GROWSPAN
™
GOTHIC PREMIUM HIGH TUNNELS
10
108179_80_81_82_83_84H Revision date: 01.08.21
ASSEMBLE THE FRAME COMPONENTS
After the site is prepared and an inventory of parts is
complete, continue with the rafter assembly.
NOTE:
All rafter assemblies consist of rafter tubes and
purlin clamps. Consult the rafter diagram in the Quick
Start section of these instructions before and during the
rafter assembly process.
Assistance is required to assemble the high tunnel frame.
RAFTER ASSEMBLY
Gather the parts:
• Rafter pipe (166S027D)
• Rafter pipe (20GT166P3)
• Rafter pipe (20G166SS401D)
• Rafter pipe (166S064)
• End clamps (102856)
• Tek screws (FA4482B)
• Nut setter 3/8'' x 2-9/16" magnetic
END RAFTER ASSEMBLY
The end rafters include purlin end clamps and band
clamps. Install the purlin end clamps before the different
pipes of the rafters are connected. The band clamps for
the side struts are installed when the two (2) end rafters
are set onto the ground posts.
1. Select the seven (7) pipes needed to assemble the
first end rafter and arrange on a level surface.
2. Slide one (1) end purlin clamp (102856) onto the peak
rafter pipe and one clamp onto each leg pipe. Position
end clamps on the rafter pipes as shown.
3. Insert the swaged end of the rafter pipes into the plain
ends of the pipes to assemble the rafter.
4. Once the rafter is assembled, install a Tek screw
through the rafter pipes to secure each joint.
IMPORTANT:
To prevent damage to the cover, position
the Tek screws so the heads do not contact the cover
when it is installed.
5. Repeat steps to assemble the remaining end rafter and
set both end rafters aside.
Use a piece of duct tape to
hold each clamp in place if needed.
6. Continue by assembling the interior rafters. Interior
rafters are assembled exactly the same, except the
102856 end clamps are not used. Consult the Front
Profile diagram in the Quick Start Section for details.
ATTENTION:
Depending on building length and
available space, you may want to begin frame
assembly after constructing a few interior rafters as
opposed to constructing all interior rafters.
7. Continue by assembling the frame.
1˝
Tek screw
(20G166SS401D)
(166S027D)
(166S064)
(20GT166P3)
102856 clamp as seen from inside
the assembled frame.
102856
Clamp
