Installation Guide

4. INSTALLING THE TREX RAINESCAPE TROUGH
»
NOTE: If installing when temperatures fluctuate
drastically, be sure to acclimate trough material
before installing. Here are two ways.
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Fold a heavy crease down the center of the trough.
Be sure to account for the oset if installing for a
12" joist bay. (4A)
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Unroll trough material, giving plastic time to relax
and acclimate to outdoor temperatures. (4B)
TO EASE INSTALLATION, FOLD A
CREASE DOWN THE CENTER OF
THE TROUGH BEFORE INSTALLING.
IF INSTALLING IN A 12" JOIST
BAY THE FOLD NEEDS TO BE
OFFSET TO ACCOMMODATE
THE JOIST BAY
4A
BASIC INSTALLATION
7
side view of trough
If no flashing exist, fold
the TrexRainEscape Trough
behing the house siding
to create the flashing
UNROLL USING
1
1
/2" SCORE MARK
ON INSIDE OF
JOIST AS A GUIDE
SLIDE TROUGH UNDER FLASHING
PLACE FIRST STAPLE
UNROLL TO THE DOWNSPOUT
SMOOTH/SHINY SIDE FACES UP
4B
When working with the Trex RainEscape trough material,
ensure that the smooth/shiny side always faces up. (4B)
CAULK "Z" FLASHING
WITH TREX
RAINESCAPE CAULK
CAULK LEDGER
BOARD INTO
HOUSE WITH TREX
RAINESCAPE CAULK
CAULK TROUGH
INTO HOUSE
WITH TREX
RAINESCAPE
CAULK
CUT MORTAR
3C
3D
» Line up the 1
1
/2" score with the second joist. (4C)
» Place first staple at ledger board on 1-
1
/2" score
mark side. (4C)
1
2
3
4
PLACE 3RD STAPLE THROUGH
TROUGH AND DOWNSPOUT
PLACE FIRST
STAPLE
AT LEDGER
CAULK WITH COLOR MATCH SILICONE (NOT
SUPPLIED) OR USE TREX WALL FLASHING
PLACE SECOND
STAPLE BEFORE
DOWNSPOUT
FINISH STAPLING EVERY
8” TO 10” GOING FROM
SIDE-TO-SIDE UNTIL YOU
REACH THE LEDGER
4C
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Unroll trough to downspout using 1-
1
/2" score
mark on inside joist as guide.
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Cut trough to length to back wall of downspout.
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To remove memory from sheet, backroll the last
few inches of the trough. (4D)
BACKROLL LAST FEW INCHES
TO REMOVE MEMORY
FROM TROUGH
CUT A 1" WIDE BY
3
/4" TAB
TO PREVENT WICKING
CUT OFF EXCESS TROUGH 1"
AWAY FROM THE BACK OF
THE DOWNSPOUT WALL
4D
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Pull trough tight to ensure memory is released, and
place second staple on inside joist through downspout. (4C)
NOTE: If you are doing a run of 10' or more, put a
mid-span staple in to avoid trough sagging.
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On outside joist, form a trough into downspout
while lining up the edge of the score mark with
inside of joist. Place third staple through trough
and downspout on outside joist.
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Cut a 1" wide by
3
/4" tab at center edge of trough
(fold tab down) to prevent wicking. (4D)
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Pull corner at ledger and outside joist tight
keeping entire length of trough smooth and
wrinkle-free so as not to impede water flow. (4C)
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Place fourth staple on outside joist. (4C)
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Continue stapling every 6" to 8" from downspout
to ledger on both joists to secure. (4C)