Tag: Manual-D

Developments in Green Construction

120,000 homes were “officially” evaluated by HERS raters in 2010 – a 7% increase from 2009. Believe it or not, this number represents 41% of all new homes built in 2010!

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How to Determine Friction Rate

Friction Rate The friction rate tells us how much friction our ductwork should produce, per 100’, so that we consume the rest of our available

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Attic Insulation Q&A

There are three main types of insulation – fiberglass batts, blown in fibers (cellulose or fiberglass), and spray foam. They are all commonly used to insulate attics.

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