[CCMC 12525-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

CCMC number:

12525-R

Status:

Active

Issue date:

1993-06-23

Modified date:

2022-11-21

Evaluation holder:

CGC Inc.

350 Burnhamthorpe Road West, 5th Floor
Mississauga ON L5B 3J1
Canada
Website: www.cgcinc.com
Telephone: 905-803-5600

Product name:

FIBEROCK^® Brand Underlayment – Aqua-Tough

Code compliance:

NBC 2015, OBC

Evaluation requirements:

CCMC-TG-092819-15 "CCMC Technical Guide for Fibred Gypsum Backing Board"

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

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Code compliance opinion

It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as flooring underlay 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
09-30-02-02-00-0-00	9.30.2.2. Materials and Thickness	Alternative

Ontario Building Code

Ruling No. 03-04-93 (12525-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 2003-03-18 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 that forms the basis of this evaluation has been included.

Product information

Product name

FIBEROCK^® Brand Underlayment – Aqua-Tough

Product description

FIBEROCK^® Brand Underlayment – Aqua-Tough is a panel-type underlay consisting of a homogeneous mix of gypsum reinforced with cellulose fibre. The core and the surfaces of the panel are treated for increased water resistance. The product is manufactured in thicknesses of 6.4 mm or 9.5 mm. It is available in a standard width of 1 220 mm and lengths of 1 220 mm and 2 400 mm.

Manufacturing plant

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

Product name	Manufacturing plant
Product name	Gypsum, OH, US
FIBEROCK^® Brand Underlayment – Aqua-Tough	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 6.4-mm- and 9.5-mm-thick panels can be used as flooring underlay for resilient and wood (parquet and strip) floor finishes.
The 9.5-mm-thick panel can be used as flooring underlay for ceramic tile application in residential dwellings where the supports are spaced no wider than 600 mm on centre (o.c.).
The 6.4-mm-thick panel can be used as flooring underlay for ceramic tile application in residential dwellings where the supports are spaced no wider than 400 mm o.c.
The subfloor must be installed in accordance with Subsection 9.23.15, Subflooring, of Division B of the NBC 2015.
The panel must be installed in accordance with Subsection 9.30.2., Panel-Type Underlay, of Division B of the NBC 2015 and in accordance with the manufacturer’s installation instructions.
The panel must not be used where the subfloor is expected to be exposed to high moisture conditions.
The panel must not be used where the flooring is expected to be exposed to significant or frequent wetting, such as in showers, saunas or hot-tub decks.
The product must be identified with the following information:
- manufacturer’s name or logo; and
- the phrase “CCMC 12525-R.”

Technical information

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

Evaluation requirements
Criteria number	Criteria name
CCMC-TG-092819-15	CCMC Technical Guide for Fibred Gypsum Backing Board

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.

General

Table 1. Physical properties
Property	Unit	Requirements	Result (6.4 mm)	Result (9.5 mm)
Composition of core – gypsum	% mass	≥ 65	Passed	Passed
Composition of core – fibre	% mass	≤ 15	Passed	Passed
Tolerances in thickness – average	mm	± 0.8	Passed	Passed
Tolerances in thickness – local variation	mm	± 1.6	Passed	Passed
Tolerance in width	mm	± 3	Passed	Passed
Tolerance in length	mm	± 6	Passed	Passed
End squareness	mm	± 3.2 (in full width of board)	Passed	Passed
Mass per unit area	kg/m²	Report value	7.98	9.62

Table 2. Performance requirements
Property	Unit	Requirement (6.4 mm)	Requirement (9.5 mm)	Result (6.4 mm)	Result (9.5 mm)
Linear expansion – 50% to 90% RH	%	≤ 0.2	≤ 0.2	≤ 0.01	≤ 0.0
Edge thickness swelling	%	≤ 1	≤ 1	≤ −0.67	≤ −0.22
Water resistance – 2-hr immersion	% mass	≤ 5	≤ 5	3	2
Water resistance – surface water absorption - face	g	≤ 0.5	≤ 0.5	0.9^{Table footnote (1)}	0.9^{Table footnote (1)}
Internal bond	kPa	≥ 280	≥ 280	877	913
Hardness – core, end and edge	N	≥ 2 200	≥ 2 200	6 937	3 992
Compressive strength – 450 N over 5-mm × 5-mm surface area	mm	≤ 2	≤ 2	0.5	1.14
Robinson-type floor tester – 14 cycles	n/a	No damage	No damage	Passed^{Table footnote (2)}	Passed^{Table footnote (3)}
Robinson-type floor tester – deflection	mm	Report value	Report value	1.1	1.2
Bending stiffness (EI)²	N×mm² /mm	≥ 190 000	≥ 190 000	145 000^{Table footnote (4)}	391 000
Nailhead pull resistance	N	≥ 266	≥ 334	512	409
Humidified deflection	mm	≤ 17.9	≤ 14.0	6.4	3.2
Impact resistance under dry condition – hard-impact body – 5.4 N×m	mm	Indentation ≤ 1	Indentation ≤ 1	Passed	Passed
Impact resistance under dry condition – hard-impact body – 10.9 N×m	mm	Minimum average failure load	Minimum average failure load	Passed	Passed
Impact resistance under dry condition – soft-impact body – 20.4 N×m	mm	No damage	No damage	Passed	Passed
Impact resistance under dry condition – soft-impact body – 102 N×m	mm	Minimum average failure load	Minimum average failure load	Passed	Passed

Notes:

Footnote 1

Based on the water resistance test results, the 6.4-mm- and 9.5-mm-thick panels were deemed acceptable for use in residential dwelling applications where the flooring/underlayment assembly must not be exposed to wetting or high moisture conditions.

Return to table footnote 1 referrer

Footnote 2

The 200-mm × 200-mm Interceramic ceramic floor tiles were installed over 6.4-mm-thick FIBEROCK^® Brand Underlayment – Aqua-Tough using Custom^® Flexbond^® thin-set mortar. Laticrete^® 1500 sanded grout mixed with Laticrete^® 1776 admix was used within the 3-mm grout joints. The product was installed over the 15-mm-thick tongue and groove plywood using Custom^® Flexbond^® thin-set mortar and 32-mm Durock^® underlayment screws at 200 mm o.c. throughout the panel.

Return to table footnote 2 referrer

Footnote 3

The 200-mm × 200-mm Interceramic ceramic floor tiles were installed over 9.5-mm-thick FIBEROCK^® Brand Underlayment – Aqua-Tough” using Custom^® Flexbond^® thin-set mortar. Laticrete^® 1500 sanded grout mixed with Laticrete^® 1776 admix was used within the 3-mm grout joints. The product was installed over the 18-mm-thick tongue and groove plywood using Custom^® Flexbond^® thin-set mortar and 32-mm Durock^® underlayment screws at 200 mm o.c. throughout the panel.

Return to table footnote 3 referrer

Footnote 4

Based on the test result of the Robinson-type floor testers, the 6.4-mm-thick panel was deemed acceptable for use as a flooring underlay for ceramic tile applications in dwelling units, as well as for use as a flooring underlay for resilient and wood (parquet and strip) floor finishes. See the Conditions and Limitations of this evaluation for subfloor and installations requirements.

Return to table footnote 4 referrer

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

Une version française de ce document est disponible.
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:: 2022-11-21