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Charley's Greenhouse
17979 State Route 536
Mt. Vernon, WA 98273
1-800-322-4707
Fax 360-873-8264

Call Center Direct Line
360-428-2626

Retail Store Direct Line
360-395-3001

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Secrets To Success

The secret to success is the correct combination of ventilation, shading and misting.


Ventilation

Use a ventilation system to automatically protect your greenhouse plants from withering heat buildup. No need to manually open and close vents, trying to outguess the weatherman!

Choose non-electric Solar-Powered Vent Openers (see Vent Opener and Design Guide) or choose an electrical thermostat controlled fan system for worry free operation. The thermostat turns the system on at the temperature you select. The fan expels hot air, and fresh, cool air is drawn in through the shutters. A fan speed control enables you to adjust the amount of airflow to suit the seasons. A motorized shutter is wide open when on and held closed when off. Select one of our ventilation systems or build your own system from components.

Caution: Ventilation alone cannot completely cool a greenhouse. Shading is also required. Additional cooling is possible with a misting system or evaporative cooler.

See our ventilation products.

Shading

Install shading to shield the greenhouse or sunroom between 9 a.m. and 5 p.m. Severe western exposure may require shading until 7 p.m. Shading should cover the roof and at least the upper half of the south wall. The amount of shading needed varies depending on your local climate, greenhouse design, and light requirements of your particular plants. Use the least amount of shading necessary, because excessive shading can slow plant growth or cause plants to “reach” for more light.

See our shading products.

Misting

Ventilation and shading will prevent the greenhouse from seriously overheating, but it is evaporation of moisture inside the greenhouse that will actually maintain a comfortable temperature. Evaporating water soaks up heat like a sponge, because heat is used when water changes from a liquid to a gaseous form. Good air circulation from fans increases evaporation. The amount of moisture necessary to cool the greenhouse will vary considerably depending on the amount of ventilation and shading provided, your local climate, and daily weather changes.

See our misting products.