14. SURFACE MOUNT POST TO SOLID BEAM OR FLAT BLOCKING
15. CANTILEVERED DOWNSPOUT » Tear off the cut-out on the front panel of the downspout. » On the back side of the downspout draw a line from corner to corner extending down 1". Cut the downspout following the line. (Some downspouts may have this line pre-indicated). » Staple the trough material from the end of the cantilever over the existing trough. Repeat all the steps as necessary for trough installation. » Tape over all joists and seams.
» When using surface mount post, pre-drill holes then use a small amount of butyl caulk on screw threads to seal holes. » DO NOT use too much butyl caulk or it will overflow on deck and post mount.
NOTE: Please refer to Trex.com for detailed post mount instructions.
14A
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CUT 1" OFF THE BACK OF THE DOWNSPOUT THAT FACES THE CANTILEVER
ATTACH TROUGHS
BARRIER STRIPS
» Insert the (2) stainless steel barrier strips under the mounting bolt holes. Barrier strips are required only if attaching post directly to pressure treated framing.
TRIM OFF EXCESS TROUGH MATERIAL
ATTACH A SECOND TROUGH FROM THE BACK OF THE CANTILEVER AND EXTEND BEYOND THE EXISTING DOWNSPOUT
14B
» Attach posts using four 3/8" x 6" (1 cm x 15.2 cm) hex cap bolts, washers, and nuts, along with aluminum back plate on underside of blocking.
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