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What is horticultural glass?

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Quick Answer

Horticultural glass is a low-quality, less-expensive type of glazing. Unlike float glass, which solidifies on molten metal that creates a nearly perfect surface, horticultural glass often has marks and blemishes. These imperfections do not detract from its main use in greenhouses.

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Full Answer

Horticultural or greenhouse glass lets in more light than any other type of glazing, if it's kept clean. Plastic sheets become scratched and cloudy more easily over time. This type of glass allows the sun to warm the greenhouse to tropical temperatures, which, along with steady light, produces healthy greenhouse crops. Yearly maintenance checks for cracks and gaps between the panes and frame in the greenhouse ensures year-round growing success.

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