Amerimax Home Products 70520 Galvanized Roll Flashing

Product Description

The AMERIMAX HOME PRODUCTS 70520 is a galvanized roll flashing designed for weatherproofing and water-diversion applications in residential and light commercial construction. Cut from .010-inch galvanized steel, this roll measures 20 inches wide by 25 feet long and provides a workable, corrosion-resistant barrier at roof edges, window and door openings, sidewall intersections, and similar vulnerable transitions. Roofers, siding installers, and general contractors use roll flashing where a continuous, field-formed metal strip is needed. The galvanized finish provides baseline rust resistance suitable for above-grade exterior exposure. The roll format allows the installer to cut lengths on site to match the specific job requirement.

Roll flashing in this width and gauge is commonly used in residential new construction and re-roofing projects. Typical applications include step flashing courses alongside dormers, counter-flashing at masonry walls, drip-edge supplementation, and apron flashing at roof-to-wall transitions. The 25-foot roll length is practical for most single-family residential scopes. Siding and window installers also use strips cut from this roll behind trim boards and around rough openings to manage water infiltration at cladding transitions.

Key Features

• Galvanized steel construction provides corrosion resistance for exterior above-grade applications
• .010-inch gauge steel is field-formable and cuttable with standard aviation snips or sheet-metal tools
• 20-inch width suits wide flashing runs without requiring multiple overlapping strips
• 25-foot roll length reduces waste and supports efficient layout on most residential jobs
• Roll format allows on-site custom cutting to match variable conditions

Compatibility

Designed as a standard galvanized roll flashing suitable for residential and light commercial roofing, siding, and weatherproofing applications where .010-inch gauge galvanized steel strip material is specified.

Installation Notes

Roll flashing installation is typically performed by licensed roofers, siding contractors, or carpenters following local building code requirements and manufacturer fastening guidelines. Use aviation snips or a sheet-metal cutter to trim lengths; cut edges will be sharp and require appropriate hand protection. Do not use galvanized steel flashing in direct contact with pressure-treated lumber rated above 0.15 pcf preservative retention without a separator or compatible coating, as chemical corrosion can occur. Fasten per applicable building code and ensure all laps shed water away from the structure.