REEMAY® spunbonded polyester is a high strength material used as a reinforcing fabric in cold roofing mastics. Composed of 100% continuous filament polyester, REEMAY® offers the roofer a material with unusual physical and chemical properties, replacing fiberglass mat or organic roofing felts.

REEMAY® has been successfully used with a variety of cold roof coatings, including: cut-back asphalt, asphalt emulsion, and acrylic emulsions. The coating manufacturer’s instructions or specifications should be followed for optimal results.
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REEMAY® spunbonded polyester is a high strength material used as a reinforcing fabric in cold roofing mastics. Composed 100% of continuous filament polyester, REEMAY® offers the roofer a material with unusual physical and chemical properties, replacing fiberglass mat or organic roofing felts.

REEMAY® has been successfully used with a variety of cold roof coatings, including: cut-back asphalt, asphalt emulsion, and acrylic emulsions. The coating manufacturer’s instructions or specifications should be followed for optimal results.
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Water and Rot Resistance

REEMAY® spun bonded polyester maintains its physical properties when wet and is dimensionally stable during humidity changes. It did not rot after burial in soil for 5 years; REEMAY® retained all of its original properties.

Temperature Resistance

REEMAY® is a thermoplastic and can withstand continuous exposure to temperatures up to 350° F (177°C). For short periods, it can withstand exposure to 400°F (204°C).

Flammability

REEMAY® is listed by Underwriters Laboratories, Inc. as a Class "A" material when used in the prescribed manner on non-combustible decks.

Average Physical Properties - Style 2016

Weight, oz./yd2 lbs./10 squares

1.35

9

ASTM-D-1910

Breaking Strength, lbs.

25

ASTM-D-2523

Elongation at Break %

42

ASTM-D-2523

Tear Strength, lbs.

8

ASTM-D-2263

Flex Life, cycles

>100,000

ASTM-D-813

In addition, REEMAY® exhibits high resistance to splitting and cracking from thermal shock, low temperatures, freeze/thaw cycles, folding/creasing, and rough handling. Unlike fiberglass, it is non-irritating to the skin.

Chemical Properties

REEMAY® has excellent resistance to a variety of chemicals.
Chemical
Exposure at Temperature
Effect on Strength

Benzene*

1,000 hrs. @ 70° F (21°C)

None

Ethyl Alcohol

1,000 hrs. @ 70° F (21°C)

None

Coal Tar*

1,000 hrs. @ 70° F (21°C)

None

Ethylene Glycol

10 hrs. @ 200° F (93°C)

None

Kerosene

10 hrs. @ 200° F (93°C)

None

Xylene

10 hrs. @ 200° F (93°C)

None

Gasoline (leaded)

1,000 hrs. @ 70° F (21°C)

None

10% Hydrochloric Acid

1,000 hrs. @ 70° F (21°C)

None

1% Sodium Carbonate

10 hrs. @ 210° F (99°C)

None

Saturated Sodium Chloride

1,000 hrs. @ 70° F (21°C)

None

*These materials have been reported to be possible carcinogens in humans or animals. Suitable precautions should be taken to minimize exposure when they are used.
REEMAY® polyester reinforcing fabric for cold roofing mastics available sizes are: 4”x100’, 6“x100’, 12”x100’, 36”x100’, 4”x360’, 6”x360’, 12”x360’, 36”x360’.
Special order sizes available.

REEMAY® Roof Fabric

High-strength material used as a reinforcing fabric in cold roofing mastics.