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[CCMC 14086-R] CCMC Canadian code compliance evaluation

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Compliance opinion

It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as an exterior decking 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
09-03-02-09-00-0-009.3.2.9. 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
09-08-09-01-00-0-009.8.9.1. Loads on Stairs and RampsAlternative
09-23-15-05-00-0-009.23.15.5. 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

NewTechWood UltraShield®

Product description

The product is a polymer-encapsulated, wood thermoplastic composite lumber (WTCL) made primarily from equal parts of reclaimed wood fibres and recycled clear plastic bottles. The polymer capping material encases the inner core of the WTCL on all 4 sides. The product is manufactured through a continuous extrusion process in planks with a hollow cross-section. The planks are manufactured in nominal dimensions of 22.5 mm × 138 mm and are available in lengths of 3.66 m and 4.88 m. NewTechWood UltraShield® is intended to be used as exterior decking installed over traditional structural wood framing.

Isometric view of deck boards including spacing dimensions
Figure 1. NewTechWood Ultrashield®
  1. NewTechWood Ultrashield®
  2. 6 mm or 10 mm spacing between sides of the planks, depending on the temperature at installation
  3. Minimum of 3 joists per plank end to end plank installation requires double joist configuration
  4. Maximum joist spacing of 300 mm o.c. for 22.5 mm × 138 mm planks
  5. Joist designed to support applicable loads
  6. Two 38-mm-long T-shaped metal fasteners per plank at each intersecting joist, 20 mm maximum cantilever at plank ends
  7. 2 mm to 8 mm minimum spacing between ends of the planks, depending on the length of the plank and temperature at installation

Manufacturing plant

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

Product nameManufacturing plant
Daling Huizhou, China
NewTechWood UltraShield®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 with supports spaced no greater than 300 mm on centre (o.c.). Each plank must be supported by at least 3 joists.
  • The product must be installed with a double joist configuration at all end-to-end plank installations.
  • The product must be installed at a minimum 150 mm height above the finished grade.
  • The products must be fastened to the wood joists with fasteners made of stainless steel, or that have a corrosion protection coating,Footnote (1) and that conform to Article 9.23.3.1., Standards for Nails and Screws, of Division B of the NBC 2015. The planks must be fastened with at least 2 fasteners per joist, and the fasteners must have an embedment into the structure of at least 34 mm.
  • The product must be installed according to the manufacturer’s installation instructions.
  • The products must be gapped end to end, based on the length of the plank and the temperature at installation in accordance with the manufacturer’s recommendations. The end-to-end gapping must be ˃ 5 mm for installations below 15°C and ≤ 5 mm for installations above 15°C. The width-to-width gapping must be 3.1 mm.
  • The products should be installed by a knowledgeable person familiar with the product installation guide.
  • The product is not to be considered as an equivalent to dimensional lumber.
  • The product is not to be used as stair treads.
  • The product’s label or packaging must be identified with the manufacturer’s name or logo and the phrase “CCMC 14086-R.”

  Technical information

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

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

Material requirements

Table 1. Results of testing the physical properties of the hollow core product
Property Unit Requirement ResultFootnote (1) , Footnote (2)
Dimensional change coefficient of linear expansion (thermal): longitudinal cm/cm/°C < 2 × 10-5 3.43 × 10-5Footnote (3)
coefficient of linear expansion (swelling): oven dry to vacuum pressure soak % < 0.5 by 80% of specimens -0.10
Strength and stiffness modulus of elasticity (MOE): span-to-depth ratio within 18 to 21 MPa > 750 2 545
modulus of rupture (MOR): span-to-depth ratio within 18 to 21 MPa > 9 23
Impact resistance (Izod impact, notched) J/m > 53.4 20.2Footnote (4)
Hardness (11.28-mm-diameter ball) kN > 1.8 2.0
Creep, recovery and load duration % < 25 for creep 39Footnote (5)
% > 75 for recovery 78
% No failure Pass
Strength and stiffness after aging weathering: impact resistance % > 75 of non- weathered value 97
accelerated aging - MOE % > 50 of non-aged value 81
accelerated aging - MOR % > 50 of non-aged value 94
Fastener holding capacity metal clip fastener withdrawal strength N > 600 1 621
lateral metal clip (direction 1) N > 720 1 259
Flame-spread rating ≤ 200 55
Smoke development Report Not reported

 

Table 2. Results of testing the durability, decay and termite properties of the product
Property Requirement ResultTable footnote (1)Table footnote (2)
SPF lumber NewTechWood UltraShield®
Durability − MOE Mean percentage losses in MOE and MOR after UV exposure and accelerated aging must be less than or equal to spruce lumber. 21.4 39.9
Durability − MOR 27.9 15.3
Decay resistance − % loss in weight Mean percentage losses in weight and compressive strength after exposure to decay-causing fungi must be equal to or better than spruce heartwood Pass
Decay resistance − compressive strength Pass
Termite resistance Rating must be equal to or better than preservative-treated wood conforming to CSA 80.1-M97. Pass

 

Table 3. Results of testing the slip-resistance properties of the product
Property Requirement Result parallel to planks Result perpendicular to planks
Slip resistance dry condition longitudinal planks > 0.5 0.3Footnote (3) 0.3Footnote (3)
Slip resistance wet condition longitudinal planks > 0.5 0.4Footnote (3) 0.5

Performance requirements

Table 4. Results of testing the performance of the product under concentrated static loads and impact loads
Property Requirement ResultFootnote (1)
Minimum ultimate load (kN) Maximum deflection under 0.89 kN load (mm) Ultimate load (kN) Deflection under 0.89 kN load (mm)
Concentrated static load decking at 50°C 2.45 2.4 2.38 3.54
decking at 20°C 2.45 2.4 3.40 2.47Footnote (2)
decking at –35°C 2.45 2.4 5.27 1.77
Impact load of 102 N·m decking at 50°C 1.78 2.0 >1.78 0.87

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.

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From: National Research Council Canada

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