Ken non aluminium & I'm happy with it. Now if this was up during a Texas summer there might be a notable difference in light and burring. In the winter when we primarily use this we are good with clear. Let me check where I bought it. Give me a day or so. Each cover we weld together is in user for about 5-7 years. I roll lasts forever.
Shady yes it is different...completely different product.
