Wasps nesting underneath the gable wood trim

At the gable end of the building, there is a piece slanted wood trim at the top, near the roof line. There is a gap behind the wood trim, and wasps are nesting there.
In a different section of the gable end, toward the rear of the building, there were carpenter bees late in the spring, and I got the condo management company to dust the area and put a screen over the gap. They also dusted a section toward the front because I saw wasps nests in this section, but the wasps are currently active there.
Wondering if I need to be insisting that condo management do something about the wasps? My building is around 20 years old, and I don't think this is anything new. They aren't getting into the house or attic that I'm aware of. Seems to me if they spray or dust it needs to be done regularly, unless maybe they put up a screen like they did for the carpenter bees. ***What do you think needs to be done?***
BTW, The screen they used for the the gap in the section that had carpenter bees was made of metal (since Carpenter bees can't bore through metal). Wondering if this is a hazard for attracting lightening during an electrical storm, since it is relatively close to the roof line?
Thanks,
J.
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snipped-for-privacy@verizon.net wrote:

If the wasps are out of the way I would just let them be, they are extremely beneficial insects...don't recall ever hearing metal patches ever being a problem with lightning.
Lar
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wrote:

Are they Mud Dauber Wasps? Do they make a mud nest attached to the eave? If so, just wash it down with a hose.
Your fear of lightning on such small metal area is unfounded.
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The nests are made of paper.

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On Thu, 09 Aug 2007 20:28:01 GMT, " snipped-for-privacy@verizon.net"

If the wasps are not near people, a door, or place where they may be disturbed just leave them alone. They will be capturing spiders which there are usually lots near the end of summer. However, if the wasps are a threat, wait 30 minutes past sundown and spray the nest with hornet/wasp killer. The next day cautiously check the area. There should not be any more wasps on the nest then you can knock it down. Carpenter bees are less threatening and you can spray and plug their hole any time.
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