161 OmniTG™ ULTRA Granular roofing membrane is a premium membrane suitable for use as a fire-rated (FR) cap sheet and applied using heat welding. 161 OmniTG™ ULTRA Granular is a high-performance membrane that may be used over various combustible and non-combustible decks. Applications also include re-roofs, re-covers, BUR repair, and in flashing assemblies.