Solar Window Inserts

Step 4 Attach film to frame.

Lay your plastic film/mylar over what will be the side of the panel facing the interior (opposite side from the screen side) of your room and stretch and staple the film to the frame. Be careful not to stretch so hard that you rip the film through the staples. It just needs to be taut enough to minimize any wrinkles in the film. Like the screen, we just tack the film to hold it in place. We will finish with thin molding to complete the project. Unlike the screen, excess film can overhang the frame and be trimmed off with a sharp knife after completing the frame.