
18. SEALING THE GREENHOUSE
When all the polycarbonate sheets are installed, take a tube of clear silicone sealant and seal all
the panels that fit into the aluminum tracks on the top, the bottom, the inside and the outside.
In this way, you can keep out most of the moisture from the end of the panels. If this sealing
process is not done, water may sit in the bottom and fill the inside of the panels and grow algae.
1. Unscrew the plastic nozzle on the tube of silicone sealant.
2. Cut the top of the tube.
3. Screw on the plastic nozzle again.
4. Cut approximately 1/8” off the end of the plastic
nozzle at a 30-degree angle.
5. Put the tube into the caulking gun. When using
the gun, squeeze the handle slowly.
6. Wherever the polycarbonate sheets are sitting in a
track or aluminum “ ”. Also seal the inside of
the “ ” on the ends and sidewalls because
greenhouse humidity runs down the panels into
the “ ” track.
7. Seal the vents before you slide them into place.
Seal the places where the panels fit into the door
frame bar and the “ ” under the above door
angle.
CAULKING / SEALING
• Seal the door frame bar where the base/sill
meets the door frame.
• Seal the inside of the base/sill
along the perimeter of the
foundation.
Do Not seal the
“ ”
to the base! Any
condensation in the polycarbonate
needs to be allowed out. If the
aluminum
“ ”
is tight against the
base, drill a small weeping hole.
Inside view
Outside View
Roof
– 36 –
C R O S S C O U N T R Y T R I P L E W A L L S E R I E S • G R E E N H O U S E I N S T R U C T I O N S
POL
YCARBONA
TE SHEET
Base
DO
NOT
SEAL
Содержание Cross Country Arctic Series
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