I installed a 3/8” wide x 3/16” high silicone weatherstripping continuously around the: window sashes, access hatch sashes and screen door opening.  This gasket will close against the trailer’s window / door gasket that were installed when the windows and doors were rebuilt.  I thoroughly cleaned the aluminum with xylene to insure that the gasket’s adhesive backing tape would successfully adhere.  These gaskets were left over from a commercial project and are ideal for this application.