How to Vent a Greenhouse

How to Vent a Greenhouse

• 1

  Hold the base vent in the location where you want to install it.

  Installing the base vents 6 inches above the floor base allows air to flow up and through the greenhouse.

• 2

  Cut the vent hole.

  You will be screwing the vent in, so don't cut the entire shape out. Use the jigsaw to remove the area within the screw markings. If you were able to trace this area onto the wall, great. If you weren't able to trace it, leave one inch between the screw markings and the vent hole.

• 3

  Screw the vent in with the drill.

• 4

  Repeat Steps 1 through 3 for the remaining three vents, putting one on each remaining wall.

  Placing a vent on each wall will maximize the ability of the greenhouse to pull in air. It won't matter what direction the wind is blowing; there always will be a vent facing it. For aesthetic purposes, try to measure and center the vent equally on each wall.

• 5

  Trace the outline of the exhaust vent on the upper back wall of the greenhouse. Mark the screw holes and trace the vent opening if possible.

  You might need the stepladder in order to reach the ideal spot, which is as high as you can go. An exhaust vent will allow the heated air and oxygen to escape and prevent the air from becoming stagnant at the top of the greenhouse. Stagnant air promotes disease.

• 6

  Use the jigsaw to cut the outline of the exhaust vent.

• 7

  Screw the exhaust vent in.

• 8

  Open the vents.

  You should always keep the exhaust vent open to create a healthy environment that promotes strong stems and reduces disease. You can alternate the side base vents depending on how cool the greenhouse gets. In the coldest months, you might only want to close vents at night to prevent frost from striking the plants. You should open at least one in the morning when the sun is penetrating the greenhouse.