Thanks for the feedback.
It makes sense that the warranties only apply to lower wind speeds since it is only for a shorter 20 or 30 year duration. I found an article from the 2014 RCI Convention - Roofing Wind Speeds: ASCE 7, Uplift Ratings, and Warranties. It seems the use of wind speeds for...
Hi,
I apologize if this is not in the correct forum. I was reviewing a number of roof membranes (TPO, PVC, EPDM) from various manufacturers and most specify that the membrane is warrantied up to wind speeds of 55 MPH. Does anyone know where this number came from and why it is used? Aside from...