98AF Fibered Aluminum Roof Coating

Karnak #98AF Fibered Aluminum Roof Coating is made of selected asphalts and pigment flakes of pure aluminum blended with refined solvents and reinforcing fibers for heavy duty service. When Karnak #98AF Fibered Aluminum Roof Coating is applied to the roof, the aluminum flakes leaf to the surface providing a reflective metallic shield over the base of the coating. Karnak #98AF Fibered Aluminum Roof Coating is a true 3 lb. aluminum pigment product conforming to ASTM D-962, Type II.


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.


  • ASTM D-2824 Type III
  • ASTM-D-3805
  • ASTM-D-962 Type II
  • ASTM-D-962 Type II


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).


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.


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.


Apply at the rate of 1 to 1.5 gallons per 100 sq. ft.


Equipment may be thoroughly cleaned after use with mineral spirits, taking the necessary precautions when handling combustible materials.


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.

Translate Site

Kanopy Reflective Roof Maintenance Solutions
  • Reduce Energy Use
  • Lowers Peak Energy Use, reducing energy costs year-round
  • Helps the environment, reduces "Heat Island Effect"
  • Extend the life of the roof
  • Reduces waste. Helps avoid roof tear-off.
  • Economic compared to roof replacement
  • Eliminates interior building operation disruption