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Results of Testing the Physical Properties of the Product
Property		Unit	Requirement	Result^{Footnote (1)} ^, ^{Footnote (2)}
Dimensional change	coefficient of linear expansion (thermal) longitudinal	cm/cm/°C	< 2 × 10^-5	4.0 × 10^-5^{Footnote (3)}
Dimensional change	coefficient of linear expansion (swelling): oven dry to vacuum-pressure soak	%	< 0.5 by 80% of specimens	0.0
Strength and stiffness	modulus of elasticity (MOE) span-to-depth ratio within 18 to 21	MPa	> 750	2766
Strength and stiffness	modulus of rupture (MOR) span-to-depth ratio within 18 to 21	MPa	> 9	29
Impact resistance (Izod impact, notched)		J/m	> 53.4	22.8^{Footnote (4)}
Hardness (11.28-mm-diam ball)		kN	> 1.8	3.0
Creep, recovery and load duration		%	< 25 for creep	38^{Footnote (5)}
Creep, recovery and load duration		%	> 75 for recovery	80
Creep, recovery and load duration		%	No failure	Pass
Strength and stiffness after aging	weathering: impact resistance	%	> 75 of non- weathered value	102
	accelerated aging - MOE	%	> 50 of non-aged value	97
	accelerated aging - MOR	%	> 50 of non-aged value	96
Fastener holding capacity	Metal clip fastener withdrawal strength	N	> 600	1426
Fastener holding capacity	Lateral Fastener Strength	N	> 720	1006
Flame-spread rating		−	≤ 200	40

Notes:

Footnote 1

Average test results of six specimens, except for the "Creep, recovery and load duration" results, which are from three specimens.

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Footnote 2

Test results were obtained to classify the products and are not intended for use as engineering design properties.

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Footnote 3

Performance result allowed based on the manufacturer's gapping installation instructions.

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Footnote 4

The Izod impact is a small-scale test used to characterize the material. Very low performance values show a sensitivity to a loss of impact strength when the product is significantly damaged by a notch, cut or split. The results of the large-scale impact floor tests are the primary performance indicator with respect to floor impact loads.

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Footnote 5

Performance result based on testing at 400 mm o.c. support span width. As a result of failure to meet the requirement, the allowable support span was reduced to 300 mm o.c.

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Results of Testing the Durability, Decay, Termite and Slip Resistance Properties of the Product
Property	Requirement	Result
		SPF Lumber	FORESTAR WPC DECKING
Durability - MOE	Mean percentage losses in MOE and MOR after UV exposure and accelerated aging must be less than or equal to spruce lumber.	15.3	17.2^{Footnote (1)}
Durability - MOR	Mean percentage losses in MOE and MOR after UV exposure and accelerated aging must be less than or equal to spruce lumber.	27.9	16.9
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^{Footnote (2)} .	Fail^{Footnote (3)}
Decay resistance - compressive strength	Mean percentage losses in weight and compressive strength after exposure to decay-causing fungi must be equal to or better than spruce heartwood^{Footnote (2)}.	Pass
Termite resistance	Rating must be equal to or better than preservative-treated wood conforming to CSA 80.1-M97.	Pass

Property		Requirement	Result Parallel to Planks	Result Perpendicular to Planks
Slip resistance ( longitudinal planks)	dry condition	> 0.5	0.2^{Footnote (4)}	0.2^{Footnote (4)}
Slip resistance ( longitudinal planks)	wet condition	> 0.5	0.5	0.6

Notes:

Footnote 1

Performance result based on testing at 400 mm o.c. support span width. As a result of failure to meet the requirement, the allowable support span was reduced to 300 mm o.c.

Return to footnote 1 referrer

Footnote 2

Decay resistance results were obtained using southern yellow pine, sweetgum and Amine copper quaternary (ACQ) treated wood; results, although not in strict conformance with the Technical Guide, were deemed acceptable based on the installation height restriction stipulated in the Conditions and Limitations section of this Report.

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Footnote 3

Performance result allowed based on the installation height restriction stipulated in the Conditions and Limitations section of this Report.

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Footnote 4

These criteria may not meet all occupant expectations. Performance result allowed for the intended use, as the slip resistance is less than the reference value. Contact the manufacturer for further information.

Return to footnote 4 referrer

Results of Testing the Performance of the Product under Concentrated Static Loads and Impact Loads
Property		Requirement		Result^{Footnote (1)}
Property		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	2.94	3.23^{Footnote (2)}
	decking at 20°C	2.45	2.4	3.47	2.7^{Footnote (2)}
	decking at –35°C	2.45	2.4	4.79	1.55
Impact load of 102 N·m	decking at 50°C	1.78	2.0	1.78	0.9

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