Rust-oleum 347431 Wet Roof Repair Cement 3 Gallon

Product Description

The RUST-OLEUM 347431 is a heavily fibered, asphalt-based roof cement formulated for direct application to wet or dry roofing surfaces. It blends penetrating oils and plasticizing agents to maintain workability in cold conditions, resisting sags while spreading easily. Supplied in a 3-gallon container, it covers a wide range of repair tasks including sealing blisters, cracks, and punctures, restoring deteriorated flashings, and adhering new asphalt ply and modified bitumen membrane flashings. Licensed roofing contractors and experienced maintenance professionals are the primary installers.

This roof cement is suited for both flat commercial roofs and shingled residential roofs. It is applied to repair and restore flashings and common roofing defects, and to seal penetrations including vents, skylights, shingles, and chimneys. Because the material can be applied directly to wet surfaces, it is practical for emergency repairs where drying conditions are not ideal. The black finish blends with standard asphalt roofing materials.

Key Features

• Applies directly to wet or dry roofing surfaces for flexible scheduling
• Heavily fibered asphalt base reinforces repaired areas against cracking and splitting
• Penetrating oils and plasticizing agents maintain spreadability in cold weather
• Resists sags on sloped surfaces after application
• Repairs blisters, cracks, and punctures and adheres modified bitumen membrane flashings
• Seals vents, shingles, skylights, and chimneys on flat or pitched roofs

Compatibility

Designed for use on flat commercial roofs and shingled residential roofs with asphalt ply, modified bitumen membrane flashings, and standard roofing penetrations including vents, skylights, and chimneys.

Installation Notes

Application should be performed by a qualified roofing contractor or experienced maintenance technician familiar with asphalt-based sealants. Clean the repair area of loose debris before applying. Follow local building codes and manufacturer application guidelines regarding minimum and maximum temperature thresholds for cold-weather use. Ensure adequate ventilation when working in enclosed spaces, and use appropriate personal protective equipment when handling asphalt-based materials.

Technical Specifications

• Product Type: Asphalt-Based Roof Cement
• Color: Black
• Container Size: 3 gallons
• Weight: 36.55 pounds
• Package Quantity: 1

Standard Information

• Brand: RUST-OLEUM
• Manufacturer Part Number: 347431