Angle/Base Steel Flash One Hem — Wall-to-Roof Leak Protection
The Tamlyn BFH is a single-hem angle/base steel flashing designed for efficient wall-to-roof applications, providing reliable protection against water infiltration at walls, chimneys, and roof connections. The hem features a low opening of approximately 3/32", allowing for secure integration into the building envelope. This flashing is manufactured to suit a range of construction profiles and is available in multiple sizes to meet project-specific requirements.
Unlike generic flashing options, the BFH is available in builder-grade (Bldr), standard (STD), and 26-gauge galvanized (26 Ga GZD) steel, as well as a full range of painted finish options — giving contractors flexibility across both functional performance and aesthetic compatibility with the surrounding structure. Additional custom sizes can be sourced as special orders directly through Tamlyn.
Key Features & Benefits
Single-Hem Low-Opening Design
The hem on the BFH features a low opening of approximately 3/32", which allows for tight integration at wall and roof interfaces. This tight hem profile minimizes the gap where moisture could intrude, making it particularly effective at chimney-to-roof and wall-to-roof junctions.
Multiple Material Options
Available in Bldr, STD, or 26 Ga GZD steel, contractors can select the material grade that best suits the structural requirements and budget of the project. The galvanized option provides enhanced corrosion resistance for exposure-prone applications.
Factory Painted Color Options
For painted applications, the BFH is stocked in Almond (AM), Brown (BR), Black (BK), Charcoal (CB), and White (WH). This allows contractors to match flashing to siding, trim, or roofing colors directly from stock without special fabrication lead times.
Special Order Sizing Availability
While the BFH is stocked in standard sizes, non-standard dimensions are available as special orders. This allows project teams to address unique architectural details without field fabrication or improvised solutions that could compromise weather resistance.
Angle/Base Profile for Structural Stability
The angled base profile of the BFH ensures stable placement at wall-to-roof transitions, maintaining consistent contact with both surfaces during and after installation. This reduces movement and the risk of gap formation over time.
Broad Size Range from Stock
The BFH line covers multiple size configurations (including BFH1033, BFH10435, BFH1044, BFH10455, BFH10545, BFH1055, BFH10655, BFH1066, and more), accommodating a wide range of standard construction dimensions directly from stock inventory.
Common Applications
Wall-to-Roof Transitions
The BFH is specifically engineered for efficient wall-to-roof flashing, sealing the joint where vertical wall assemblies meet sloped or flat roof surfaces to prevent water intrusion.
Chimney Flashing
Used at chimney bases where masonry or framed chimney structures meet the roofline, the BFH provides a durable, formed metal barrier against water entry at this high-risk leak point.
Base Flashing at Parapet Walls
The angled profile is well-suited for use at the base of parapet walls, directing water away from the wall-roof interface and into drainage systems.
Residential Roofing Applications
Commonly installed during new residential construction and re-roofing projects where code-compliant metal base flashing is required at wall penetrations and changes of plane.
Commercial Construction Flashing
Suitable for light commercial applications where standard steel flashing components are specified at transitions between vertical cladding and roofing assemblies.
Painted Finish Exterior Trim Integration
When ordered in painted finishes, the BFH integrates visually with painted siding and trim systems, maintaining a clean appearance at exposed flashing locations.
Compatible Materials
- Builder-grade (Bldr) steel
- Standard (STD) steel
- 26 Gauge Galvanized (26 Ga GZD) steel
- Painted finishes: Almond (AM), Brown (BR), Black (BK), Charcoal (CB), White (WH)
- Special order colors available upon request
- Compatible with standard wall sheathing and roofing substrates at transition zones
Available Sizes
| Item ID | Best For |
|---|---|
| BFH1033 | Smaller wall-to-roof transitions requiring 3" x 3" profile |
| BFH10435 | Asymmetric profiles for varied wall and roof surface offsets |
| BFH1044 | Standard 4" x 4" angle base applications |
| BFH10455 | Applications requiring 4" leg with 5.5" base |
| BFH10545 | Applications requiring 5.5" leg with 4" base |
| BFH1055 | Larger transitions requiring 5" x 5" profile |
| BFH10655 | Wide base applications with 6" leg and 5.5" base |
| BFH1066 | Large-scale wall-to-roof transitions requiring 6" x 6" profile |
Product Documents
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Angle/Base Steel Flashing, One Hem |
| Hem Opening | Approximately 3/32" |
| Material Options | Bldr (Builder), STD (Standard), 26 Ga GZD (26 Gauge Galvanized) |
| Available Painted Colors | Almond (AM), Brown (BR), Black (BK), Charcoat (CB), White (WH) |
| Special Order Colors | Available upon request |
| Special Order Sizes | Available upon request |
| Stocked Item IDs | BFH1033, BFH10435, BFH1044, BFH10455, BFH10545, BFH1055, BFH10655, BFH1066 |
| Application | Wall-to-roof transitions, chimney flashing, base flashing |
| Manufacturer | Tamlyn (R.H. Tamlyn & Sons, Inc.) |
Frequently Asked Questions
Q: What is the hem opening size on the BFH flashing?
A: The hem on the BFH is a low opening of approximately 3/32", designed to minimize moisture intrusion while allowing for standard installation at wall and roof interfaces.
Q: Can I order the BFH in non-standard sizes?
A: Yes. While a range of standard sizes are stocked, additional sizes are available as special orders. Contact Tamlyn directly at 1-800-334-1676 to discuss custom dimensions.
Q: What material grades are available for the BFH?
A: The BFH is available in Builder (Bldr), Standard (STD), and 26 Gauge Galvanized (26 Ga GZD) steel. Select galvanized for applications with higher moisture or corrosion exposure.
Q: What painted finish colors are available from stock?
A: Stock painted colors include Almond (AM), Brown (BR), Black (BK), Charcoal (CB), and White (WH). Other colors are available as special orders.
Q: How do I specify a painted color when ordering?
A: When ordering a painted BFH, append the color code to the item ID (e.g., BFH1044-AM for Almond). Confirm the exact ordering format with your Tamlyn sales representative.
Q: Is the BFH suitable for both residential and commercial applications?
A: Yes. The BFH is appropriate for standard residential and light commercial wall-to-roof and chimney flashing applications where formed metal base flashing is required by code or specification.