Greenhouse Conditions
Cooling
To maintain comfortable greenhouse
temperatures, you may need to keep some light out of the greenhouse.
Overheating problems are actually more common than underheating
problems in greenhouses. Even in the North, a late spring temperature
of 110° F has been recorded inside a greenhouse on a sunny
day.
You can use various methods to block some of the sun's rays.
These include:
- hanging commercial shadecloth (made of spun or mesh vinyls) inside
the greenhouse
- applying water-soluble shading compounds to glazing during late
spring
Remember that if you create shade to cut down on heat, your plants
will also receive less light, and may grow more slowly.
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