Language selection

Search


[CCMC 14154-R] CCMC Canadian code compliance evaluation

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 exterior decking 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
09-03-02-09-00-0-009.3.2.9. Termite and Decay ProtectionAlternative
09-04-02-03-00-0-009.4.2.3. Platforms Subject to Snow and Occupancy LoadsAlternative
09-04-03-01-00-0-009.4.3.1. DeflectionsAlternative
09-23-15-05-00-0-009.23.15.5. Subfloor Thickness or RatingAlternative

National Building Code of Canada 2020

ID Code provision Solution type
90302090000009.3.2.9. Termite and Decay ProtectionAlternative
90402030000009.4.2.3. Platforms Subject to Snow and Occupancy LoadsAlternative
90403010000009.4.3.1. DeflectionsAlternative
92315050000009.23.15.5. Subfloor Thickness or RatingAlternative

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

Tropics Deckboard

Product description

The product is a wood thermoplastic composite lumber (WTCL) made primarily from oak hardwood flour and reclaimed/recycled high-density polyethylene (HDPE). The product is manufactured through a continuous extrusion process and formed into planks of solid arched (lobbed) cross-sections with HDPE alloy capping. The product is manufactured in nominal dimensions of 25.4 mm × 136.4 mm and available in 2.44 m, 3.66 m, and 4.88 m lengths. The product is installed either with face fasteners or Stowaway® hidden plastic fasteners.

The product is intended to be used as exterior decking to be installed over traditional structural wood framing, spaced at 400 mm on centre (o.c.).

Isometric profile drawing of the deck boards installation details - with exposed fasteners.
Figure 1. Installation details for the product when using exposed fasteners
  1. 3 mm to 8 mm minimum end-to-end gapping, depending on length of plank and temperature at installation
  2. TG-2 (Tropics Gen 2) decking
  3. 6.4 mm minimum width-to-width gapping, depending on temperature at installation
  4. minimum of three joists per plank
  5. maximum joist spacing of 400 mm o.c.
  6. joist designed to support applicable loads
  7. two fasteners, 64 mm long, per support
Isometric profile drawing of the deck boards installation details - with hidden fasteners.
Figure 2. Installation details for the product when using hidden fasteners
  1. 3 mm to 8 mm minimum end-to-end gapping, depending on length of plank and temperature at installation
  2. 6.4 mm minimum width-to-width gapping, depending on temperature at installation
  3. minimum of three joists per plank
  4. maximum joist spacing of 400 mm o.c.
  5. joist designed to support applicable loads

Manufacturing plant

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

Product nameManufacturing plant
Prairie du Chien, WI, US
Tropics DeckboardProduct 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 with supports spaced no greater than 400 mm o.c. Each plank must be supported by at least three supports.
  • The product (planks) must be fastened to the wood joists with fasteners specified by the manufacturer that conform to Article 9.23.3.1., Standards for Nails and Screws, of Division B of the NBC 2015. The fasteners must have a corrosion-resistant coating or be made of stainless steel. The planks must be fastened with at least two fasteners per support and the fasteners must be at least 64 mm long.Footnote (1)
  • The product must not be installed below –7°C.
  • The product (planks) must be gapped end to end, based on the length of the plank and the temperature at installation. The end-to-end gapping must be between 3 mm and 8 mm, depending on the ambient temperature at installation. Refer to "Tropic Gen 2 Grooved Decking Installation Instructions" version 10533 3/23 for further details.
  • The width-to-width gapping of the planks must be 6.4 mm.
  • Slip-resistant strips must be provided in accordance with Article 9.8.9.6, Finish for Treads and Landings, of Division B of the NBC 2015.
  • The product is not to be considered as an equivalent to dimensional lumber.
  • The product is permitted where decay resistance is required according to Sentence 9.3.2.9.(3)(a), of Division B of the NBC 2015.
  • The product is permitted where termite resistance is required according to Sentence 9.3.2.9.(1)(b), of Division B of the NBC 2015.
  • The product must not be used as a stair tread.
  • Permanent point loads (such as gazebo posts) must be applied directly above the support.

  Technical information

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

Evaluation requirements
Criteria number Criteria name
CCMC-TG-067314.01-15CCCMC Technical Guide for Wood Thermoplastic Composite Lumber Exterior Decking
CCMC-TG-067314.01-20ACCMC Technical Guide for Wood Thermoplastic Composite Lumber Exterior Decking

The evaluation 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.

Material requirements 

Table 1. Results of testing physical and mechanical properties of the product
Property Unit Requirement ResultTable footnote (1)Table footnote (2)
Dimensional change – coefficient of linear expansion (thermal) – longitudinal cm/cm/°C < 2 × 10-5  2.65 × 10-5Table footnote (3)
Dimensional change – coefficient of linear expansion (thermal) – transverse cm/cm/°C < 2 × 10-5

6.47 × 10-5Table footnote (3)

Dimensional change – coefficient of linear expansion (swelling) – oven dry to vacuum pressure soak % ≤ 0.5 by 80% of specimens –0.28
Strength and stiffness – modulus of elasticity (MOE) – span-to-depth ratio within 18 to 21 MPa ≥ 750 2 424
Strength and stiffness – modulus of rupture (MOR) – span-to-depth ratio within 18 to 21 MPa ≥ 9 24.91
Impact resistance – Izod impact, notched J/m > 53.4 46.35Table footnote (4)
Hardness – 11.28-mm-diameter ball kN > 1.8 4.94
Creep, recovery, and load duration % ≤ 25 for creep 41.3Table footnote (5)
Creep, recovery, and load duration % ≥ 75 for recovery 76.4
Creep, recovery, and load duration % No failure Pass
Strength and stiffness after aging – weathering – impact resistance % ≥ 75 of non-weathered value 94.7
Strength and stiffness after aging – accelerated aging – MOE % ≥ 50 of non-aged value 101.0
Strength and stiffness after aging – accelerated aging – MOR % ≥ 50 of non-aged value 102.6
Fastener holding capacity – face fastening – nail withdrawal strength N ≥ 600 1 120
Fastener holding capacity – face fastening – lateral nail strength N ≥ 720 1 563
Fastener holding capacity – hidden fastening system – nail withdrawal strength N ≥ 600 1 177
Fastener holding capacity – hidden fastening system – lateral nail strength N ≥ 720 1 903
Table 2. Results of testing the decay, termite, and slip-resistance properties of the product
Property Requirement Result
Decay resistance – % loss in weight Mean percentage loss in weight after exposure to decay-causing fungi must be equal to or better than preservative-treated wood conforming to CAN/CSA-O80.1-M97, "Preservative Treatment of All Timber Products by Pressure Processes" Passed
Decay resistance – % loss compressive strength Mean percentage loss in compressive strength after exposure to decay-causing fungi must be equal to or better than preservative-treated wood conforming to CAN/CSA-O80.1 Passed
Termite resistance Rating must be equal to or better than preservative-treated wood conforming to CAN/CSA-O80.1 Passed
Slip resistance (longitudinal) – wet condition Slip coefficient ≥ 0.5 0.372Table footnote (1)
Slip resistance (longitudinal) – dry condition  Slip coefficient ≥ 0.5 0.502

Performance requirements 

Table 3. Results of testing the performance of the product under both concentrated static loads and impact loads: Face fastened boards
Property Unit Requirement

ResultTable footnote (1)

Concentrated static load – decking at 50°C – minimum ultimate load kN ≥ 2.45 4.97
Concentrated static load – decking at 20°C – minimum ultimate load kN ≥ 2.45 6.51
Concentrated static load – decking at –35°C – minimum ultimate load kN ≥ 2.45 7.48
Concentrated static load – decking at 50°C – maximum deflection under 0.89 kN load mm ≤ 2.0 3.34Table footnote (2)
Concentrated static load – decking at 20°C – maximum deflection under 0.89 kN load mm ≤ 2.0 1.80
Concentrated static load – decking at –35°C – maximum deflection under 0.89 kN load mm ≤ 2.0 2.32Table footnote (3)
Following impact load of 102 N·m – decking at 50°C – minimum ultimate load kN ≥ 1.78 No break
Following impact load of 102 N·m – decking at 50°C – maximum deflection under 0.89 kN load mm ≤ 2.0 6.66Table footnote (2)
Table 4. Results of testing the performance of the product under both concentrated static loads and impact loads: Boards with a hidden fastening system
Property Unit Requirement ResultTable footnote (1)
Concentrated static load – decking at 50°C – minimum ultimate load kN ≥ 2.45 4.99
Concentrated static load – decking at 20°C – minimum ultimate load kN ≥ 2.45 6.52
Concentrated static load – decking at –35°C – minimum ultimate load kN ≥ 2.45 7.27
Concentrated static load – decking at 50°C – maximum deflection under 0.89 kN load mm ≤ 2.0 3.29Table footnote (2)
Concentrated static load – decking at 20°C – maximum deflection under 0.89 kN load mm ≤ 2.0 1.75
Concentrated static load – decking at –35°C – maximum deflection under 0.89 kN load mm ≤ 2.0 2.08Table footnote (3)
Following impact load of 102 N·m – decking at 50°C – minimum ultimate load kN ≥ 1.78 No break
Following impact load of 102 N·m – decking at 50°C – maximum deflection under 0.89 kN load mm ≤ 2.0 5.83Table footnote (2)
Table 5. Results of testing the durability of the product
Property Requirement Result – S-P-F lumber Result – Tropics Deckboard
Bending stiffness Mean percentage loss in bending stiffness (MOE) after ultraviolet (UV) exposureTable footnote (1) and accelerated agingTable footnote (2) must be less than or equal to spruce lumber 14.5% 8.5%
Bending strength Mean percentage loss in bending stress (MOR) after UV exposureTable footnote (1) and accelerated agingTable footnote (2) must be less than or equal to spruce lumber 43.6% 12.9%

Additional performance data

Data in this section does not form part of the CCMC’s opinion. 

Table 6. Results of testing additional performance data - flame spread rating
Property Unit Reference value Result
Flame spread rating - ≤ 200 95
Smoke development - Report value 335

 

Table 7. Results of testing additional performance data - hidden fastening system after aging
Property Unit Requirement ResultTable footnote (1)
Fastener holding capacity after aging at 50°C – hidden fastening system – retained nail withdrawal strength % Report value

76.6Table footnote (2)

Fastener holding capacity after aging at 50°C – hidden fastening system – retained lateral nail strength % Report value 109.3
Fastener holding capacity after aging at –35°C – hidden fastening system – retained nail withdrawal strength % Report value

151.1

Fastener holding capacity after aging at –35°C – hidden fastening system – retained lateral nail strength % Report value 51.2Table footnote (2)
Fastener holding capacity after UV aging – hidden fastening system – retained nail withdrawal strength %  Report value 97.8
Fastener holding capacity after UV aging – hidden fastening system – retained lateral nail strength % Report value 110.4
 

 

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

© His Majesty the King in Right of Canada, as represented by the National Research Council of Canada, 2024

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.

Page details

From: National Research Council Canada

Date modified: