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hydra breathable


FT Synthetics HYDRA is a breathable synthetic roofing underlayment designed to add an extra layer of water resistant protection under your primary roofing material, and at the same time help the release of trapped moisture due to poor attic ventilation. HYDRA is designed with an internal monolithic membrane. This structure provides outstanding vapor permeability using an advanced chemical transfer of water vapor and acts as a liquid water barrier under all weather conditions. HYDRA includes our slip-resistant GRIPSPOT™ technology top surface for superior walkability and HYDRY™ technology for faster roof deck drying. HYDRA is approved for installation over plywood or OSB roof decking with proper fasteners on roof slopes 2:12 and greater. It is an ideal solution for breathable roof systems such as metal, tile, slate, and cedar shingles, but can also be used under asphalt or synthetic shingles.

HYDRY™ Technology*

Now features our exclusive HYDRY™ technology designed to tackle the problem of water on the roof deck during installation. Non-breathable synthetic roofing underlayments will trap liquid water on a roof deck which can quickly lead to mold growth and possible roof deck rot. Other breathable roof underlayments don’t perform much better and are slow to move liquid water from the deck. HYDRY technology quickly absorbs water from the deck and transfers it at a rate 15 times the leading breathable synthetic underlayment in the market and 10 times traditional #30 felt.

  • NEW HYDRY technology for:
    • Rapid roof deck drying provided weather is favorable
    • Reduction in mold growth
    • Helping prevent roof deck rot
  • GRIPSPOT Technology for superior slip resistance
  • Durable breathable three-layer construction
  • Safe and easy installation
  • 90 day UV resistant*
  • Does not wrinkle or curl
  • Low-temperature flexibility
  • 6x stronger and 5x lighter than traditional #30 felt
  • LIFETIME limited warranty

*HYDRA is designed to withstand up to 90 days of UV exposure without physically degrading.  However, this is not referring to its ability to withstand exposure to heavy rain, snow, and high winds. HYDRA provides a water resistant protection only and is Not waterproof.  It is not designed to be used as a temporary roof to protect property or possessions.

HYDRA Meets or exceeds the following code standards: ASTM D226-97, ASTM D4869, CAN/CSA A123.3, FBC #FL20853, CAN/CSA, A220.1, ASTM E108, CCRR 1028, AC188, TDI, RCABC RoofStar, Miami-Dade NOA #: 21-0712.02 and California Building Code Compliant


hydra Dual logo program

Take advantage of low-cost marketing with our HYDRA Dual Logo Program and receive majority branding alongside our own logo and contact information. You’ll be recognized in your community as a leader in sustainable roofing practices and gain valuable exposure. 

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