Ridge Vents on Greenhouse Roof

If you’re planning on building a new greenhouse or sunroom, choosing the structure type, critical components and the transparency of your roof will dictate whether your experience will be a happy one or a costly makeover.   Why is that?…

Ridge Vents..

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Just exactly what are ridge vents?

Ridge vents are like operable windows… they are not mechanical exhaust fans.. its basically an aluminum frame much like a framed window with hinges designed to open up either manually with a crank, or a motorized actuator controlled with a thermostat or with a solar operated vent opener. Ridge vents are usually placed at the very top of the ridge (peak of the roof) in place of a fixed panel of glass. They can generally fit into any aluminum structural bar system or wood framed greenhouse or sunroom….of any rectangular configuration design, regardless of manufacturer. Aluminum ridge vents are custom sized.

Let’s mention a few important facts…about ridge vents
Glass roofs are impressive, they offer lots of light, aesthetically, they look very clean and stylish on just about any home style. If you’re very fond of sunshine then by all means move ahead. Here again the choice of roof ultimately depends on how you want to use your new solar space…. and how is that?

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Just remember that with sunshine comes heat. Our years of experience have thought us one important thing about glazed roofs, heat build up will always occur in any glazed sealed environment, regardless of high performance glazed coatings such as Low E and super Low E…super max E….  whatever you wanna call it….

These types of glazed coatings do have their place in many applications. Even on greenhouse and sunroom roofs. However, all coatings do, is limit the degree of UV infiltration… It does not prevent or block UV rays 100% nor does it prevent solar heat gain. Trapped solar heat gain inside a greenhouse or sunroom builds up under a glazed roof. If there is no escape for hot air to go, the temperature will increase during daylight hours. Especially if its in direct sunlight, then of course, heat gain and heat accumulation dissipates during the evening hours.

Solar heat gain…without ridge vents

If you’re planning on a lot of planting and growing, or planning a nicely built sunroom addition for your home, most plants like heat and light but they can only take so much of it and that goes for people too….Too much heat will eventually wither and wilt your plants into a non growth pattern.
Greenhouses and sunrooms that get unbearably hot, especially in the summer, is no fun to enjoy.

The best atmospheric condition for plants and us humans is a circulating ambient movement of air… Yes,… greenhouses and sunroom’s do get warm but warm is OK as long as its ventilating. Hot air rises and accumulates at the very top of a glazed roof … hot air needs access to escape as low moving cool air enters through doors and operable windows; this effect is basically called convection.

Greenhouse Convection…. The upward motion of a body of air which transfers heat from ground level to the upper part of the atmosphere.

As convection or transfer of accumulated warm air moves upward, the cooler air below replaces the hot air as the warmer hot air escapes through the ridge vents… as a result this constant displacement of warm air in a ventilated glazed environment keeps the temperature relatively constant and stable as opposed to getting unbearably hot…in a sealed environment.
It is for these reasons why ridge vents should be incorporated in every glazed roof application… for all greenhouse and sunroom applications

and that’s the rest of the story.

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The ridge vents illustrated on this page are examples of after market ridge vents that can be ordered, retrofitted and installed on most greenhouse and sunroom frames. There built from aluminum material and are designed to last and operate very easily. Ridge vents are probably one of the best and most important upgrades any greenhouse and sunroom can have.
Ridge vents are available with double glazed glass as well as single glaze, painted finishes and customized to fit any type aluminum or wood frame structure.
For more information please email or contact us at your convenience.

For more information and photos click  ridge vents


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GDS The Greenhouse Guy Jun 25, 2017