Low-e window coatings ARE a passive solar option…

Yes, when you are looking for windows in your energy-efficient home Low-e is a possibility.

It used to be the rule when you decide on using passive solar as a heating option that Low-e window coatings were not an option. BuildingGreen.com has a different story. Alex Wilson says:

While hard-coat low-e is more durable than soft-coat, the emissivity isn’t as low, so these glazings don’t achieve as low a U-factor. On the other hand, they allow more sunlight to pass through, so they are usually better for houses that are relying on passive solar heating.

This is just part of the information he gives on this excellent article. Read the facts on Low-e coatings here: Window Performance – the Magic of Low-e Coatings


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