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29
GROWSPAN
™
GOTHIC PRO GREENHOUSES AND SYSTEMS
Revision date: 06.20.18
The drop-down curtain requires a ribbon board to secure its
upper section and a baseboard to secure its lower section.
The materials for these components are not included and
are
supplied by the customer
.
BASEBOARDS AND RIBBON BOARDS
The example above shows the required ribbon board and
baseboard as attached to the frame.
ATTENTION:
Consult the Main Cover Details diagram in
the Quick Start section of this manual to determine where
to install the ribbon board.
The ribbon board consists of two runs of material; the first
is a 2" x 4" or 2" x 6" board attached to the building frame
and the second is a 1" x 4" board attached to the first
board. These boards, when assembled properly, provide
a channel that secures the curtain when it is in the up or
closed position. Boards are secured to the frame using the
supplied 1/4" x 4" carriage bolts and to each other using the
FA4652 supplied fasteners.
The diagram below shows a customer-supplied ribbon
board as attached to the frame.
Ribbon Board
Baseboard
FRAME CHECK AND CURTAIN PREPARATION
1. Attach the second board to the ribbon board using
FA4652 wood screws as shown in the diagram to the
left.
2. Verify that the baseboard is installed properly at ground
level. The baseboard must be level for the drop-down
curtain to install and function properly.
3. Gather the boards needed for the retaining board of the
baseboard. See diagram above.
4. Collect all drop-down curtain components and continue
with the curtain installation.
A customer-supplied baseboard and retaining board are
also required to attach the curtain's lower edge. See the
exploded view that follows.
The baseboard runs the length of the frame at ground level.
The retaining board secures the curtain to the baseboard.
The baseboard and retaining board are supplied by the
customer.
Fasteners (1/4" x 4" carriage bolts and FA4652 wood
screws) are included. Depending on board width, use 2
carriage bolts per rafter connection for the baseboard and
ribbon board. Evenly space the wood screws at 24".
Rafter
2" x 6" or
2" x 4" Board
1" x 4" Board
FA4652
Wood
Screws
1/4" x 4"
Carriage
Bolts
U-Channel
End Panel of Shelter
Curtain
Panel
Ground Level
Baseboard and
Retaining Board
Secure
u-channel to
ribbon board
using FA4652
wood screws
spaced at 16"
on-center.