Cat urine odor in crawlspace
Hey guys would like some feedback on how to best address cat urine odor in our crawl space. History: NC house built in 1981 remediated in 2016 due to water leaks causing mold. Hand sanded all boards in crawl space discarded porous items ect.. Vapor Barrier 20Mil polyethylene encapsulated entire crawl space with Sante Fe DU unt. Two family members with chronic illness so trying to address the root cause of the problem. As we know there appears some controversy on what exactly is causing the odor. Is it the decay from the soil contaminates triggering a ammonia smell due to a rising ph well above 7 ?? Or is it the material of the vapor barrier itself (polyethylene) when it becomes weak exposing the cord resulting in the smell.There appear to be two options. 1. Install a exhaust fan in the crawl space to eliminate the odor but not the bacteria decay that could be causing our symptoms which are teary eyes, dry noses, & a rash. Cost approximately 750.00 dollars installed. Option 2 : Remove our current vapor barrier & install a MBR (Moisture radiant Barrier) aka Radiant Barrier Insulation Liner which (supposedly) would eliminate/eradicate the bacterial decay that is causing the ammonia which may be entering into the house triggering our symptoms. Approx. cost $5500.00 . In closing addressing the root cause is my goal. The question to the group will the new radiant barrier insulation liner eliminate the smell in conjunction with the bacterial decay ? Hopefully the end result would be to completely eliminate our symptoms. I would most appreciate any thoughts or suggesstions given the current situation. Thanks Guys !!!
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