Metal Roofing Underlayment

May 15, 2020

ATAS International Inc. offers an extensive line aluminum and steel roof and wall panels, linear ceiling, trims and accessories to provide your project with labor savings and added value. Just two added value products are the ATA-Guard and ATA-Shield.


  • Highly engineered
  • Mechanically attached
  • Coated woven synthetic roofing underlayment for sloped roofs
  • 100% asphalt free
  • Nominal thickness of 30 mils
  • Available in rolls 48” wide by 250’ long, a total area of 1000 sq. ft.
  • Fastening with 3/8” head x 1” roofing nails
  • High temperature performance up to 240° F


  • Self-adhering underlayment designed specifically for use under metal roofing
  • Well suited for use where a water resistant barrier is required
  • Composed of an unreinforced polymer-modified bitumin material adhered to the underside of a polymer-coated synthetic woven material
  • Membrane is 45 mils thick
  • Available in rolls 3’ wide by 72’ long
  • Each roll weighs 48 pounds and covers approximately 200 sq. ft. of roof surface
  • Split/perforated release backing film aids in easy positioning of sheets to maintain a proper line
  • High temperature performance up to 240° F