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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

Results of Testing the Durability, Decay, Termite and Slip-resistance Properties of the Product

Property

Requirement

Result

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

39.9Footnote (1)

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.Footnote (2)

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

Results of Testing the Durability, Decay, Termite and 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

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