DFE-4 (GS-ALT) Gravel Stop (Alternate)

DFE-5 (NLB-ALT) Metal Expansion Joint (Alternate)

DFE-15 (ALT) TPO Wall Covering with Bituminous Base Flashing (Alternate)

DGE-4 (GS-ALT) Gravel Stop, Alternate

HW-4 (GS-ALT) Gravel Stop Alternate

CBE-4 (GS-ALT) Roof Edge Gravel Stop Alternate