Proper ventillation is one of the most important factors in your roof lasting it's full lifespan, looking great for decades, and not creating black mold issues in your attic or crawl space. Not only d ... read more
We have not used this product but are familiar with it. It is NOT a screen type. It's actually similar to Leaf Relief, which is a good product. A number of roofing contractors in our area (MD) use it ... read more