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Energy saver | department energy, U.s. department of energy recommendations on how to save energy. includes tips, descriptions of products and services..
U.. green building council, The u.s. green building council (usgbc) is transforming the way we design, build, maintain and operate our buildings, homes and communities..
Environmental news information | mnn – mother nature, Mother nature network is the world’s leading source for environmental news, advice on sustainable living, conservation and social responsibility..
Solar decathlon, The .. department energy solar decathlon collegiate competition 10 contests challenge student teams design build full-size, solar.
Solar rating & certification corporation home page, Welcome srcc™, member international code council® family companies, primary purpose provide authoritative performance ratings.
Roof – wikipedia, A roof part building envelope. covering uppermost part building shelter protection animals weather, notably.