Generally they're after (or think they're after) insects and do that on
basis of noises/sounds.
So, the first step is to ensure you don't have an infestation of
something in the siding/structural materials.
After that, other causes of noises can apparently confuse them into
thinking "there's food!" -- vibration transmitted from power lines
mounting terminals, wind, etc., etc.,(+) ... Lastly it does seems that
from what we can sense they're simply perverse in going at an area for
nesting--we had a spot under eaves in fraternity house when was at uni
that was a favorite. Only final resolution we ever found on it was to
fabricate a screen barrier over the area hung from the soffit/gutters.
(+) Utilities have difficulty w/ power poles in some areas -- it seems
that they can vibrate at particular frequencies that are just
irresistible to them. The big pileated buggers were actually topping
poles in E KS at some regularity. EPRI (Electric Power Research
Institute) has even sponsored research on ways to discourage them...
First, make sure you don't have a bug infestation. Carpenter ants are big in
New England. If everything is clean, he probably likes just likes the sound
(they'll even drum metal). The best you can do, short of aluminum siding, is
to shoo him away. If he isn't going after food, it's probably not that
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.