TREX SELECT, Руководство по установке

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18
DE
C
K
IN
G
1/4" – 1/2"
(6 mm – 13 mm)
3/16”
(5 mm)
Gapping and Overhang
You must gap Trex decking both end-to-end and
width-to-width. Gapping is necessary for drainage and
the slight thermal expansion and contraction of Trex
decking boards. Gapping also allows for shrinkage of
the wood joist system.
»
ALWAYS follow Trex-recommended gapping
guidelines.
» Maximum allowable perpendicular overhang for all
Trex decking is 1/2 " (13 mm).
» All decks require air circulation to keep them dry and
looking good. To improve air flow, leave openings
under the decking or increase gapping to 3/8
"
(10 mm).
End-to-End/End-to-Width
Gap Trex decking end-to-end, based upon the
temperature at installation.
See chart at left.
For fastening tips, see page 30.
Abutting Solid Objects
When decking is abutting a wall, you must also gap it
1/4"–1/2" (6–13 mm) depending on the temperature at
installation.
See chart at left.
Width-to-Width
The minimum required width-to-width gapping is
3/16
" (5 mm). This is allowed for both hot and cold
weather installations. For docks and heavily wooded
areas, Trex recommends a 3/8
" (10 mm) gap. No
gapping should ever exceed 1/2 " (13 mm).
*Temperature at installation.
End-to-End/End-to-Width and Abutting Gap
End-to-End/
End-to-Width Abutting Gap
3/16 " (5 mm)
Width-to-Width Gap
1/8 " – 3/16 "
(3 mm – 5 mm)
Above 40°F* (4.5°C)* 1/8 " (3 mm) 1/4 " (6 mm)
Below 40°F* (4.5°C)* 3/16 " (5 mm) 1/2 " (13 mm)
When you use the recommended hidden fasteners,
the placement of the hidden fastener establishes the
designated gap size.
When installing fascia, gapping rules must apply.
NOTE: Construction methods are always improving. Please refer to www.trex.com for the most up-to-date installation requirements.
1/8" – 3/16"
(3 mm – 5 mm)