21 May '13, 11am

Energy Upgrades for Beginners, by @MartinHolladay at @GBAdvisor << Since he doesn't think about AC, see my comment.

If you can afford to hire an energy auditor, you won’t regret it. Not only will you then get a blower-door test Test used to determine a home’s airtightness: a powerful fan is mounted in an exterior door opening and used to pressurize or depressurize the house. By measuring the force needed to maintain a certain pressure difference, a measure of the home’s airtightness can be determined. Operating the blower door also exaggerates air leakage and permits a weatherization contractor to find and seal those leakage areas. and an infrared inspection — both of which are invaluable — you’ll get something even more important: an inspection by a trained expert who knows what to look for. And the energy auditor will help you answer the question, “What should I do next?”

Full article: http://www.greenbuildingadvisor.com/blogs/dept/musings/en...

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