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Robert from Max Meadows Va writes

Do I need to remove the Insulation in crawl space to spray bora care?

I had my crawl space sprayed by a contractor which stopped the wood fungus with Bora-Care,but not before it weaken the floor joist.I have a lifetime guarantee from the pest contractor. I have since had all floor joist sister ed with new floor joist.(not treated) they suggest we spray the new joist just for good measure, but they tell me we do not need to remove the insulation between joist.that the fungus would only grow up to the insulation anyways. Does that sound right.


No, it does not sound right.  The only way to properly protect all wood under the crawl space is to remove the insulation, treat all exposed wood, and then put the insulation back.  Fungus is not your only issue in a crawl space.  There is also usually the threat of termites and powder post beetles as well.  If i was taking the time to treat under the crawl space, if it were me, i would take the extra time and make sure it was all treated adequately.

Answer last updated on: 10/10/2012

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