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Q&A Home

Lin from Penn Valley, Ca writes,

If I trench and treat the outside of the foundation must I treat the crawl space side as well?

Is it necessary to trench and treat both sides of the foundation? I realize it is important to treat the piers in the crawl space.


When using a product like Taurus SC, so long as you trench the outside wall of the foundation and the piers in the crawl space, you do not have to trench the inside wall of the foundation. 

Answer last updated on: 03/30/2015

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