I'll try that.
Does it do any good to fill the holes in the floor where the plumbing and wiring comes in from the basement? There are holes in the toilet area, galley, powder room and washing machine area. Plus others I've never seem?
Well, it's never a bad idea to seal any penetrations in an RV - if anything for insulation purposes. RVs, just like a house will never be and should never be completely sealed. Bugs, including roaches can fit into a space as thin as a dime. I doubt sealing will have a lot of impact on bugs, but it will have a good impact on insulation. Cleanliness and creating an environment they don't like is the best inhibitor. Bugs like moisture and food. Remove those 2 things and they go elsewhere. American cockroaches, unlike German cockroaches, don't really infest. For the most part they like a really wet environment and probably after any food or just exploring. Kind of like most other beetles and bugs. German cockroaches on the other hand can cause an infestation issue. When using Advion I put a small dab on a piece of cardboard and put it someplace the cat won't get to, like inside a drawer, under the frame rail etc. Doesn't take much. Do this weekly for 2 months. As you get rid of adults, they may have laid eggs and you need to get the babies as well when they hatch.
