ABOUT NEWS & EVENTS PROJECTS GUARANTY SHOP ONLINE CART DERBIGUM SOLUTIONS DOCUMENTATION PROJECTS TOOLS CONTACT US EXPLORE APP MODIFIED BITUMEN INFORMATION & PRODUCTS CAP SHEETS COMMODITY BASE SHEETS SELF-ADHERED VAPOR BARRIERS SHOP BASE SHEETS BASE SHEETS DERBIGUM OFFERS APP Modified Bitumen When built in a multi-ply assembly, the base or ply membranes are designed to provide superior waterproofing to the modified bitumen system. In a normal assembly, the base/ply membrane will be covered with a cap membrane to provide additional waterproofing and durability. Manufactured utilizing a modified bitumen co-polymer, these membranes are reinforced with polyester, fiberglass or a combination and have a variety of surfacing and thicknesses to meet any need. Shop Base Sheets Products or, scroll down to learn more! DERBIGUM P DERBIGUM GP DERBIGUM GP-FR DERBIGUM XPS DERBIGUM XPS-FR DERBIBASE DERBIBASE ULTRA DERBIBASE HV PRS VENTED BASE PRS MODIFIED GLASS BASE PRS GLASS BASE PRS GLASS PLY IV PRS GLASS PLY VI SHOP BASE SHEET PRODUCTS Our Other Brands SUBSCRIBE TO THE NEWSLETTER FIRST NAME LAST NAME EMAIL RESOURCES DOCUMENT LIBRARY FOLLOW US ABOUT DERBIGUM CAREERS CONTACT US FIND A REP

ABOUT NEWS & EVENTS PROJECTS GUARANTY SHOP ONLINE CART DERBIGUM SOLUTIONS DOCUMENTATION PROJECTS TOOLS CONTACT US HOME > RESOURCES > WATERPROOFING WATERPROOFING Document Title Language Our Other Brands SUBSCRIBE TO THE NEWSLETTER FIRST NAME LAST NAME EMAIL RESOURCES DOCUMENT LIBRARY FOLLOW US ABOUT DERBIGUM CAREERS CONTACT US FIND A REP