GAFGLAS^® Ply 4

GAFGLAS^® Ply 4 roofing felt is constructed with a strong glass fiber mat that is coated with the finest quality asphalt, and is designed with optimum porosity to assure a sound, watertight membrane.

GAFGLAS^® Ply 4 is used as a ply felt in the construction of built-up roofs. It is designed for use in all climate zones and is appropriate for use as a base sheet, as a ply felt, and in the construction of flashing membranes.

• High tensile strength and a high degree of dimensional stability, resulting in a roof system with greater resistance to splitting and cracking
  
  
• Optimum porosity of the felt provides ready escape of air while allowing proper asphalt penetration at the time of mopping
  
  
• Asphalt coating provides high degree of moisture resistance
  
  
• Fire resistant — for use in UL Class A rated assemblies
  
  
• Wind uplift resistance — selected roofing assemblies with GAFGLAS^® Ply 4 felts meet FMRC Class 1-180 when installed over concrete decks
  
  
• Meets ASTM D-2178, Type IV specifications
  
  
• Meets requirements for application in all climate zones
  
  
• Rolls out flat for easy installation
  
  
• Typical system guarantees available for up to 15 years, select system constructions available with up to 20 year guarantee coverage.