15
GROWSPAN
™
ROUND PREMIUM HIGH TUNNELS
Revision date: 10.25.21
INSTALL MAIN COVER
Gather the parts:
• Main cover
• Ropes long enough to reach over the frame (provided
by customer)
• U-Channel spring
• Box cutter or utility knife
Assembly Procedure
After the poly latch U-Channel is attached to the frame,
unpack the main cover and pull into place. Ropes or straps
are typically used to pull the main cover onto and over the
frame.
WARNING:
To prevent damage to the cover and to
prevent serious personal injury, DO NOT attempt to
install the main cover on windy or stormy days.
1. Unpack the main cover and position it at the base along
one side of the frame.
2. Make small holes along the edge of the cover at evenly
spaced intervals and tie rope to the cover. (The length
of the cover determines the number of holes that are
needed to attach the ropes.)
NOTE:
The ropes must be long enough to reach over
the top of the building to the other side. Long buildings
will require additional ropes to prevent tearing the main
cover when it is pulled into place.
3. After tying the ropes to the main cover, throw the ropes
over the top of the frame and pull the cover into place.
Cover must be centered side-to-side and end-to-end.
IMPORTANT:
To prevent damage to the main cover
during installation, additional personnel and lifts may be
needed.
Shelter shown above may be a different length than
actual shelter.
4. Once the main cover is in place and centered on the
frame, begin at the peak of one end rafter and install
the wire spring into the U-Channel to secure the cover.
ATTENTION:
Center the main cover front to back and
side-to-side to ensure that enough cover material is
present to lock into the U-Channel.
The excess cover
along each side is rolled up when the roll-up side
assemblies are installed.
The rope can remain in place to temporarily secure
the cover if needed. Remove the ropes as the cover is
secured to the frame.
Photos show installing the spring into the U-Channel on
the outside of a frame. The process is the same for the
U-Channel attached to the top of the end rafters.
5. Continue adding the spring into the U-Channel at the
top of the first end rafter. Ensure that an even amount
of the cover is exposed and maintained along the edge
of the frame as it is attached.
NOTE:
The cover material is cut longer/wider than is
required to cover the frame. For easier anchoring, allow
approximately 10" to extend past the edge of the end
rafter as the cover is anchored in place.
6. Continue down both edges of the first end rafter
until the entire length of the end of the main cover is
secured in place.
7. Stretch the cover to the other end of the building and
repeat the steps to secure the main cover in the U-
Channel.
NOTE:
Pull the cover tight as the spring is inserted into
the U-Channel.
