Article: Keep the heat inside with outside insulation.

It makes sense: Wrap your home in plastic, and you're bound to keep heat in and drafts and cold air out. A new idea? Well, not really.

Exterior insulation has been used for some time on commercial buildings: the tall white hotel with the rough finish; the newly stuccoed office building; and the bank with the "sculptured" look. they may all have been insulated with a layer of polystyrene. Although exterior insulation has had a reputation for being expensive, more recently the cost of materials has made it competitive with brick and stucco for use on concrete structures. (It's not economical for use over wood.) And now some two dozen manufacturers offer it for ...

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