Why is there polyester, vinyl fabric at the top and bottom?
The Fabric at the bottom allows for a tighter roll by having the fabric make the first several revolutions. The result is a smaller, tighter roll when it reaches the top. The fabric at the top functions as a protective casing when the curtains are rolled all the way up.
We also match the color of fabric/vinyl to your porch which makes it very attractive! Never purchase porch covers or enclosures that are not made with a combination of vinyl and FABRIC.