RV Screen Removal:
Open the RV or Motor Home window and screen. Press upward on the screen frame top, pushing the frame deeper into its pocket. This will compress the springs and allow the screen frame bottom to rotate out of the bottom track. Be careful with the plastic screen springs, so that they can be re-used. Working with the screen frame on a flat surface, loosen the screen spline at a corner using long nose pliers. When the spline has been loosened, it can be pulled out intact. Be careful not to damage or sever it. The damaged screen mesh will then pull out easily.
RV New Screen Installation:
There is a tendency to spline screen too tight, causing the side to bow inward. Two ways to avoid this are: Order a complete new screen assembly, or block the inside edges of the frame with a flat wood or metal strips nailed to the worktable surface, so that the screen frame sides remain parallel. Cut a piece of screen mesh about two inches larger than the maximum screened area. Center it over the area to be screened. Using the old spline and a narrow wheel screen roller, spline the screen into the screen frame. Keep adequate tension on the screen as you go, but make sure not to cut the mesh with the roller. After the straight section is in, start working around the remainder of the frame. Do not stretch the spline. If the screen begins to bunch or distort, you can pull the spline out and start over, as long as you have not damaged the mesh. If possible, keep the screen mesh square in the frame. That is, do not let the weave of the mesh angle up on a side. After you are finished, check that the tension on the screen mesh is satisfactory. If otherwise OK, replace the screen into its channel. Check for proper installation by sliding the screen back and forth.