Karnak - 34 Reinforcing Asphalt Saturated Cotton Fabric

Karnak 34 Utility Grade Asphalt-Saturated Cotton Fabric is a lightweight yet resilient reinforcement material impregnated with specialized asphaltic bitumen. Its pliable open-mesh construction enables smooth, wrinkle-free installation, allowing surface coatings to penetrate and interlock for a strong mechanical bond. It resists rot and adapts to expansion and contraction, making it ideal for reinforcing roof repairs, flashings, foundation waterproofing, and exposed construction surfaces.

Key Features

• High-strength cotton fabric thoroughly saturated with asphaltic bitumen
• Open mesh construction allows coatings to penetrate and interlock
• Pliable and tearable by hand for quick and precise application
• Flexible and elastic to accommodate thermal expansion and contraction
• Economical, lightweight option available in multiple roll widths

Available widths and quantities per carton:

• 4″ × 150′: 12 rolls per carton; 540 rolls per pallet
• 6″ × 150′: 8 rolls per carton; 360 rolls per pallet
• 9″ × 150′: 4 rolls per carton; 144 rolls per pallet

Fabric weight: approximately 8–10 oz per square yard

VOC content: 0 g/L (non-regulated)

Material: saturated cotton fabric with asphaltic bitumen

• Ensure the surface is clean, dry, and free from dust or debris.
• Select the appropriate width roll for the application area.
• Lay the fabric over the target area and embed it into wet flashing cement or coating using a brush or trowel.
• Smooth out wrinkles and ensure full contact for proper penetration and adhesion.
• Apply a top layer of flashing cement or coating over the fabric to complete the bond.
• Allow the assembly to cure according to the coating or cement product instructions.

Q: What applications is this fabric best suited for?
A: It is ideal for reinforcing roof repairs, flashings, parapet walls, waterproofing foundations or retaining walls, and covering exposed construction zones.

Q: Can I tear it by hand?
A: Yes. The open mesh and pliability allow you to tear it by hand for faster and more precise application.

Q: Why does the open mesh matter?
A: It lets coatings penetrate through and mechanically interlock with the fabric—for a stronger, longer-lasting bond.

Q: How does this fabric handle temperature changes?
A: Its elasticity prevents rupture due to expansion and contraction caused by thermal movement.

Q: Which roll width is economical for inventory?
A: The 4″ × 150′ roll comes in higher carton quantities (12 rolls), making it more economical for frequent use in smaller areas.