Frost Pockets - Page 2

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Sep 1, 2004

But since cold air flows downhill like water, it can also be diverted — and even halted — by terrain features such as rock outcrops, thick hedges, earth berms, or dense stands of trees. That fact has not been lost on farmers, vineyard growers and gardeners who have taken the hint and created artificial barriers to divert the cold air flow around their fields and plants. These frost dams, are most often dense collections of shrubs and low conifers with tight fencing, although buildings will work too.

Frost Dams Can Protect Sensitive Crops From Damage

While artificial frost dams are generally considered for agricultural or horticultural protection, the concept can also be used in landscaping around homes and outbuildings to reduce or increase cold air pooling around them. By diverting cold air drainage around a home, for example, a few dollars each year may be saved in heating costs. And in the right location, controlling cold air drainage toward the home could funnel cooler air around it and reduce the summer air-conditioning bill.

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