Installation Guide

13
GENERAL INFORMATION
PHYSICAL AND MECHANICAL PROPERTIES FOR TREX ACCENTS
®
Abrasion Resistance
Hardness
Self-Ignition Temperature
Flash-Ignition Temperature
Flame Spread (a) [Fire Defense]
™
Water Absorption (sanded surface)
24 hr. immersion
Water Absorption (unsanded surface)
24 hr. immersion
Typical Trex
®
Values for Coefficient of Thermal Expansion/Contraction
(36" (91.4 cm) long samples)
ASTM D2394
ASTM D143
ASTM D1929
ASTM D1929
ASTM E84
ASTM D1037
ASTM D1037
DESIGN VALUES
550 psi (3.79 Mpa)
625 psi (4.31 Mpa)
250 psi (1.72 Mpa)
200 psi (1.38 Mpa)
250 psi (1.72 Mpa)
100,000 psi
(689.48 Mpa)
.01 wear/1000 revs.
562 kg (5 kn)
743°F (395°C)
698°F (370°C)
80 [40]
4.3%
1.7%
TEST METHOD VALUES
163 lbs/in (1.12 Mpa)
558 lbs/in (3.85 Mpa)
0.62/0.70
Rating = No Decay
Rating = 9.6
>0.96
ULTIMATE (TYPICAL) VALUES
1806 psi (12.45 Mpa)
1944 psi (13.40 Mpa)
854 psi (5.89 Mpa)
561 psi (3.87 Mpa)
1423 psi (9.81 Mpa)
175,000 psi (1206 Mpa)
1.57 BTU-in/hr-ft @85°F (.0023 W/cm/°C)
Pass
Thermal
Moisture
Nail Withdrawal
Screw Withdrawal
Static Coefficient of Friction -
Dry (c)/Wet (c)
Fungus Resistance (White & Brown Rot)
Termite Resistance (d)
Specific Gravity (typical)
Compression Parallel (e )(f)
Compression Perpendicular (e)(g)
Tensile Strength (e )
Shear Strength (e)
Modulus of Rupture
(e )
Modulus of Elasticity (e )
Thermal Conductivity
Leachate (h)
Width
Length
Typical Trex Values
for Long-Term Water
Immersion
(36"/91.4 cm long samples)
Width ~3%
ASTM D1761
ASTM D1761
ASTM F1679
ASTM D1413
AWPAE1-72
ASTM D2395
ASTM D198
ASTM D143
ASTM D198
ASTM D143
ASTM D4761
ASTM D4761
ASTM C177
TCLP-EPA 1311
35.2 x 10-6 to 42.7 x 10-6 (inch/inch/°F)
644 x 10-6 to 776 x 10-6 (length/length/°C)
16.1 x 10-6 to 19.2 x 10-6 (inch/inch/°F)
297 x 10-6 to 356 x 10-6 (length/length/°C)
Typical Trex Values
for Constant High Humidity
(6"/15.2 cm long samples)
~1%
PHYSICAL MECH CAL PROPERTIES
NOTES:
(a) Corresponding Smoke Developed Index is 285.
(b) Values shown are for reference only. These values should not be used to calculate gapping for Trex. Follow Trex installation literature for proper
width-to-width and end-to-end gapping information.
(c) ASTM F1679 test conducted on sanded/unsanded weathered samples with neolite surface.
(d) Material weight loss was 0%.
(e) Ultimate strength values are not meant for design analysis. Testing performed on a 1" x 5.5" (2.5 cm x 14 cm) cross section. Design values are for
temperatures up to 130°F (54°C).
(f) Compressive strength parallel to the length.
(g) Compressive strength perpendicular to length.
(h) Leaching was below levels established by EPA for all constituent categories.