Henry Co HE204042 Plastic Roof Cement 1 Gallon

Product Description

The HENRY CO HE204042 is a heavy-bodied plastic roof cement formulated for dry-surface application on asphalt, composition, and metal roofs. It spreads easily and cures to a tough, flexible film that holds up in all weather conditions. The cement meets or exceeds ASTM Specification D-4586, Type I requirements, making it a code-referenced option for professional roofing repairs. Roofers and general contractors reach for this material when field conditions call for a durable, single-component sealant that bonds without priming on dry substrates.

This product is suited for residential and light commercial roofing applications. It is used to repair holes, cracks, and splits in asphalt-coated, composition, and metal roofing systems. It also seals penetrations and transitions including chimneys, vents, skylights, and flashings, and can be used to reseal lifted or separating asphalt shingle tabs. Packaged in a one-gallon container, it is appropriate for repairs ranging from small spot work to broader surface sealing tasks.

Key Features

• Meets or exceeds ASTM D-4586, Type I specifications
• Applies on dry surfaces without a primer coat
• Heavy-bodied formula spreads and stays in place on vertical and angled surfaces
• Cures to a tough, flexible film that accommodates seasonal movement
• Repairs holes, cracks, and splits in asphalt-coated, composition, and metal roofs
• Seals around chimneys, vents, skylights, flashings, and shingle tabs

Compatibility

Designed for use on asphalt-coated, composition, and metal roofing systems, including penetrations and flashing details.

Installation Notes

Application is performed by licensed roofing contractors or qualified tradespeople. The substrate must be dry before applying this cement. Use a trowel or putty knife to work the material fully into cracks and around penetration edges. Allow adequate cure time before exposing the repair to water or foot traffic.