| USES Karnak
#98AF Fibered Aluminum Roof Coating helps reduce indoor building
temperatures. It's ideal for use on modified bitumen membranes,
metal corrugated decks, steep asphalt that has aged for 90 to 180
days, or any Karnak emulsion coating that has been allowed to cure
for 5 to 7 days.
SPECIFICATION
- ASTM D-2824 Type III
- ASTM-D-3805
- ASTM-D-962 Type II
- ASTM-D-962 Type II
ADVANTAGES 1.
The asphaltic oils in the base coating are protected from harmful
intense rays of the sun by the reflective properties of the aluminum.
Most of the sun's rays are reflected by this aluminum shield, thereby
preventing these oils from being "cooked" out of the base
coating. The coating, therefore, retains its resilient characteristics
and will not prematurely crack or dry out.
2. During the hot
summer months, Karnak #98AF Fibered Aluminum Roof Coating may help
reduce indoor building temperatures and improve inside living and
working conditions, by reflecting the sun's rays and reducing roof
surface temperatures.
One coat of Karnak #98AF Fibered Aluminum Roof coating will extend
the life of modified bitumen membrane, not only by limiting fire-spread
(as indicated by the U.L. Class "A rating), but its high aluminum
content and excellent reflectivity afford solar protection and weather
durability.
Modified Bitumen: Karnak #98AF Fibered Aluminum Roof coating is
U.L. Class A rated over specified Modified Bitumen Systems, UL Listing
#R12199(N).
SURFACE PREPARATION Prepare
all surfaces by sweeping clean of dust, dirt, oil and loose particles.
All surfaces to be coated should be dry. Repair all cracks and blisters
by spreading Karnak 19 ULTRA Rubberized Flashing Cement over the damaged area,
then embed Karnak Cotton, Glass or Poly-Mat reinforcement and apply
another coat of Karnak 19 ULTRA Rubberized Flashing Cement over the entire patch.
New asphalt roof surfaces should weather a minimum of 90 to 180
days before being coated with Karnak #98AF Fibered Aluminum Roof
Coating.
However, Karnak #98AF Fibered Aluminum Roof Coating can be coated
on roofs 5 to 7 days after Karnak asphalt emulsions have been applied.
NOTE:
Discoloration may occur in areas where Karnak 19 ULTRA Rubberized Flashing Cement
is not allowed to dry a minimum of 60 to 90 days.
APPLICATION Karnak
#98AF Fibered Aluminum Roof Coating should be spread uniformly over
the roof surface. Care should be taken not to overwork the coating
during application. This could have a damaging effect on the leafing
of the aluminum. Pour the correct amount of aluminum coating to
cover a given area and work it in one direction. Be sure to mechanically
mix the aluminum coating thoroughly before using. Karnak #98AF Fibered
Aluminum Roof Coating can be applied with a soft roof brush, roller
or spray.
COVERAGE Apply
at the rate of 1 to 1.5 gallons per 100 sq. ft.
CARE OF TOOLS Equipment
may be thoroughly cleaned after use with mineral spirits, taking
the necessary precautions when handling combustible materials.
CAUTIONS Do
not use near open flame. Avoid breathing solvent fumes and prolonged
contact with skin. Do not take internally. If swallowed, do not
induce vomiting. Call a physician immediately. Keep out of reach
of children. Keep container covered when not in use. Do not thin.
Do not apply when rain is imminent. Dispose of in an environmentally
safe manner. Cover air intakes during application and while drying. |