Day: May 22, 2012

Can Houses be “Too Insulated ” or “Too Tight”?

Tight houses need mechanical ventilation to ensure a supply of fresh air to keep people healthy; and existing houses should not be tightened without assessing whether the existing combustion appliances have an adequate source of combustion makeup air.

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HVAC & Building Science Training

Building Science + HVAC Training & Certification We’ve been working in the energy efficiency field since 2002. We’re not just teaching from a textbook, we’re

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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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