The material is screwy. It shrinks and stretches as it heats and cools outside but I am also in one of the hotter states. I originally reviewed this item at 3 stars but have to change it to 5 considering the size of it, for how cheap it was. It covers a huge area of my front yard and helps keep my plants shaded and cooled from the 100°+ heat. I replaced my original turnbuckles with smaller turnbuckles. Trust me... Turnbuckles will be your best friend installing this. I just witnessed the neighbors snap right off of their house last night because they just tied theirs up which will not last through a wind or dust storm of any sort. Install this the right way and it will do exactly what you want it to.