Peel & Stick Roofing Underlayment

Epistik SA-250

Self Adhered Roofing Underlayment

Epistik SA-250 Self Adhered Roofing Underlayment

Top of the Line Premium Heavy Duty Replacement for Traditional Peel and Stick Roofing Underlayment

Epilay® Epistik™ SA-250 roofing underlayment with its advanced engineering is highly recommended for Self Adhered Peel & Stick applications for sloped roofs. Uniquely designed by using extremely high strength, a unique 3 layer facer with a deep embossing non-woven Blue Top Surface coated with proprietary SBS Modified Bitumen, it is ideal for use under Asphalt Shingles, Tiles, Shakes & Metal roofing. Epilay® EpiStik SA-250 is a Top of the line Premium Heavy Duty underlayment specifically manufactured to replace the traditional asphalt based Sanded and Granular Peel & Stick Underlayments.

Epilay® EpiStik™ SA-250 Hi Temp Underlayment which provides for a cooler working surface can be used under primary roofing materials to replace other low end traditional asphalt based Peel & Stick products. The unique one of its kind high traction walking surface permits easier steep slope walk-ability, even during high condensation or moisture on the surface.

Epilay® EpiStik™ SA-250 adhesive layer is made from the advanced SBS Modified Bitumen based adhesive which performs extremely well in high as well as low temperatures and gives excellent adhesion to the primary roofing surface whether it is plywood or metal. The temperature performance range for Epilay EpiStik™ SA-250 is -40° F to 260° F. (-40°C to 126° C)

It has a split release liner with silicone coating which helps in easier installation.

Epistik SA-250 Self Adhered Roofing Underlayment
Grip Walk

Epilay® EpiStik™ SA-250 is an extremely strong roofing underlayment with a 50 mil thickness and a 2 square roll weighing 50 lbs. These unique design features when coupled with Epilay® EpiStik™ SA-250 exceptional tear strength and excellent adhesion allows the contractor to easily carry the roll up and down the ladder. It is available in 2 square (3ftX66.7ft) rolls.

  • Ice Dam Protection
  • High Temp
  • Secure Seal


Epilay® Epistik™ SA-250 is a 100% synthetic composition providing the following benefits to the roofing contractor:

  • Water repellent, non- absorbent and UV resistant for up to 180 days
  • Unique 3" Overlap Edge for excellent adhesion in overlaps
  • 50 mil thickness.
  • Ice Dam Protection
  • Class A Fire Rating as per ASTM E 108
  • Excellent rollability
  • Works best for use under Metal, Shake, concrete tiles, slates & asphalt shingles.
  • Does not wrinkle, crack or become stiff in colder temperatures for smooth and easy installation
  • Epilay® EpiStik SA-250 will not dry out or leach oil in high heat environment as other asphalt based Peel & Stick products do.
  • Limited Life time limited warranty
  • Synthetic construction impervious to mold growth
  • Strong and durable polymer construction
  • 100% recyclable
  • Temperature performance range -40°F to 260°F (-40°C to 126°C)
  • Florida Building Code and Miami Dade Approved

Technical Data

Test Properties Test Standard Epistik SA-250 Values
Unrollability ASTM D 1970 No Cracking, tearing or damage
Thickness Mils ASTM D 5147 50 mils
Tensile Strength ASTM D 1970 MD95/CD61
Adhesion to Plywood lb/ft ASTM D 1970 -
40° F - 9.5
75° F - 46.8
Thermal Stability ASTM D 1970 260° F/Pass
Low Temperature Flexibility ICC AC 48 Pass
Tear Resistance lb/ft ASTM D 1970 MD124/CD96
Permeability ASTM E 96 0.08
Nail Sealability ASTM D 1970 Pass
Temperature Range - -40° F to 260° F
Fire Rating ASTM E 108 Class A
Waterproof Integrity of Lap Seam - Pass
Max Load,lbf/in ASTM E 1970 MD95/CD61
Specifications Data
Length per roll 66.7'
Width per roll 36"
Weight per roll 48 lbs
Squares per roll 2
Rolls per pallet 25
Gr. weight per pallet 1250 lbs