Installation Guide

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Product Data Sheet
For technical, system, and warranty information, visit gaf.com or call 1-800-766-3411.
GAF Liquid-Applied
January 2016, supercedes May 2014
Roof Mate Coating
Roof Mate Coating was especially developed for
extending the life of metal, conventional built-up,
modified bitumen, concrete, Hypalon, EPDM, and
TPO roofs. Roof Mate Coating forms a waterproof
elastomeric seal, uniformly covering the textured profile
of various substrates to form a monolithic coating,
providing protection from normal weathering, aging
and ultraviolet exposure. It is also effective in sealing
and encapsulating galvanized metal roofs, preventing
residual zinc run-off.
Roof Mate Coating is available in standard White, Tan,
Light Tan and Solar Gray colors, which are certified to
meet ENERGY STAR
®
, Cool Roof Rating Council (CRRC)
and LEED reflectance and emissivity criteria. White and
Light Tan also meet California Title 24 requirements.
If a faster drying white topcoat is desired, Roof Mate
Coating is available in a Quick-Set version (Roof
Mate Coating QS). The QS formulation provides a
more rapid skin-over time than standard Roof Mate
Coating, which helps to prevent wash-off from a
light rain or dew in 30 to 60 minutes, depending upon
ambient temperature & humidity. Roof Mate Coating
is also available in a High-Tensile version (Roof Mate
Coating HT), which provides approximately twice the
tensile strength, tear strength and elongation properties
for roof areas subject to heavy maintenance traffic,
severe weather conditions, chemical fallout, etc.
BASIC USES & GENERAL INFORMATION
ROOF MATE COATING
Solids by Weight 66% (±2) [ASTM D1644]
Solids by Volume 53% (±2) [ASTM D2697]
Weight per Gallon
11.8 lbs. (±0.2) (1.41 kg/l)
[ASTM D1475]
Ultimate Tensile
Strength
284 psi (±20) (1.95 MPa) @ 75°F
(24°C)
[ASTM D2370]
Elongation
at Break
258% (±30) @ 75°F (24°C)
[ASTM D2370]
*Roof Mate Coating is unique in that it
maintains its elongation values at
freezing temperatures, as well as after
extended weathering.
Hardness 55-65 Shore A [ASTM D2240]
Permeance
5.7 U.S. perms (3.76 metric perms)
@ 20 mils (508 microns)
[ASTM D1653]
Bond Strength
Exceeds cohesive strength of coating
[ASTM C297]
PERFORMANCE PROPERTIES
VOC
<50 g/L
Dry Time for Water
Resistance:*
3 hours @ 70°F (21°C), 50% R.H.
White @ 16 wet mils (406 microns)
*Required time will increase at higher
humidity and/or lower temperatures
Ultraviolet
Resistance
No deleterious effects after 5,000
hours [ASTM D822, ASTM G23]
Weather Resistance
No deleterious effects after 5,000
hours [ASTM D822, ASTM G23]
High Temperature
Stability
No age hardening up to 250°F (121°C)
[ASTM D794]
Resistance to Wind
Driven Rain
0.3% moisture result
[Federal Specification TTC-555B]
Surface Temperature
Limits for Service
Conditions
-30°F to 180°F
(-35°C to 82°C)
See applicable warranties and guarantees for complete
coverage and restrictions.
WARRANTY
1 gallon (3.8 liter) bucket
5 gallon (19 liter) pail
54 gallon (204 liter) drum
Shelf life 24 months if unopened containers stored between
40°F and 70°F (4°C - 21°C).
PACKAGING & SHELF LIFE
Roof Mate Coating is a water-based elastomeric coating
utilizing the latest advances in acrylic technology. Premium
quality acrylic resins are combined with an effective biocide
package and non-migrating fire retardants, resulting in supe-
rior durability, weatherproofing, ultraviolet resistance, algae/
mildew resistance and fire retardancy. Roof Mate Coating
is a highly reflective, permanently flexible “breathing” coat-
ing, allowing moisture vapor from the substrate or building
interior to escape while remaining impervious to mass water
penetration from the exterior.
PRODUCT DESCRIPTION
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The Following Advantages Combine To Make Roof Mate Coating The Most Effective, Low-Cost Method Of Extending
The Life Of New Or Existing Roof Surfaces.
Low Cost Application: Roof Mate Coating can be
installed more efficiently and at a fraction of the cost of
other roofing systems. No bulky or expensive materi-
als to haul, lift, spread, cut or glue. Simply apply Roof
Mate Coating by brush, roller or spray over the properly
prepared roof substrate. Cleanup requires only soap and
water. Roof Mate Coating conforms to all federal and
state air pollution standards and VOC regulations.
Fast Application: Roofs can be prepared and coated
with Roof Mate Coating significantly faster than apply-
ing conventional built-up or single-ply systems.
High Solids and Resin Content: The volume solids of
Roof Mate Coating, along with its excellent hide and
vertical hold characteristics, allows for faster film build in
fewer coats. This enables Roof Mate Coating to uni-
ADVANTAGES & BENEFITS