Protection - Whether you attach it at the top or sides of your RV, the purpose of these aluminum strips remains the same; to create a seal at the edges of the membrane to protect your RV against water damage. Held down by stainless steel screws and either covered in sealant or with the vinyl insert, it adds an extra layer of protection against water penetration.
Durability Made of powder-coated aluminum, the trim molding is also resistant against rust and cracking. Aluminum, while still being flexible enough to round curves, does not rust, which is a huge help when dealing with water protection. In addition, the powder-coated finish, unlike conventional liquid painting, is designed to bend and fold without cracking the paint.
Appearance If you attach the trim to the sides of your RV, you want it to look like it belongs there. With the slot for the vinyl insert, the screws won't be visible either, providing an extra layer of protection and style.