How to treat attic with foam insulation from dry wood termites
My attic roof has isocynene foam insualation. Pellets suspicious for drywood termite found in 3 places in the attic. What are my treatment options
Open Mar 14, 2019 - 08:08 AM
Mar 15, 2019 - 03:15 AM
The only way to spot treat Drywood termites is to find the kickout holes where the "frass" or pellets is falling from. You can then either inject these holes with D-Force or try saturing the wood with Timbor. Timbor can be sprayed or dusted onto the wood, and also injected into the kickout holes. In most cases, a small 1/8" hole may need to be drilled into the kickout hole to widen it to allow for the injection of the D-Force or the Timbor. In either case, permeating the galleries of the termites within the wood is critical. If you don't get the materials into the galleries, you won't kill the termites.
The only other option is tent fumigation. In my opinion, no other treatment works. The Electrogun, Orange Oil, etc are totally overated and not worth the money. Either direct injection of chemicals into the kickout holes to kill them or fumigate it.
There may be lots of kickout holes, so this may take some time. Be patient and you might just solve the problem.
Oct 07, 2019 - 05:07 AM
Nothing has changed as far as the application and aeration requirements of Vikane gas. I would contact a company that has a lot of experience in dealing with foam. I have not heard of companies not fumigating because of foam. A longer aeration period would be required.
Dec 13, 2022 - 01:21 PM
I have not heard of companies refusing to perform fumigation on structures where foam insulation is present. I would suggest contacting other reputable companies in your area (preferably family-owned) and get a second or third opinion. In my experience, Large National companies want easy jobs, they don't like more difficult jobs. Smaller more family oriented companies are more than likely to have more experience and be able to do the job. It sounds like this company is concerned about aeration of the Vikane Gas from the foam. But the only way to know is to get other opinions and ask questions. Let me know how this turns out. Ron D.