco.com
Telephone: 262-832-0674
Email: GriffithsBob@firestonebp.com

Product name:

GacoOnePass Low GWP

Compliance:

NBC 2015, NBC 2020

Criteria:

CCMC-TG-072119.06-15 "CCMC Technical Guide for Spray-Applied Rigid Polyurethane Foam Insulation – Single Pass Medium Density"
CCMC-TG-072119.06-20 "CCMC Technical Guide for Spray-Applied Rigid Polyurethane Foam Insulation – Single Pass Medium Density"

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

Learn more about CCMC recognition Look for the trusted CCMC mark on products to verify compliance.

Compliance opinion

It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as thermal insulation in accordance with the conditions and limitations stated in this evaluation, complies with the following codes:

National Building Code of Canada 2015

ID	Code provision	Solution type
05-09-01-01-00-0-00	5.9.1.1. Compliance with Applicable Standards	Alternative
09-25-02-02-01-h-00	9.25.2.2.(1)(h) Insulation Materials	Alternative
09-25-02-05-00-0-00	9.25.2.5. Installation of Spray-Applied Polyurethane	Alternative

National Building Code of Canada 2020

ID	Code provision	Solution type
5.9.1.1.	5.9.1.1. Compliance with Applicable Standards	Alternative
9.25.2.5.	9.25.2.5. Installation of Spray-Applied Polyurethane	Alternative

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 name

GacoOnePass Low GWP

Product description

GacoOnePass Low GWP is a spray-applied, rigid polyurethane foam of medium density that has a closed-cell structure. The foaming system consists of two components that must be labelled with “CCMC 14240-R” and the following information:

Isocyanate (Component A): Gaco ISO Component A - Can; and
Resin (Component B): GacoOnePass Low GWP

The two components are mixed on site by Certified installers with fixed-ratio positive displacement equipment. The colour of the installed final cured product is yellow/off-white.

This product is referred to as a ‘high-lift’ spray polyurethane foam whereby a thick layer of GacoOnePass Low GWP can be applied in a single pass. The product is installed at a maximum nominal thickness of 102 mm and a minimum nominal thickness of 50 mm. This installation method differs from the method described in CAN/ULC-S705.2-05, “Standard for Thermal Insulation – Spray Applied Rigid Polyurethane Foam, Medium Density – Application,” which specifies a 50-mm maximum nominal thickness for spray foam installed in a single pass.

The final cured product has a density of 36.2 kg/m³and is available in the following colour:

Light green

At 50-mm thick, the design long-term thermal resistance (LTTR) value is 1.92 (m²·K)/W. See physical properties of the product for estimated LTTR values at higher thicknesses.

The product is available in winter grade and regular grade formulations.

Site-manufactured product

This is a site-manufactured product; it is finished on site following the spray-application of raw materials produced at the manufacturing plant(s) below. See Installation of spray-applied polyurethane insulation for more information on the requirements for installation.

Manufacturing plant

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

Product name	Manufacturing plant
Product name	Waukesha, WI, US
GacoOnePass Low GWP	Product 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.

This is a site-manufactured product whereby the Installation of spray-applied polyurethane insulation must be performed following a Site quality assurance program (SQAP) by Certified installers trained by the evaluation holder (or their representative) and licensed by the Designated SQAP provider.
The cured polyurethane foam must have a minimum nominal thickness of 50 mm and a maximum nominal thickness of 102 mm. Any product sprayed to a thickness greater than 117 mm (maximum nominal thickness plus a field safety margin of 13 mm) must be removed from the substrate immediately after application and the substrates sprayed again. ^{Footnote (1)}
The application of the foam in multiple passes is beyond the scope of this evaluation.
The polyurethane foam can be applied on the substrates listed under Adhérence au support. Substrates must be clean, dry, and free of grease, frost, dust, rust and other contaminants that may affect the adhesion performance of the foam to the substrate.
Below-grade (exterior side of foundation wall) and attic applications are beyond the scope of this evaluation.
As required in Article 9.25.2.3., Installation of Thermal Insulation, of Division B of the NBC 2015, the insulation shall have a reasonably uniform insulation value over the entire face of the insulated area.
The assessment of the fire hazard-peak temperature reached during foam application is only valid for the tested substrates under Exigences de température des matériaux en lien avec la réaction exothermique and for foam applied in a single pass with a maximum nominal thickness of 102 mm.
The peak temperatures of the thick single pass may affect the performance and durability of materials and equipment in contact with the foam (such as ducts, pipes and electrical wires). The performance of such components is beyond the scope of this evaluation. The measured maximum temperature of the foam while curing is specified under Exigences de température des matériaux en lien avec la réaction exothermique for designers, builders, authorities having jurisdiction (AHJ), and other users to verify the potential fire hazard on utility services installed in the wall prior the foam installation. To lower the risk of damage—especially when installing materials that may melt (i.e. polyethylene vapour/air barrier)—it is important to consider the timeframe in which the foam will reach ambient temperature. Additional details are provided in Table 7.
The interior side of the polyurethane foam insulation must be covered with an approved thermal barrier as per:
- Article 3.1.4.2., Protection of Foamed Plastics, of Division B of the NBC 2015;
- Article 3.1.5.15., Foamed Plastic Insulation, of Division B of the NBC 2015; or
- Article 9.10.17.10., Protection of Foamed Plastics, of Division B of the NBC 2015.
When applicable, the exterior surface of an exterior wall containing this insulation shall be designed in accordance with Section 9.10, Fire Protection, of Division B of the NBC 2015, or Section 3.2, Building Fire Safety, of Division B of the NBC 2015. The product shall not be used in exposed interior or exterior locations.
The insulation must be kept away at least 75 mm (or as required by building regulations and safety codes) from heat-emitting devices (such as recessed lighting fixtures and chimneys). The insulation shall not be used inside electrical outlets or junction boxes.
For applications, where there may be occupants in the building, the qualified installer must ensure that the spraying area is isolated and negatively pressurized by using an exfiltration rate of 0.3 air changes per hour for at least 25 hours. An independent toxicologist assessment determined that this ventilation rate must also be in effect before occupancy is permitted in the newly insulated suite. Additional details are provided in Note 3 of Table 2
When the product is installed in an exterior insulation sheathing-type application, the low air and water vapour-permeance value of the product requires that the wall assembly conform to Table 9.25.5.2., Ratio of Outboard to Inboard Thermal Resistance, of Division B of the NBC 2015.
The product must not be installed after the expiry date printed on the label of each container. The product has a shelf life of five (5) months from the date of manufacture.
The substrate temperatures are −7°C to 24°C for the winter grade formulation and 10°C to 49°C for the regular grade formulation. The appropriate formulation shall be chosen for the specific temperature conditions of application in consultation with GACO, a division of Firestone Building Products Company.
The installation of the product must:
- conform to the general requirements of CAN/ULC-S705.2-05,
- comply with the manufacturer’s specific installation instructions for their proprietary high-lift product
- meet all conditions and limitations in this evaluation.
The continuous in-service temperature of the insulation must not exceed the range of −60°C to 80°C.
The building envelope in which this product is installed must conform to the requirements of Division B of the NBC 2015 for vapour barrier, air barrier and dampproofing (interior below-grade walls).
The product must be protected from ultraviolet radiation within 90 days of installation.
The components, Gaco ISO Component A - Can isocyanate and GacoOnePass Low GWP resin, must have their respective containers (i.e., drums) identified by the phrase “CCMC 14240-R.”

Technical information

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

Evaluation requirements
Criteria number	Criteria name
CCMC-TG-072119.06-15	CCMC Technical Guide for Spray-Applied Rigid Polyurethane Foam Insulation – Single Pass Medium Density
CCMC-TG-072119.06-20	CCMC Technical Guide for Spray-Applied Rigid Polyurethane Foam Insulation – Single Pass Medium Density

The evaluation holder has submitted technical documentation for CCMC’s evaluation. Testing was conducted at laboratories recognized by CCMC. The corresponding technical evidence for this product is summarized below.

The following were the key performance requirements of the evaluation:

Table 1. Key performance requirements
Key performance	Description
Material qualification	Foam basic properties per CAN/ULC-S705.1 requirements except for the sample preparation. Samples were sprayed at the maximum nominal thickness of 127 mm using a single pass instead of two passes of 30-mm each nominal thickness as specified in CAN/ULC-S705.1. Foam application of regular formulation at 23°C was used for testing as required in CAN/ULC-S705.1. Key physical properties in high- and low-temperature applications.
Adhesion performance	Foam adhesion strength to different substrates (the manufacturer-selected substrates are presented in Adhérence au support). Foam application of regular formulation at high surface temperature was considered a worst-case scenario.
Foam uniformity	Foam cells uniformity when sprayed in different wall cavity dimensions. Foam application of regular formulation at high surface temperature and at maximum nominal thickness was considered a worst-case scenario.
Material temperature requirements due to exothermic reaction	Maximum temperature achieved in the foam due to exothermic reaction (high internal temperature generated while curing). Foam application of summer grade formulation at highest surface temperature was considered a worst-case scenario by the manufacturer.

Material qualification

Physical properties from ambient temperature application

The basic properties of the product’s regular formulation, when sprayed over polyethylene board having a surface temperature of 23°C, are presented below. Test specimens used were extracted from the central area of foam samples sprayed at a nominal 102-mm thickness.

Table 2. Physical properties of the product
Property		Unit	Requirement	Result
Air permeance for a 25-mm-thick specimen		L/(s∙m²)	≤ 0.020	0.0021
Apparent core density		kg/m³	≥ 28.0	36.2
Compressive strength		kPa	≥ 170	209
Dimensional stability, without substrate volume change at	−20°C	%	−1	−0.4
	80°C		+8	0.3
	70°C, 97 ± 3% RH		+14	7.4
Surface burning characteristics for a 100- mm-thick specimen	Flame-spread rating^{Table footnote (1)}	--	≤ 500	270
Open-cell content volume		%	≤ 10	4
Initial thermal resistance for a 50-mm-thick specimen (after 13 days at 23°C)		(m²∙K)/W	Declare	2.39
Long-term thermal resistance (LTTR)^{Table footnote (2)}	115 mm	(m²∙K)/W	Declare	4.87
	100 mm			4.17
	75 mm			3.01
	50 mm			1.92
Tensile strength		kPa	≥ 200	323
Volatile organic emissions (VOC)^{Table footnote (3)}		hrs	≤ 30 days	25
Water absorption by volume		%	≤ 4.0	2.5
Water vapour permeance (WVP) for a 50-mm-thick specimen	Specimen with bottom skin intact (top skin removed)	ng/(Pa∙s∙m²)	≤ 60	45
Fungi resistance		--	No growth	None

Notes:

Footnote 1

The published value is based on average results from three (3) specimens tested with the skin intact for comparison purposes. For compliance with Part 9, Housing and Small Buildings, of Division B of the NBC 2015, flame-spread rating is not required. When the product is installed in other than Part 9 buildings, the flame-spread rating must be determined in compliance with the requirements of Part 3 of Division B of the NBC 2015.

Return to table footnote 1 referrer

Footnote 2

Testing was conducted in compliance with CAN/ULC-S770-09, “Standard Test Method for Determination of Long-Term Thermal Resistance of Closed-Cell Thermal Insulating Foams.”

Return to table footnote 2 referrer

Footnote 3

The volatile organic compound (VOC) emissions were measured with an assumed room ventilation rate of 0.3 air changes per hour as per CAN/ULC-S705.1. The determination of emissions and room concentration were done by an accredited testing laboratory. The time-to-occupancy is based on the recommendations of an independent toxicologist. Reported results from emission tests indicate that the product would be unlikely to cause major adverse health problems. While the testing and evaluation represent the current state-of-the art in toxicological evaluation, such tests and their results do not purport to be conclusive with respect to the impact on health

Return to table footnote 3 referrer

Physical properties in high-temperature application

The air permeance and water vapour permeance of the product’s regular formulation, when sprayed over polyethylene board having a surface temperature of 49°C, are presented below. Test specimens used were extracted from foam samples sprayed at a nominal 102-mm thickness.

Table 3. Physical properties of the product in high-temperature application
Property		Unit	Requirement	Result
Air permeance for a 42.3-mm-thick specimen		L/(s∙m²)	≤ 0.020	0.0025
Water vapour permeance (WVP) for a 50-mm-thick specimen	specimen with bottom skin intact (top skin removed)	ng/(Pa∙s∙m²)	≤ 60	47

Physical properties in low-temperature application

The initial and long-term thermal resistance of the product’s winter grade formulation, when sprayed over concrete tiles having a surface temperature of −10°C, are presented below. Test specimens used were extracted from foam samples sprayed at a nominal 60-mm thickness.

Table 4. Physical properties of the product in low-temperature application
Property		Unit	Requirement	Result
Initial thermal resistance for a 50-mm-thick specimen (after 13 days at 23°C)		(m²∙K)/W	Report value	2.36
Long-term thermal resistance (LTTR)^{Table footnote (1)}	125 mm	(m²∙K)/W	Report value	4.64
	100 mm			4.00
	75 mm			2.90
	50 mm			1.87

Adhesion performance

The adhesion strength of the product’s regular formulation, when sprayed over wood, gypsum and concrete substrates having a surface temperature of 49°C, is presented in below. Foam samples were sprayed at a nominal 102-mm thickness.

Table 5. Adhesion strength to substrate
Property		Unit	Requirement	Result
Adhesion strength^{Table footnote (1)}	Exterior gypsum board	kPa	≥ 2.6	213
	Oriented strand board (OSB)			93.6
	Plywood			169.1
	Concrete slab			121.2
	Wood			199.8
	Galvanized steel			143.1
	Glass			157.1
	Fibre board			109.3
	Aluminum			99.4
	Stainless steel			136.2
	Bare steel			139.5

Foam uniformity

The average cell size of the product’s regular formulation, when sprayed in wood frame cavities made of oriented strandboard (OSB) sheathing and 89-mm × 140-mm wood studs spaced at 600 mm on centre (o.c.), 400 mm o.c. and 300 mm o.c., are presented below. The substrate surface temperature was 49°C. Foam samples were sprayed at a nominal 102-mm thickness.

Table 6. Foam uniformity – summary of cell sizes
Property		Unit	Requirement	Result
Average cell size	Panel with two cavities of 600 mm o.c.	mm	< 0.5	Pass^{Table footnote (1)}
	Panel with two cavities of 400 mm o.c.	mm	< 0.5	Pass^{Table footnote (2)}
	Panel with two cavities of 300 mm o.c.	mm	< 0.5	Pass^{Table footnote (3)}

Material temperature requirements due to exothermic reaction

The maximum temperature and amount of time required for the product’s summer grade formulation to cool down when sprayed over wood and gypsum substrate with an ambient temperature of 49°C are presented below. Spraying over concrete substrate was not part of the testing protocol since this type of substrate is a non-combustible material. Foam samples were sprayed at a nominal 102-mm thickness.

Table 7. Material temperature requirements due to exothermic reaction
Property			Unit	Requirement	Result
Maximum recorded temperature at any place in the foam	OSB substrate		°C	< 200	186.5
Maximum recorded temperature at any place in the foam	Gypsum substrate		°C	< 200	181.6
Temperatures in the foam vs. time			°C	Temperature vs. time must be decreasing after the peak⁽¹⁾	Pass
Maximum recorded temperature at wood frame–foam interface	OSB substrate		°C	< 170	81.1
Maximum recorded temperature at wood frame–foam interface	Gypsum substrate		°C	< 170	87.0
Maximum recorded temperature at substrate–foam interface:	Wood material and gypsum bord	OSB substrate	°C	< 170	82.1
	Wood material and gypsum bord	Gypsum substrate	°C	< 170	92.2
	Melting materials		°C	Foam temperature must be less than melting temperature of the material^{Table footnote (2)}	n/a
	Non-combustible materials		--	Not required	n/a
Timeframe for the foam temperature to cool down to 51°C		OSB substrate	hr:min	Report value	10:10^{Table footnote (3)}

Notes:

Footnote 1

Any subsequent temperature peak must be lower than the initial peak.

Return to table footnote 1 referrer

Footnote 2

Any material such as ABS, polypropylene and polyethylene over which the foam will be sprayed must have a softening temperature reasonably higher than 186.5°C. Softening temperature of such materials must be determined using a recognized test method.

Return to table footnote 2 referrer

Footnote 3

Construction material such as a polyethylene vapour barrier sheet may be affected by the foam temperature if installed too early following the foam installation. The timeframe for the foam to reach ambient temperature must be considered to lower the risk of damaging any melting materials installed against the foam afterwards.

Return to table footnote 3 referrer

Site quality assurance program (SQAP)

Installation of spray-applied polyurethane insulation

In addition to the material qualification to CAN/ULC-S705.1 above, light density spray-applied polyurethane foams must be installed in accordance with CAN/ULC-S705.2 under a Site Quality Assurance Program (SQAP). This evaluation holder has engaged the Designated SQAP provider below to operate it's SQAP program for the installation of this product by Certified installers, and to provide Third-party site auditing, as required. As with any evaluation, the evaluation holder is responsible for the quality of the finished product (installed foam), and therefore is required to ensure resolution of non-conforming installations.

The installation procedure must follow the manufacturer’s instruction manual. A copy of the manual must be available at the job site at all times during the installation for review by the building official.

Certified installers

The evaluation holder requires that only specific, certified installers be authorized to install its proprietary spray-polyurethane insulation in buildings. All installers must be certified for the installation of this product by the Designated SQAP provider, having a valid photo-identification license at the time of installation, and be able to present the license on request.

Third-party site auditing

As part of its SQAP, the evaluation holder also stipulates that periodic site-audit inspections be conducted by the Designated SQAP provider. Upon completion of the site audit, the designated SQAP provider will report the product’s conformity results and any corrective action required, if necessary, to the evaluation holder. Building officials can contact the SQAP provider to request a site-audits at a specific building site.

Designated SQAP provider

The following organization has been designated by the evaluation holder as their SQAP provider, and is recognized by the CCMC as an ISO/IEC 17024 accredited personnel certification body, and ISO/IEC 17020 accredited inspection body.

Urethane Foam Consultants (UFC)
160 Main St. S, Suite 547
Brampton, ON L6W 4C1
Telephone: 905-702-2555
Website: www.foamexperts.ca

Administrative information

Use of Canadian Construction Materials Centre (CCMC) assessments

This assessment must be read in the context of the entire CCMC Registry of Product Assessments, any applicable building code or by-law requirements, and/or any other regulatory requirements (for example, the Canada Consumer Product Safety Act, the Canadian Environmental Protection Act, etc.).

It is the responsibility of the user to confirm that the assessment they are using is current and has not been withdrawn or superseded by a later version on the CCMC Registry of Product Assessments.

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.

Language

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In the case of any discrepancy between the English and French version of this document, the English version shall prevail.

Copyright

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the CCMC.

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.

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Date modified:: 2023-11-08