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The HENRY CO HE203042 is a cold application asphalt roofing cement formulated to bond layers of asphalt-coated base sheets in built-up roofing assemblies. This brush-grade product applies without heat, making it well suited for smaller repair and installation projects where torch or hot-kettle equipment is not practical. At 38 pounds per 4-unit package, each gallon container delivers a manageable working quantity for roofing contractors and waterproofing professionals. The cement provides a durable adhesive layer between base sheet plies, helping maintain the integrity of the built-up roofing membrane system.
This cement is intended for built-up roofing applications on residential and commercial structures. It is designed for use where asphalt-coated base sheets require bonding at laps, seams, or full-coverage ply adhesion. The brush-grade viscosity makes it easy to spread with standard roofing brushes on smaller surface areas. Roofing contractors and waterproofing specialists typically apply this product during base sheet installation as part of a multi-ply built-up roofing system.
Designed for use with asphalt-coated base sheets in built-up roofing applications.
Installation should be performed by qualified roofing contractors familiar with built-up membrane systems and applicable local building codes. Ensure the substrate is clean, dry, and free of debris before applying cement. Apply using a stiff-bristle roofing brush and allow adequate open time before pressing plies together per the roofing system manufacturer requirements. Follow all safety data sheet guidance for ventilation and personal protective equipment during handling and application.
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