Crawl space weatherization can help fight global warming by reducing carbon emissions more than almost any other single home improvement project. Blog Series: Energy Efficient Homes & Building a Sustainable Economy
May 1, 2021
Crawl space weatherization presents a major opportunity to reduce a home’s carbon footprint and help combat global warming. Crawl space weatherization can reduce carbon emissions more than almost any other single home improvement project. In fact, if all the crawl spaces in the US were weatherized, US carbon gas emissions would be reduced by approximately 0.85% annually.
What does it mean to weatherize a crawl space? The recommended actions include sealing and conditioning vented crawl spaces according to research published by the National Renewable Energy Laboratory in 2013.
But how much energy does it really save? Well, Southern California Edison determined in a recent study that crawl space weatherization can reduce your HVAC energy consumption alone by 18-32%. They also point out that, as of 2008, about 26 million homes have crawl spaces that need to be weatherized. According to U.S. Energy Information Administration, HVAC systems consume 51% of the average home’s energy use, the average home uses 10,649 KwH of electricity and each KwH emits 0.99 lbs (pounds) of carbon into the atmosphere.
The model below demonstrates the energy savings potential of weatherizing crawl spaces.
This post does not analyze the carbon footprint reduction that results from preventing wood rot and replacement of baseboards. Nor does this post examine the health benefits to the individual or the community which are expected to be significant. Coming soon!