Skip to content
Karnak 98 Fibered Aluminum Roof Coating, Reflective Silver, 5 gal Pail
Regular price $199.00Orders start at $399 — combine any items to reach the minimum. Learn more
Karnak 98 Fibered Aluminum Roof Coating, Reflective Silver, 5 gal Pail
Karnak 98 Fibered Aluminum Roof Coating is a premium heavy-duty coating of selected asphalts, pure aluminum pigment flakes, refined solvents and reinforcing fibers, sold as a 5-gallon pail. Aluminum flakes leaf to the surface, reflecting over 50% of the sun's rays to protect the membrane and help reduce indoor temperatures. Apply one coat over modified bitumen membranes.
Key Features:
- Reflective Shield: Aluminum flakes leaf to the surface, forming a metallic shield that reflects over 50% of the sun's rays.
- Cooler Interiors: By reducing roof surface temperatures in hot months, it helps improve indoor living and working conditions.
- Extends Membrane Life: One coat helps extend the life of modified bitumen membrane by limiting solar damage to asphaltic oils.
- UL Class A: Limits fire-spread, as indicated by the U.L. Class A rating stated by the manufacturer.
- Heavy-Duty Formula: Selected asphalts blended with pure aluminum flakes, refined solvents and reinforcing fibers for heavy duty service.
- Premium Grade: Positioned as a premium fibered aluminum coating in the Karnak line.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Karnak |
| Sell unit | 1 pail, 5 gal |
| Product line | Karnak 98 Fibered Aluminum Roof Coating |
| Material | Selected asphalts with pure aluminum pigment flakes, refined solvents, reinforcing fibers |
| Color / finish | Silver (metallic) |
| Available colors | Silver |
| Available sizes | 5 gal (1 variant listed) |
| Coverage per unit | See manufacturer coverage data; applied at one coat |
| Wind / fire / impact rating | U.L. Class A rating for fire-spread limitation as stated |
| Approvals | U.L. Class A Rating (fire-spread, as indicated by manufacturer) |
Coverage & How Much You Need:
Apply as one coat; one 5-gallon pail is typically brushed or sprayed over the roof area per the manufacturer's stated coverage rate, which is not provided in the sources. Order pails based on total roof square footage divided by the coverage rate on the product data sheet.
Fit and Compatibility:
Formulated for application over modified bitumen membranes and asphaltic roofs, and pairs with Karnak primers and maintenance products where specified. One coat can extend the life of modified bitumen membrane; follow surface prep and application directions before coating.
Frequently Asked Questions (FAQ):
Q: What comes in the order?
A: One 5-gallon pail of Karnak 98 fibered silver aluminum roof coating.
Q: How much area does a pail cover?
A: The sources do not state a coverage rate per gallon; check the product data sheet and divide roof square footage by the stated rate to size the job.
Q: What does the aluminum do?
A: The aluminum flakes leaf to the coating surface, reflecting over 50% of the sun's rays and protecting the asphaltic oils in the roof from solar degradation.
Q: Can it help lower indoor temperature?
A: Yes, by reflecting the sun's rays and reducing roof surface temperatures, it can help reduce indoor building temperatures during hot months.
Q: Is it rated for fire?
A: The manufacturer indicates the coating limits fire-spread as shown by a U.L. Class A rating.
Q: What should I apply it over?
A: It is designed for heavy duty service over modified bitumen membranes and asphaltic roof surfaces.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Fibered aluminum coatings are a cost-effective way to add reflectivity and extend the service life of aging modified bitumen; choose 98 when you want the premium, heavy-duty grade. Verify the surface is dry and sound, stir thoroughly so the aluminum flakes disperse evenly, and apply one coat per directions for best leafing. Always confirm the coverage rate on the current data sheet before ordering pails.
Solvent-based coatings are flammable and emit strong vapors, so apply in ventilated conditions with no ignition sources and follow the safety data sheet.
Order Karnak 98 Fibered Aluminum Roof Coating in a 5-gallon pail to add a reflective, heat-fighting shield to your roof.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
