13
CLEARSPAN
™
HIGH TUNNELS
Revision date: 05.08.12
Measure the desired height (15' maximum) to identify
1.
the top of the roll-up side and mark the location on the
end rafter.
Move to the other end of the frame and repeat Step 1.
2.
Stretch a chalk line between the marks and snap to
3.
mark the location of the U-Channel.
To begin,
4.
cut one 8' section
of double U-channel to
6' and attach the 6' section to the rafters using Tek
screws. Attach the poly latch U-channel flush with the
outside edge of the end rafter. Use the chalk line as a
guide to position the U-Channel.
NOTE:
Cut the remaining 2' section into 8" pieces to
use to splice the longer double U-channel sections
together.
The insert shows how to splice the joint between two
sections of double poly latch U-Channel. Use Tek
screws and an 8" section of double poly latch channel
and place the channel on the back of the poly latch (or
to the inside of the frame). Install Tek screws through
the double U-Channel from the outside of the frame
and into the 8" splice section as shown in the previous
diagram.
Double poly latch is attached along the sides of the
shelter only. Single poly latch is attached to the top of
each end rafter.
Continue by attaching the 8' double poly latch sections
5.
to the rafters and work toward the other end of the
frame. Cut the last 8' section of double poly latch to the
required length so that it is flush with the outside edge
of the end rafter.
ATTENTION:
Use the remainder to finish the other run
of double poly latch U-Channel.
Repeat these steps to secure the double U-Channel to
6.
the other side of the frame.
After attaching the double poly latch to the sides of
7.
the frame, measure
between the two runs of double
U-Channel at one end rafter
to determine the length of
the single U-Channel. See the dashed line below.
Cut the single poly latch U-Channel (if needed) and use
8.
Tek screws to attach the single U-channel to the top
edge of the end rafter. Space screws every 16".
Insert above shows the installation of poly latch U-
Channel on top of an end rafter. The poly latch U-
Channel will bend with the curve of the rafter as it is
attached. Dashed line shows where to install the single
poly latch U-channel.
Repeat the steps to install the single U-Channel at the
9.
remaining end of the frame.
Continue with the installation of the main cover.
10.
INSTALL POLY LATCH U-CHANNELS (CONTINUED)
Tek Screw
Double poly latch
channel along the
side
Single U-Channel
on top of end
rafter
8" Splice Section
Tek Screw
Diagram may not be to scale.
Single U-channel
Location of
double U-
channel
15'
Ground Level
Double arrow
shows the
distance from
the bottom of
U-Channel to
ground level.
Chalk Line
