13
GROWSPAN
™
GOTHIC PRO GREENHOUSES AND SYSTEMS
Revision date: 05.29.19
18. Secure the purlin pipe joint with a Tek screw.
19. Repeat the above steps as needed to stand and secure
the remaining interior rafters and purlins to complete
the frame assembly.
20. Slide a band clamp onto each leg of the remaining
end rafter, secure the rafter to the ground posts, and
attach the purlins to it. Verify that the end clamps are
positioned with the nut and bolt to the inside of the
assembled frame. Refer to the Quick Start section and
previous diagrams if needed.
NOTE:
If the last end rafter is plumb and the purlin
extends beyond the end of the rafter, cut the last
section of purlin pipe to the required length.
FRAME ASSEMBLY (continued)
Dashed line shows
ground level.
Frame length may differ from actual frame.
21. Once all rafters are set and all purlins are in place and
secure, return to each pipe splice of each purlin and
verify that a Tek screw is installed. Install a Tek screw if
needed.
22. Remove any temporary bracing (if needed) and install
the baseboards and the side struts.
BASEBOARD INSTALLATION — RECOMMENDED
After installing all panels, installing a baseboard is
recommended.
Minimum size is 2" x 6". Length
determined by building length. Materials for
baseboards are supplied by the customer.
Fasteners to secure baseboards to frame are included
with building.
A baseboard (2" x 6" minimum) helps keep ground posts
properly seated after anchors are installed.
BASEBOARD INSTALLATION (RECOMMENDED )
Gather parts:
•
2" x 6"
(minimum) treated or recycled plastic lumber
(supplied by customer).
• 1/4" x 4" Carriage bolts and 1/4" Nuts (included)
The following procedure describes one way to install the
baseboards. Size and type of baseboard may require
additional installation steps.
Ground
Level
Inside of
Shelter
Outside of
Shelter
ATTENTION:
Never attach two boards to the same ground
post.
All baseboard splices should be between rafters as
shown above.
Use a short section of baseboard to secure separate
baseboards at a splice.
Customer supplies all materials
to secure all baseboard splices.
General installation steps:
1. Position baseboard as shown and clamp or hold in
place against ground posts.
2. From inside the greenhouse, drill 5/16" holes through
ground posts, panels, and baseboard. (Ground posts
may come pre-drilled.)
3. Secure with 1/4" x 4" carriage bolts and nuts. Insert
from outside.
Depending on baseboard dimensions, countersink bolt
holes in baseboard as needed to allow bolts to reach
through all components.
4. Continue by installing side struts. See next page.
