Duct sealing sounds like big government at its best!! Is there any value other than satisfying the permit requirement?
Well… we might be prone to agree, but… several studies have proven that the average 15-30 year old residential duct system leaks about 30% of its air volume. It has been our experience that this research is accurate for our area. Many factors have contributed toward excessive duct leakage including poor construction standards in the 60s, 70 & 80s and the low bid process. An unexpected benefited of duct sealing is improved indoor air quality. For decades duct systems have been polluting homes with dirty outside air as well as dirty attic air, both packed full of allergens. For certain, a lot of energy is being wasted throughout California, which is why the State implemented the Duct Test & Seal Standard. Is it worth it? Well that depends. How much can you afford to overpay the power company?
