22
Revision date: 01.01.20
GROWSPAN
™
ROUND PREMIUM EXTRA TALL HIGH TUNNELS
Diagram may show a different length frame, used for
illustration purposes only.
INSTALL MAIN COVER (CONTINUED)
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 top cover is secured
in place.
7. Stretch the cover to the other end of the building and
repeat the steps to secure the cover in the U-Channel.
NOTE:
Pull the cover tight as the spring is inserted into
the U-Channel.
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 cover to
the first side.
Use the top channel of the Double Poly
Latch for this application.
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
top 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.
10. Once the top cover is installed and secured in the
U-Channel, attach single poly latch U-Channel to each
side of the frame using Tek screws.
Top Double Poly
Latch Channel.
RECOMMENDED FOR BEST RESULTS:
Attach a
ribbon board
(2" x 4" or 2" x 6")
to the rafters and then
attach the poly latch U-channel (102197) to the ribbon
board using
customer-supplied wood screws
.
NO RIBBON BOARD:
Attach one section of the poly
latch U-Channel to the side of the frame using Tek
screws. Attach U-Channel flush with the outside edge
of the end rafter at each end of the assembled frame.
Single
Poly Latch
U-Channel
with Ribbon
Baoard
Single
Poly Latch
U-Channel
with Ribbon
Board
