Because of Trex decking's wood
content, color shifts do occur. Ten to
twelve weeks of exposure to sunlight and
rain are typically required for Trex
decking to achieve its faded color. This
process is completely harmless to Trex
decking and does not affect its
durability.
A Note on Weathering:
Because Trex contains natural wood
fiber, slight fading will occur with
exposure to sunlight and moisture. Trex
decking reaches its weathered color
after 10-12 weeks. The "after
weathering" color of the boards on a
Trex deck may be different from the
colors shown in the Trex Color Palette
guide. There may also be color variation
between boards. This is normal and gives
each Trex deck a distinctive look and
character.
The weathering process may be
accelerated in dry areas by periodically
wetting down the deck using a garden
hose. Areas in heavy shade, or vertical
decking members such as posts and
balusters, may take considerably longer
to fade.