4
GROWSPAN
™
ROUND PREMIUM HIGH TUNNELS
Revision date: 10.25.21
ANTI-BILLOW ROPE INSTALLATION
TO PREVENT DAMAGE AND POSSIBLE INJURY,
INSTALL THE ANTI-BILLOW ROPES IN SHORT
LENGTHS ALONG EACH SIDE OF THE FRAME.
DO NOT INSTALL AS A SINGLE LENGTH TIED AT
EACH END OF THE BUILDING. DOING SO WILL
RESULT IN A LOOSE SIDE PANEL IF THE SINGLE
ROPE BREAKS DURING STRONG WINDS.
ROPE
#1
NOTE:
The circles identify
the ends of ROPE #1.
ROPE
#2
IMPORTANT: IF RIBBON BOARDS ARE USED,
PURCHASE WOOD SCREWS TO ATTACH THE
U-CHANNEL TO THE INSTALLED RIBBON BOARD.
TEK SCREWS ARE NOT WOOD FASTENERS. NEVER
USE TEK SCREWS TO SECURE ANY COMPONENT
TO WOOD. THEY WILL NOT HOLD.
Ribbon Board
Baseboard
Actual frame may differ from example shown.
CUSTOMER-SUPPLIED MATERIALS — Baseboard, Ribbon Boards, & Wood Screws
Baseboards and ribbon boards are optional, but recommended, for buildings with roll-up sides. Materials for baseboards
and ribbon boards are
not included
and are
supplied by customer
.
ATTENTION:
Fasteners to secure boards to
building frame are included.
Recommended
lumber
dimensions shown; wider boards can be used if
desired. Counter sink holes for 1/4" carriage bolts if
bolt length is too short for board thickness.
BASEBOARDS
The baseboard, when installed properly, helps prevent the
ground posts from sinking into the ground when anchored.
Depending on the building, it also provides a surface to
attach struts or other building components.
ATTENTION:
Baseboards run the frame length along both
sides at ground level. Installation of customer-supplied
baseboard is described later in this guide.
RIBBON BOARDS
A ribbon board typically runs a few feet above the ground
along the sidewall. It serves as a mounting surface for the
u-channel that secures the main cover and roll-up portion of
the main cover.
MATERIAL DIMENSIONS
• Baseboards:
2" x 6" (minimum)
• Ribbon Boards:
2" x 4" or 2" x 6" (recommended)
