Data Sheet

      GAFGLAS® Ply 4 Specs

      GAFGLAS® Ply 4 Docs

      GAFGLAS® Ply 4 Videos

      Why GAFGLAS® Ply 4?

      Constructed with a strong glass fiber mat coated with the finest quality asphalt, this base sheet is designed with optimum porosity to assure a sound, watertight membrane. It has a high tensile strength and high degree of dimensional stability, resulting in a roof system with greater resistance to splitting and cracking. Typical system guarantees available for up to 15 years; select system constructions available with up to 20 year guarantee coverage.

      ecomedes sustainability logo

      See how this product can help you meet your environmental goals.  View sustainability information here.

      Benefits

      Benefits of GAFGLAS® Ply 4 include:
      • Optimum felt porosity 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
      • Can be used in all climate zones Rolls out flat for easy installation  
      Commercial Recommended GAF Certified Roofing Companies Near You

      Where to buy

      Find a commercial distributor near you.

      Find a contractor

      Find a GAF certified contractor near you.

      Get Support at Every Phase of Your Project

      PLANNING

      Get assistance with detail drawings and products
      GET STARTED

      PURCHASE

      Receive support from your local territory manager
      CONNECT

      DELIVERY

      Get delivery instructions or see status updates
      GET STATUS