Cut a slit in the bottom edge so the plumbing boot will fit around the pipes.
Seal for air conditioner pipe into siding.
Duct seal or similar product is a common solution.
And if you caulk carefully to prevent any air infiltration they are unlikely to be attracted to that spot.
Sometimes they allow pests easy passage into the home.
Solid wood cut to shape cut a hole in a circle or square of regular 1x lumber with a hole saw exactly the size of the pipe then cut it in half and attach each side around the pipe also works rodents can chew though wood also but it takes them quite a while and if so you can hear them in time to make a metal patch before they can get in.
Duck brand window air conditioner insulating strip seal 2 25 inch x 2 25 inch x 42 inch 284423 4 5 out of 5 stars 512 silicone seal strip 8m 26ft door strip bottom for doors silicone sealing sticker adhesive for doors and windows gaps of anti collision silicone 45mm transparent.
Using scissors or a razor knife cut the roof boot to fit around the hole and to match the width of the piece of siding photo 2.
It is nontoxic paintable and will stay flexible.
It s fairly easy to remove and reapply or rework.
Outdoor insects and rodents crawl through the hole and into the home.
Air conditioners provide cool air to homes and add to comfort.
Acrylic and latex based caulking.
It stays soft and flexible so it handles expansion contraction well.
Kneed it until malleable then mold it in and around the hole like clay.
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2 load a caulk gun with exterior grade caulking.
When an air conditioner is installed the installer drills a hole in the wall so that refrigerant hoses can reach the compressor.
Dust the area around the pipe with an old paintbrush or handheld duster to remove dirt dust and other debris.