[CCMC 13473-R] CCMC Canadian code compliance evaluation
From: National Research Council Canada
Flexstone Coatings Inc.
1230 West 75 Avenue
|Compliance:||NBC 2015, OBC|
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.
It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as a cold, liquid-applied polyurethane roofing membrane in accordance with the conditions and limitations stated in this evaluation, complies with the following code:
National Building Code of Canada 2015
|ID||Code provision||Solution type|
|09-26-01-02-00-0-00||188.8.131.52.(1) Roofs shall be protected with roofing, i ...||Acceptable|
|09-26-02-00-00-0-00||9.26.2. Roofing Materials||Alternative|
Ontario Building Code
Ruling No. 15-04-325 (13473-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 2015-09-29 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.
The product is a roofing membrane system consisting of three distinct layers of liquid-applied polyurethane coatings that, once cured, form a seamless, monolithic roofing membrane.
The base coat is Solvent Free Base - Polyurethane Base Membrane (water-catalyzed, aromatic urethane). The middle layer (COLORCOAT AR) is a single-component, aliphatic polyurethane. The acrylic flakes are broadcast while the middle layer is still wet. Then, the top layer, MULTI-GLAZE CLEAR COAT moisture cured urethane, i (Aliphatic Urethane Clear Sealer), is applied.
This evaluation is valid only for products produced at the following plant:
|Product name||Manufacturing plant|
|Fontana, CA, US|
|FlexStone||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.
- The product must be installed on a concrete or plywood substrate that provides positive drainage, where the minimum roof slope is 1 in 50 and the maximum is 1 in 25.
- When the product is used in buildings requiring a fire classification as per the NBC 2015, the product must be tested in accordance with the criteria in CAN/ULC-S107-10, “Methods of Fire Tests of Roof Coverings” in order to determine the product’s fire classification.
- When the product is used in a roof assembly that requires a fire-resistance rating, the rating must be determined based on the results of tests conducted in conformance with CAN/ULC-S101-14, “Standard Methods of Fire Endurance Tests of Building Construction and Materials.”
- The substrate must be free of debris, clean, and dry prior to installing the product.
- The product must be installed by manufacturer-approved installers.
- The product must be installed in accordance with the manufacturer’s installation instructions.
- Usage of the product is limited to areas exposed to light, pedestrian traffic.
- The packaging for the product containers must be identified with the following information:
- manufacturer’s name or logo; and
- the phrase “CCMC 13473-R.”
This evaluation is based on demonstrated conformance with the following criteria:
|Criteria number||Criteria name|
|CCMC-TG-075610.02-15||CCMC Technical Guide for Cold, Liquid-Applied Elastomeric Roofing Membrane (Exposed to Light Pedestrian Traffic)|
CCMC’s Technical Guide for “Cold-Applied, Liquid, Elastomeric Roofing (Exposed to Light Pedestrian Traffic)” sets out the nature of the technical evidence required by the CCMC to enable it to evaluate a product as an acceptable or alternative solution in compliance with the NBC 2015. The Report Holder has submitted test results for CCMC’s evaluation. Testing was conducted at an independent laboratory recognized by the CCMC. The corresponding test results for “FlexStone” are summarized below.
|Linear dimensional change in length||FlexStone||%||≤ ±1||−0.5|
|Linear dimensional change in width||FlexStone||%||≤ ±1||−0.4|
|Water absorption||Base coat with middle coat||%||≤ ±3||2|
|Tensile strength (tension)||Base coat||MPa||Report value||2.55|
|Elongation||Base coat||%||Report value||364|
|Water vapour permeance||FlexStone||ng/(Pa·s·m2)||Report value||69.4|
|Flexibility – mandrel bend||Base coat||-||No cracking or flaking||Pass|
|Tear resistance||Base coat||kN/m||≥ 5.8||10.0|
|Abrasion resistance||FlexStone||mg||≤ 50||8|
|Indentation hardness||Base coat||Durometer units||Report value||58|
|FlexStone||82 ± 5||69Table footnote (1)|
|Static puncture||Base coat||
|4 out of 5 samples ≥ 150 and must pass watertightness test||5 out of 5 at 23 ± 2°C|
|Base coat||5 out of 5 at −15 ± 2°C|
|Dynamic impact (puncture)||Base coat||
|20 out of 24 samples ≥ 9 and must pass watertightness test||24 out of 24 at 23 ± 2°C|
|Base coat||24 out of 24 at −15 ± 2°C|
|Peel adhesion||Base coat||N/m||≥ 875 concrete||1 043|
|Base coat||≥ 525 plywood||1 303|
|Crack bridging as received||Base coat||-||No evidence of cracking, splitting, pinholes or loss of adhesion||Pass|
|Crack bridging after heat aging||Base coat||-||No evidence of cracking, splitting, pinholes or loss of adhesion||Pass|
|Retention of tensile strength after H2O solution||Base coat||% of original||≥ 70 average||
90 (2.30 MPa)
|Retention of tensile strength after NaCl solution||Base coat||% of original||≥ 70 average||
85 (2.17 MPa)
|Retention of tensile strength after heat aging||Base coat||% of original||Report value||
90 (2.30 MPa)
|Retention of tensile strength after heat aging||FlexStone||% of original||≥ 90 average||
95 (2.77 MPa)
|Retention of elongation after heat aging||Base coat||%||Report value||
56 (204% of original)
|Retention of elongation after heat aging||FlexStone||%||≥ 90 average||
90 (225% of original)
|Retention of tensile strength after accelerated weathering FL/UV – 5000 hours||Base coat||% of original||Report value||
85 (2.17 MPa)
|Retention of tensile strength after accelerated weathering FL/UV – 5000 hours||FlexStone||% of original||≥ 90 average||
85 (2.48 MPa)Table footnote (1)
|Retention of elongation after accelerated weathering FL/UV – 5000 hours||Base coat||%||Report value||
47 (171% of original)
|Retention of elongation after accelerated weathering FL/UV – 5000 hours||FlexStone||%||≥ 90 average||
82 (205% of original)Table footnote (2)
|Glass transition before heat aging||Base coat||°C||Report value||−49.7|
|Glass transition after heat aging||Base coat||°C||Report value||−44.4|
|Change in glass transition (ΔTg) from before and after heat aging||Base coat||°C||≤ ± 8||5.3|
|Glass transition before accelerated weathering FL/UV – 5000 hours||Base coat||°C||Report value||−49.7|
|Glass transition after accelerated weathering FL/UV – 5000 hours||Base coat||°C||Report value||−46.3|
|Change in glass transition (ΔTg) from before and after accelerated weathering FL/UV – 5000||Base coat||°C||≤ ± 8||3.4|
|Watertightness after static puncture||Base coat||-||No leakage||Pass at 23 ± 2°C|
|Base coat||No leakage||Pass at −15 ± 2°C|
|Watertightness after dynamic impact (puncture)||Base coat||-||No leakage||Pass at 23 ± 2°C|
|Base coat||No leakage||Pass at −15 ± 2°C|
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.
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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© His Majesty the King in Right of Canada, as represented by the National Research Council of Canada, 2023
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.