In this way, the user can construct each detail step-by-step. A brief set of explanatory notes and a cross reference back to the Manual are provided for each detail. The new guide was developed to assist contractors, design professionals and building owners on the rooftop, or wherever they may be. It is available free of charge via the internet browser on a smart phone, or on a tablet wherever Wi-Fi is available. To access the Mobile Field Guide, visit mobile.slateassociation.org.