Angle/Base Steel Flash No Hem - BF - Pack of 100

Angle/Base Steel Flash No Hem — Reliable Wall-to-Roof Leak Protection

The Tamlyn BF Series Angle/Base Steel Flash No Hem is a precision-formed steel flashing angle designed for efficient wall-to-roof transitions. It protects against water intrusion at walls, chimneys, and roof connections where moisture infiltration is most likely to occur. Fabricated from durable steel in Builder (Bldr), Standard (STD), or 26 Gauge Galvanized (GZD) material, it is engineered for professional installation in both residential and commercial construction. Painted finish options are available in Almond, Brown, Black, Charcoal, and White to match common exterior color schemes.

Unlike hemmed flashing options, the No Hem design provides a clean edge profile suited for specific installation methods where a raw edge is preferred or required. Angles other than 90° are available as a special order, giving contractors flexibility on non-standard roof geometries. The BF Series covers a broad range of leg dimension combinations — from 1"×2" through 6"×12" — making it adaptable to a wide variety of flashing conditions across different roof slopes and wall thicknesses.

Key Features & Benefits

Steel Construction in Multiple Gauges

Available in Builder, Standard, and 26 Gauge Galvanized steel, contractors can select the material weight best suited to the structural requirements and exposure conditions of the job. Heavier gauge options provide increased rigidity and longevity in high-wind or high-moisture environments.

No Hem Edge Profile

The No Hem design delivers a clean, flat edge that integrates smoothly into specific wall-to-roof assemblies. This profile is preferred in applications where additional material bulk at the edge would interfere with adjacent trim or cladding components.

Standard 90° Angle with Special Order Flexibility

The standard 90° angle accommodates the most common wall-to-roof configurations, while non-standard angles are available as special orders. This ensures the product can be specified for complex or unconventional roof assemblies without requiring field modification.

Painted Color Options for Finished Aesthetics

Five standard paint colors — Almond (AM), Brown (BR), Black (BK), Charcoal (CB), and White (WH) — allow the flashing to blend with common siding, trim, and roofing palettes. Custom or special order colors are also available for projects with specific aesthetic requirements.

Wide Range of Leg Dimension Options

With item IDs spanning multiple A and B leg combinations — from BF1012 (1"×2") through larger configurations — the BF Series covers the full spectrum of flashing conditions. Contractors can specify the exact leg dimensions needed for code compliance and proper water shedding geometry.

Efficient Wall-to-Roof Application

Designed specifically for wall-to-roof and chimney-to-roof transitions, the BF Series provides a reliable, low-profile barrier against water intrusion at these critical junctions. The angle geometry ensures water is directed away from the wall assembly and onto the roof surface or into the drainage plane.

Common Applications

Wall-to-Roof Transitions

The primary application for the BF Series is sealing the junction between an exterior wall and a roof plane, where water pooling and wicking are most likely without proper flashing.

Chimney-to-Roof Connections

Installed at the base of chimneys where they meet the roof surface, this flashing prevents water from infiltrating behind the masonry and into the roof deck or wall cavity.

Parapet and Low-Slope Roof Details

The angle profile is well suited to base flashing at parapet walls on low-slope commercial roofs, where water management at the wall-to-deck junction is critical to building envelope performance.

Dormer Base Flashing

Used at the base of dormers where the dormer wall meets the main roof slope, providing a continuous barrier against water entry at this common leak point.

Skylight and Curb Flashing

The angle base configuration can be adapted for use at skylight curbs and roof penetrations where a rigid metal flashing leg is needed against vertical and horizontal surfaces simultaneously.

Exterior Trim and Cladding Integration

Where exterior cladding systems terminate at a roof plane, the BF Series provides a solid metal transition that accommodates expansion and protects the cladding system's lower edge from moisture damage.

Compatible Materials

• Asphalt shingle roofing systems
• Metal roofing panels
• Wood frame wall assemblies
• Masonry and brick chimney construction
• Fiber cement siding systems
• Vinyl and engineered wood siding
• Stucco and EIFS wall systems
• Low-slope and flat roof membranes at parapet walls

Available Sizes

Product Documents

• BF Series Catalog Page (PDF)

Technical Specifications

Frequently Asked Questions

Q: What is the difference between the BF No Hem and a double-hemmed base flashing?
A: The No Hem version has a clean, flat edge without a folded return, making it suitable for applications where edge bulk would interfere with adjacent components. Double-hemmed parts are recommended for retail outlet environments and situations where a safer finished edge is required for handling.

Q: Can I order BF flashing at angles other than 90°?
A: Yes. Angles other than 90° are available as special orders. Contact Tamlyn directly at 1-800-334-1676 to specify the required angle for your project.

Q: What material should I specify for coastal or high-moisture environments?
A: The 26 Gauge Galvanized (GZD) option provides the best corrosion resistance for high-exposure environments. For standard residential applications, Builder or Standard material weights are typically sufficient.

Q: How do I specify a painted finish when ordering?
A: Append the color code to the item ID when ordering: AM for Almond, BR for Brown, BK for Black, CB for Charcoal, WH for White. Colors outside of these five are considered special orders.

Q: Which item ID should I use for a 4" wall leg and a 4" roof leg?
A: Specify BF1044, which provides a 4"×4" equal-leg angle configuration suitable for standard equal-leg base flashing applications.

Q: Is this flashing compatible with EIFS or stucco wall systems?
A: Yes. The rigid steel angle profile is compatible with stucco and EIFS systems where a metal flashing termination is required at the roof or grade line per industry standards and building code requirements.