Hydrashell25

HydraShell25

Synthetic Roof Underlayment

The economical underlayment choice with a 25-year warranty.

  • 2.5 times lighter per square than #15 felt
  • 25 times stronger than #15 felt
  • 180-day UV resistance
  • High-strength woven fabric, polypropylene-coated on both sides
  • Specially formulated anti-slip walking surface
  • Printed nail locations and 3” overlap line
  • 100% asphalt-free
  • Made in the USA
  • 100% post-consumer recycled materials
  • Miami-Dade County Code approved
  • ICC-ES ESR-3361
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Specs

Weight Per Square: 2.8 lbs
Width/Roll Length: 48”/250’
Fire Rating: UL Class A
Nail Seal Ability: Pass
Water Transmission: Pass
Tear Strength: 36 lbs MD/36 lbs CD
Pliability: Pass
Water Ponding: Pass
Coefficient of Friction
     Static: Printed Side 1.022
     Kinetic: Printed Side 1.006

Hydrashell 50

HydraShell50

Heavy-Duty Synthetic Roof Underlayment

The high-strength underlayment choice, backed by a limited lifetime warranty.

  • 10 times lighter per square than #30 felt
  • 20 times stronger than felt
  • 180-day UV resistance
  • High-strength woven fabric, polypropylene-coated on both sides
  • Specially formulated anti-slip walking surface
  • Printed nail locations and 3” overlap line
  • 100% asphalt-free
  • Made in the USA
  • Miami-Dade County Code approved
  • ICC-ES ESR-3361
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Specs

Weight Per Square: 2.8 lbs
Width/Roll Length: 48”/250’
Fire Rating: UL Class A
Nail Seal Ability: Pass
Water Transmission: Pass
Tear Strength: 58 lbs MD/77 lbs CD
Pliability: Pass
Water Ponding: Pass
Coefficient of Friction
     Static: Printed Side 1.202
     Kinetic: Printed Side 1.053

Hydrashell HT200

HydraShell HT200

High Temperature Ice And Water Protection

Marco’s premier underlayment, this peel and stick, self-adhering solution provides superior leak protection.

  • Clean, easy-to-handle, self-adhering application
  • Split-back release film peels off for easy installation
  • Instant watertight laps
  • Adheres to a variety of substrates
  • Polymer-modified asphalt gives excellent pliability
  • Exceptionally durable high-tensile/tear strengths
  • Glass fiber reinforcement, high dimensional stability
  • 30-year limited warranty
  • ICC-ES-ESR-3856
  • FL 18241
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Specs

Width: 36”
Length: 66’ 8”
Thickness: 48 mil nom.
Gross Coverage: 2 squares
Weight: 50 lb nom.
Tensile Strength, MD: 34 lbf/in
Tensile Strength, XMD: 28 lbf/in
Elongation, Mod. Bit. Portion: 10% min
Adhesion to Plywood @ 40° F: 2 lbs/ft of width
Adhesion to Plywood @ 75° F: 20 lbs/ft of width
Thermal Stability, Max: 0.1 inch
Flexibility Temperature: -20° F
Tear Resistance, MD & XMD: 20 lbs
Slip Resistance: Pass
Moisture Vapor Permanence: 0.1 U.S. Perm. or less
Nail Seal Ability: Pass
Waterproof Integrity: Pass
ASTM Testing: D1970