14
GROWSPAN
™
ROUND ECONOMY HIGH TUNNELS
Revision date: 01.01.20
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.
WEAR EYE PROTECTION WHEN INSTALLING
THE WIRE SPRING!
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 installation,
allow approximately 10" to extend past the edge of the
end rafter as the cover is secured 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 wire spring is inserted
into the U-Channel.
WEAR EYE PROTECTION!
8. After the cover is stretched end-to-end and secured
using the spring and U-Channel, move to one side
of the frame and repeat the steps to anchor the main
cover to the first side.
Begin at one end of the U-Channel and work toward
the other. It is also possible to begin at the middle of
each side and work toward each end.
NOTE:
Maintain an even length along the side. The
final stretching of the cover takes place when the last
side is secured.
9. After securing the first side, move to the remaining side
and secure it in place.
IMPORTANT:
DO NOT REMOVE TOO MUCH OF THE
EXCESS COVER MATERIAL AT EACH END.
Some
excess main cover material–the material that extends
beyond the end rafters–should remain in place. If the
main cover needs stretched in the future, remove the
spring from the U-Channel, grasp the excess material,
pull the cover tight, and reinstall the spring.
The excess material along the sides is rolled up in the
roll-up side assembly.
10. Once the main cover is installed and secured in the
U-Channel, continue with the
Install the Roll-up Side
Assemblies
procedure.
Roll-up Portion
of the Cover
