Technical Specifications

Width x length per roll 48” x 125 ft.
Sq. ft. per roll 500 sq. ft.
Weight per roll 20 lbs / 9.0 kg
Rolls per pallet (48” x 48”)
Rolls per truckload - 40 pallets
36
1440
Rolls & Pallets Specifications
Material composition
UV resistance
ASTM D226 types I & II
Water shower exposure ASTM D4869
Permeability ASTM E96-B
Permeability ASTM E96-BW
Deck-side water absorbency in 10 min
Hydrostatic head AATCC 127
Temperature range
Nominal thickness ASTM D1777
Enhanced slip resistant surface
Class A fire ASTM E108
Limited warranty
Polyolefin
6 Months
Meets & Exceeds
Pass
30 Perms
150 Perms
35 g/m²
700 mm
-40°F to 240°F
30 mils / 0.76 mm
GRIPSPOT™
Pass
Lifetime
Asphalt
None
Meets
Pass
5 Perms
NA
NA
NA
NA
60 mils / 1.52 mm
Basic
NA
None
The data shown above is based on the test averages and independent test reports. There can be a +/-10% variation in
the individual test results. This report should not be considered as a warranty for the manufacturer. The manufacturer is
not responsible for the misrepresentation or misinterpretation of the data by the reader. The HYDRA and GRIPSPOT™
logos are registered trademarks of FT Synthetics Inc.
Specification & Standard HYDRA #30 Felt
Product meets or exceeds all required building codes: ASTM D226
Types I & II, ASTM D4869, CAN/CSA A123.3, CAN/CSA A220.1,
Florida Building Code #FL20853, California Building Code
Compliant, Class A Fire ASTM E108, CCRR 1028, AC188, Texas
Department of Insurance, RCABC Roofstar.
TM
®
We Make Roong Safer
©2020 FT Synthetics Inc. All rights reserved.
Rev: April 15, 2020
HYDRY technology is designed to tackle high
moisture content 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.
HYDRY™ Technology
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CLASS A
ASTM E108