A C wasp screen

Just remove the cover and glue screen on the inside of the shroud if you want. As long as you keep it clean it should work fine.

Go down to the hardware store and get a roll of window screen material. Cut it into the shapes that you need then use exterior grade glue or caulking to attach the material to the inside of the shroud.

When I take my travel trailer in for its yearly inspection, I will see if the service department will do this for me. I am a 64 year old female and I am not getting up on the roof. I broke every bone in my wrist about ten years ago when I fell of a ladder. I was trying to save money by repairing a piece of siding that had come loose. My neighbor's dog was chasing a chicken that had gotten in their yard and the commotion caused me to lose my balance. Thank you for your great suggestions. I wonder why they don't install a screen like you have suggested when they make the air conditioners.

Wasps cannot get into your rig from the A/C unless something is wrong.

SusanDallas wrote:
When I take my travel trailer in for its yearly inspection, I will see if the service department will do this for me. I am a 64 year old female and I am not getting up on the roof. I broke every bone in my wrist about ten years ago when I fell of a ladder. I was trying to save money by repairing a piece of siding that had come loose. My neighbor's dog was chasing a chicken that had gotten in their yard and the commotion caused me to lose my balance. Thank you for your great suggestions. I wonder why they don't install a screen like you have suggested when they make the air conditioners.

They should have no problem taking care of this. You probably will not be the first person to ask about it.

I do not think that wasps in the AC is a big enough problem compared to insufficient air flow.

Since the AC companies try to build as small a units as possible for the top of the TT. Unrestricted air flow would be their first concern and screens clog easier than vent holes.

Any mechanical devise would add cost which is not likely in the RV industry, unless it is sold as an option.

I intend to add high grade stainless screen to my AC shroud. I will probably remove some of the plastic grids to ensure it still gets good air flow. I think that screen will keep the wasps out and be easy to clean with a hose and nozzle from a distance.

I've never noticed any performance degradation with the AC after adding the window screen. There's not a ton of air being exchanged under the shroud really. If airflow is a concern then there are screens that advertise as better flowing. A lot of manufactures call them transparent or high visibility screens. The holes are made a little more precisely which allows more air to flow through them. Screens can get plugged up with dust and dirt after being up there for a while. Just hit them with the water hose to clean them off and keep the air flowing.

Four or five years ago wasps built a rather large nest on the condenser fan blade on my roof AC. It was so big that when I turned the AC on it shook the whole trailer. I cleaned it off and installed screen wire on the openings in the AC cover. I cut the pieces to fit the openings and attached them to the housing with silicon caulk. I have not had a wasp problem since.