Installation Guide

14
12. RAILING POSTS, 6X6 POSTS AND
OBSTRUCTIONS WHEN NOT USING
4X4 POST FLASH
»
To install a post or obstruction on the inside rim
joist, first mark the edges of the post on the trough
and draw two lines, corner to corner. Cut along the
diagonal lines.
»
Pull up tabs and install the post.
»
Staple trough as per the previous instructions.
»
Tape starting at bottom of the trough, up the post
overlapping layers to assure a water tight seal
working up around the post extending down onto
the trough. Cut the tape at a 45-degree angle on all
corners. Place a small piece of tape over the corners
where the trough and post meet, to seal the corners
from any leaks.
13. USING THE TREX RAINESCAPE
4X4 POST FLASH
»
Install the trough as shown in number 12 of this
installation guide.
»
Run a bead of caulk around the post, no more than
1" above the base of the post.
»
Slide the post flash down over the bead of caulk,
and tape the flanges to the top of the trough and
then tape the top of the post flash to the 4x4 post.
»
After decking is installed, attach the post sleeve.
»
If no post sleeve is used for the final deck, trim the
post flash to the height of the finished deck.
»
NOTE: Post flash only available for 4 x 4 posts.
See section 12 for other sizes and obstructions.
MARK EDGES OF POST ON TROUGH
AND CUT DIAGONAL LINES
FROM CORNER TO CORNER
PULL UP TABS ON ALL FOUR
CORNERS AND INSTALL
THE POST
WRAP TAPE AROUND THE POST EXTENDING
DOWN ONTO THE TROUGH. CUT THE TAPE AT
A 45 DEGREE ANGLE ON ALL CORNERS WHERE
THE TROUGH AND POST MEET TO SEAL THE
CORNERS FROM ANY LEAKS.
12
FOLLOW "9A" OF THIS INSTALLATION
GUIDE FOR ALL POST INSTALLATIONS
13
POST SLEEVE
BEFORE INSTALLING THE POST FLASHING,
APPLY A BEAD OF CAULK 1" ABOVE THE
TROUGH, THEN SLIDE THE POST FLASHING
DOWN
APPLY TAPE TO THE TOP OF THE
TROUGH OVER THE BLOCKING, OR ANY-
WHERE THERE MAY BE A PENETRATION
FROM NAILS OR DECK SCREWS
TOP VIEW SIDE VIEW
APPLY TAPE TO THE
FLASHING AND THE
TROUGH MATERIAL
IF USING A POST
SLEEVE APPLY TAPE
TO THE FLASHING
AND THE POST
IF NOT INSTALLING A POST SLEEVE, CUT POST FLASHING
TO THE TOP OF THE FINISHED DECK
MODIFICATIONS & SPECIAL CASES