21
GROWSPAN
™
GOTHIC PREMIUM HIGH TUNNELS
Revision date: 01.08.21 108179_80_81_82_83_84H
MAIN COVER INSTALLATION (Film or 5.2 oz Fabric)
The steps to install the main cover include:
1. Attach the u-channel along the high tunnel sides and
tops of the high tunnel
end rafters
.
2. Pull the cover material (film or 5.2 oz.) over the frame
and attach to the end rafters.
3. Stretch and attach the cover.
INSTALL U-CHANNEL
ATTENTION: IF NEEDED, REVISIT THE DIAGRAMS ON
THE PREVIOUS PAGE FOR U-CHANNEL LOCATIONS.
Complete these steps:
1. For high tunnels with drop-down sides, attach one
section of 102197 u-channel flush to the end of the
ribbon board using FA4652 wood screws
spaced
every 12"
. Position near the top of the board.
For high tunnels with roll-up sides and an installed
ribbon board (
FIG. 2,
previous page), attach the
104211 double u-channel to the ribbon board by
installing a wood screw
in each channel every 24".
ATTENTION:
For best results, predrill the mounting
holes in the u-channel using a 3/16" drill bit.
For
high tunnels without a ribbon board
, attach the
104211 double u-channel directly to the rafters. Install a
Tek screw in each channel and into each rafter. See the
diagram that follows.
2. Continue attaching the u-channel sections to the ribbon
board (or rafters for no ribbon board) and work toward
the other end of the frame.
3. Cut the last section of u-channel to the required length
so that it is flush with the end of the ribbon board.
5. After attaching the u-channel to the ribbon board (or
rafters for the roll-up side option), use Tek screws to
attach the 102197 u-channel to the top edge of the end
rafters.
Space screws every 12"-16".
4. Repeat these steps to attach the u-channel to the
ribbon board along the remaining side of the frame.
NOTE:
The 102197 u-channel will bend with the
curve of the rafter as it is attached.
FOR BEST
RESULTS, DO NOT SPLICE U-CHANNEL
SECTIONS ON ANY RAFTER CURVE.
6. Continue to attach the 102197 u-channel until it has
been installed on the top of
both end rafters
.
7. Read the information on the following pages and
continue as instructed.
U-channel
Position
REQUIRED PARTS
• Single U-channel (102197) and 104211 Double
U-channel for Roll-Up Side option.
• FA4652 Wood Screws and FA4482B Tek screws.
U-channel
(104211)
Tek Screw
Outside the Frame
Inside the Frame
Rafter Leg
ROLL-UP
SIDES ONLY
Purlin clamp
and purlin pipe.
Top of end rafter
Location of the side runs of u-channel and
ribbon board.
Step 5
