» To test for correct slope, pour a cup of water on trough at ledger board ensuring water runs to the downspout. (4G) » Follow above step for the remaining troughs.
4F
CUT OFF EXCESS TROUGH 1" AWAY FROM THE BACK OF THE DOWNSPOUT WALL
4G
RUN A WATER TEST TO ENSURE WATER RUNS TO DOWNSPOUT
CUT A 1" WIDE BY 3 / TO PREVENT WICKING AND FOLD DOWN TAB
4 " TAB
TROUGH WILL PITCH 1/4" PER 1' OR MORE
BACKROLL LAST FEW INCHES TO REMOVE MEMORY FROM TROUGH
» Pull trough tight to ensure memory is released, and place second staple on inside joist through downspout. (4E) » 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. (4E) » Cut a 1" wide by 3/4" tab at center edge of trough (fold tab down) to prevent wicking. (4F) » Pull corner at ledger and outside joist tight keeping entire length of trough smooth and wrinkle-free so as not to impede water flow. (4E) » Place fourth staple on outside joist. (4E) » Continue stapling every 6 " to 8 " from downspout to ledger on both joists to secure. (4E) » Trough material must cover all exposed wood on surface of deck
4H
SCORE DOWN THE MIDDLE OF THE TROUGH TO REMOVE WRINKLES IF NEEDED WITH A SCREEN SPLINE ROLLER
NOTE: In extreme temperature swings, trough material will expand and contract. Some wrinkling is acceptable but should not impede the flow of water.
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