GAFGLAS^® #80 Ultima™ Base Sheet

GAFGLAS^® #80 Ultima™ Base Sheet is a high performance, asphalt coated, glass-reinforced roofing base sheet. Special Loctite™ closed-pore design prevents bleed-through while providing long-lasting leak protection in a variety of demanding applications.

• For ultimate leak protection...
  In applications when the potential cost of damage from a leak is severe
  
  
• As an effective flame retarder...
  When used in torch-applied modified bitumen systems
  
  
• In place of organic felts...
  Under tile roofs or in BUR systems
  
  
• Great for nailable systems...
  Where bleed-through can cause premature failure from deck movement
  (especially plywood decks)
  
  
• For difficult roofing situations...
  Where the performance of a lighter-weight base sheet is inadequate
  
  
• Enhances many systems...
  When used in place of standard base sheets, improves the overall performance
  of a BUR or modified bitumen system
  
  
• Superior investment...
  When life cycle cost is more important than the initial installed cost

• Helps prevent splitting and leakage...
  Closed-pore design means asphalt doesn’t bleed through, so system remains independent of deck movement when mechanically attached
  
  
• Saves labor...
  Rolls out flatter and installs easier than competitive base sheets
  
  
• Reliable performance...
  Resists long-term curling and shrinkage that can cause premature roof failure
  (as can happen with organic products)
  
  
• Inorganic Micro Weave^® Core...
  Prevents decay and provides superior tensile strength with dimensional stability
  
  
• Highest fire rating...
  For use in UL Class A rated assemblies
  
  
• System guarantees are available for up to 20 years