13
GROWSPAN
™
GOTHIC PRO GREENHOUSES AND SYSTEMS
Revision date: 06.06.18 113836_37_38_39
16. Secure clamp and purlin pipe. Secure purlin pipe joint
using an FA4482B Tek screw.
17. Repeat the above steps as needed to stand and secure
the remaining interior rafters and purlins to complete
the frame assembly.
18. Slide a band clamp onto each leg of remaining end
rafter, secure rafter to ground posts, and attach purlins
to it. Verify that end clamps are positioned with nut and
bolt to the inside of assembled frame. Refer to Quick
Start section and previous diagrams if needed.
NOTE:
If last end rafter is plumb and final purlin
pipe extends beyond end of rafter, cut purlin pipe to
required length.
FRAME ASSEMBLY (continued)
Dashed line shows
ground level.
Frame length and design may differ from actual frame.
19. 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 screw if
needed.
20. Remove any temporary bracing (if needed) and install
customer-supplied baseboards and the side struts.
BASEBOARD INSTALLATION (RECOMMENDED)
The baseboard (strongly recommended) is supplied by
the customer and is attached at ground level along both
sides of the frame. Baseboards stabilize ground posts and
prevent frame from working into ground when anchored.
Attach baseboards to frame on the outside of the ground
posts. If you are not using baseboards, skip this section.
Gather parts:
• Treated or recycled plastic lumber (supplied by
customer).
• 1/4" x 4" Carriage Bolts and 1/4" Nuts
NOTE:
The following procedure describes one way to
install the recommended baseboards. Size and type of
the baseboard chosen may require use of alternative
steps. When properly installed, baseboards run the
length of frame on both sides.
NOTE:
Boards should be at ground level or slightly into
grade to prevent the shelter from sinking and to create
a seal along the bottom. After installing baseboards,
continue with these instructions.
Ground
Level
Inside of
Shelter
Outside of
Shelter
Outside the frame, attach baseboard to ground posts using
1/4" x 4" carriage bolts (FAH009B) and (FALB01B) nuts.
Continue adding baseboards to complete first run. Splice
between posts as shown. Use a short section of baseboard
to secure separate baseboards at a splice.
If the recommended baseboard (customer-supplied) is not
used, secure the required diagonal struts to ground post
using an FA4484B Tek screw or other customer-supplied
fastener. Installation of the diagonal struts is described on
the next page.
