The GAF Slate™ System is lighter in weight than an old-fashioned slate system. Are the slates thinner than old-fashioned slate?
No. In fact, at 1/4″ to 3/8″ our slates are comparable to old-fashioned slate. Our weight savings comes from the length reduction. We have cleverly eliminated the wasted slate (i.e., the part you never see) and replaced it with an ultra-tough waterproofing material (UnderBlock UV & Moisture Barrier). In short, what you see is real, genuine slate. What you don’t see, isn’t.
