Description
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Sidewall Roof Flashing with Waterlock – Painted Steel, Copper, Stainless Steel & Galvalume
Professional-Grade Roof-to-Wall Flashing | Built-In Waterlock | Multiple Colors & Materials
Protect your roof where it meets a vertical wall with our heavy-duty metal sidewall flashing with built-in Waterlock.
Designed for roof-to-wall intersections, this pre-formed metal flashing helps direct rainwater away from vulnerable joints and provides a clean, professional finish.
Our sidewall roof flashing features a unique ½-inch Waterlock that provides an additional barrier against wind-driven rain and water migration beneath the roofing material.
Available in painted steel, real copper, stainless steel, and Galvalume steel, it's an excellent choice for roofing contractors, builders, and DIY homeowners.
No on-site bending required. Choose your material, color, and length, and we'll ship your flashing directly to your door.
Why Choose Our Sidewall Flashing?
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Built-In Waterlock Protection: A ½-inch formed Waterlock helps resist water movement beneath the roof covering.
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Pre-Formed and Ready to Install: Professionally bent for consistent dimensions and easier installation.
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Heavy-Duty Metal Construction: Available in painted steel, copper, stainless steel, and Galvalume steel.
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Multiple Colors: Choose a finish that complements your roof, siding, or exterior trim.
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Generous Roof Coverage: The 5½-inch roof leg provides coverage along the roof-to-wall intersection.
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4-Inch or 6-Inch Vertical Leg: Extends upward against the adjoining wall for protection beneath properly installed counter flashing or siding.
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Convenient Lengths: Available in 40-inch and 80-inch sections.
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Custom Fabrication Available: Contact us for special dimensions or custom orders.
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Fast Shipping: Most orders ship within 1–2 business days.
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Free Standard Shipping: Included in the product price for the lower 48 states.
Available Materials & Finishes
26-Gauge Painted Steel
Our painted steel sidewall flashing is manufactured from durable 26-gauge steel with a high-quality Sherwin-Williams WeatherXL coating.
The silicone-modified polyester paint system provides resistance to weathering, staining, abrasion, and metal marking.
Choose from a wide selection of popular roofing colors, including black, white, bronze, brown, gray, green, red, and specialty textured finishes.
Important: Painted steel is finished in the selected color on the exposed side. The backside may be a different color depending on the selected finish.
Real Copper
Our real copper sidewall flashing provides a premium architectural appearance that naturally develops a distinctive patina over time.
Copper is unpainted, with the same natural metal finish on both sides.
An excellent choice for copper roofing, historic restoration, and high-end residential or commercial construction.
Stainless Steel
Our stainless steel sidewall flashing offers excellent corrosion resistance and a clean, natural-metal appearance.
Stainless steel is unpainted, with the same finish on both sides.
Ideal for roofing projects where durability and corrosion resistance are priorities.
Galvalume Steel
Our Galvalume sidewall flashing offers the natural metallic appearance of aluminum-zinc alloy-coated steel.
Galvalume is unpainted, with the same metallic finish on both sides.
A practical choice for metal roofing projects where a natural metallic finish is desired.
Sidewall Flashing Dimensions & Available Lengths
Our sidewall flashing is manufactured with a precision-formed profile designed for effective water management.
Standard Profile Dimensions:
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Vertical Wall Leg: 4-inch or 6-inch options
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Horizontal Roof Leg: 5½ inches
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Waterlock: ½ inch
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Available Section Lengths: 40 inches and 80 inches
The ½-inch Waterlock is formed along the outer edge of the horizontal roof leg, creating an additional water barrier.
Sections can be field-trimmed using appropriate metal-cutting tools.
Need a Custom Size? We specialize in custom sheet metal fabrication. Contact us for custom widths, profiles, or lengths.
Where Is Sidewall Flashing Used?
Metal sidewall flashing is commonly installed where a roof meets a vertical wall, including:
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Metal roof-to-wall intersections
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Compatible asphalt shingle roof-to-wall applications
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Residential and commercial roofing projects
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Roof additions and renovations
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Dormers and other roof-to-wall transitions
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Replacement of deteriorated or improperly installed flashing
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New construction requiring a professional metal flashing finish
When properly installed with compatible roofing materials and appropriate counter flashing or wall cladding, sidewall flashing helps protect vulnerable roof intersections from water intrusion.
Easy Installation – No Metal Bending Required
Our sidewall flashing arrives pre-bent and ready for installation.
The 5½-inch horizontal leg extends beneath the roofing material, while the 4-inch or 6-inch vertical leg extends upward against the adjoining wall.
The formed Waterlock provides an additional feature to help manage water at the flashing edge.
The manageable 40-inch and 80-inch sections are easier for one person to handle and position than long, continuous flashing pieces.
Installation Tips:
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Install the horizontal leg beneath the roofing material according to the applicable roofing system requirements.
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Extend the vertical leg against the wall and cover it with compatible wall cladding or counter flashing.
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Maintain proper overlaps between flashing sections.
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Use appropriate fasteners and compatible sealants where required.
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Follow roofing manufacturer instructions and applicable building codes.
For brick or masonry walls, our coordinating Brick Wall Counter Flashing can be installed over the vertical leg to help create a complete roof-to-wall flashing assembly.
Complete Your Roofing Project
We also offer complementary roofing products to help you complete your installation:
Choose coordinating materials and colors for a clean, professional finish.
Ordering, Shipping & Customer Support
Fast Shipping: Most orders ship within 1–2 business days.
Free Shipping: Standard shipping is included to the lower 48 states.
Protective Packaging: All flashing is carefully packaged to help prevent damage during transit.
Protective Film: Painted finishes include removable protective film where applicable.
Free Work Gloves: Included with orders.
Need a Color Sample? Actual colors may vary depending on lighting and screen settings. Request a color sample before ordering.
Need a Custom Size? Contact us to discuss your custom flashing requirements.
Questions? We're Here to Help.
With more than 50 years of sheet metal industry experience, we understand roofing materials and the importance of proper fit and finish.
Call or Text: 866-773-1177
Email: support@metalroofingscrews.com
Order your metal sidewall flashing with Waterlock today and get professional-grade, pre-formed roof flashing delivered directly to your door.
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