First, measure said window where you want to put them. Window frames are funny sometimes as they angle down a bit on the bottom to let water run off and some have inserts for removable screens etc. you can see all the different ridges in my windows in this picture.
But there was enough room on the outer edge to fit a 1x2, so that’s what I used. And enough room to overlap that with 1 x 1/4 wood.
So, measure, cut and fit. In my case, was not an exact tight fit, but workable with some foam weatherstripping for last year. Once I had the frame cut, I fastened the corners with small L brackets as shown in picture. I put a piece of wood across the middle to aid in keeping the vinyl tight.
Then was time to attach the vinyl. This is thick vinyl that I purchased at Walmart in sewing dept. As you can see it’s crystal clear.
I cut a piece to fit the outside area of the wood frame and used a staple gun to fasten it down at intervals, stretching it as I went. Last year I put them in place with the stapled side toward the window. Put Weatherseal around the edges, fastened a couple of clips to the window frame on each side and called it good. Was an experiment that worked very well. They just added a bit more cold weather proofing to the windows.
This year I decided to take it a step further by adding a 1x1/4 inch trim around the stapled side to make the windows fit tight without the weatherstripping. So I put the windows in place and held the 1x1/4 piece of wood against the window frame, marked where it needed cutting, put it in place and nailed a few brad nails to hold it in place, then continued all the way around, cutting and fitting the pieces with nails. Then took it off to the garage where I finished nailing it down. Basically it put the vinyl in a sandwich between the two pieces of wood. Once I put them back up, they were glove tight. Put the two clips back in the frames and done.
And you can’t really tell they are there from inside looking out.
They aren’t professional, but they work!
