Colorado Green Building Post

July 2, 2010

Weatherization Underground: Crawlspace Retrofit

Filed under: New,Weatherizing and Retrofit — Tags: , — uswx @ 5:02 am

Crawspace retrofit is literally the low hanging fruit of energy efficiency. Three major energy savings strategies are seal ductwork, air seal holes in the building envelope and create a warm crawl space by insulating the foundation and adding a vapor barrier on the ground. This keeps floors warm, prevents pipes from freezing, and brings the hvac system inside of the thermal envelope.


Jordan Latva rolls out an R-11 FSC fiberglass roll faced with Foil-Scrim-Craft which reflects radiant heat and can be left exposed in many cases.


A major improvement to home performance is achieved by sealing leaky duct-work and Colorado has some of the leakiest ducts in the country. This “panned” system uses building framing to form part of the duct system.


Colorado Region 9 Weatherization Technicians Jordan Latva, front, and Ruben Avalos wait as their duct sealing job is inspected in the crawl space of a Lakewood home.


Ruben Avalos climbs out from the crawl space as Jordan Latva peels off his protective jumpsuit after completing work on the home.


Latva and Avalos relax and cool off after peeling away their protective suits and heading back to Veterans Green Jobs home base.

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