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B Cone Standard Flashing
A roof penetration needs flashing that fits the detail and works with the surrounding membrane. Our B Cone Standard Flashing is a prefabricated cone flashing designed to help roofing crews seal penetrations on low-slope roofs. Made in Eugene, Oregon, it offers a consistent, ready-made option when the B Cone’s dimensions match your project.
We offer this roof cone flashing in TPO and PVC. Select the material that matches your roofing system, and confirm the penetration size and installation requirements before ordering. If the standard dimensions are not right for the job, our team can help you explore a custom cone flashing.
B Cone Flashing Dimensions
Check the measurements against your roof detail before selecting a product variant:
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Top: 2 inches
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Bottom: 6 inches
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Height: 12 inches
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Flange: 6 inches
These are the dimensions listed for our B Cone Standard Flashing. The flange provides material at the base for integrating the flashing with the roof system, while the cone surrounds the penetration above it. Proper fit and installation are essential to the completed seal.
Prefabricated Flashing for Efficient Roof Work
Forming a cone on the roof takes time, especially when a crew is working around other penetrations and changing weather. A prefabricated roof flashing gives installers a finished component to bring to the jobsite, reducing the fabrication work needed in the field.
At Acme Cone, we precision-cut and hand-weld our flashings, then inspect finished parts before shipping. That process reflects our focus on quality: dimensions should be consistent, and the product should be ready for the installer to evaluate and incorporate into the roof assembly. Our Eugene team brings hands-on roofing experience to that work and understands why details at penetrations deserve close attention.
The B Cone can be a useful option when you need:
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Cone flashing for roof penetrations that match its listed dimensions
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A TPO cone flashing for an appropriate TPO roof assembly
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A PVC cone flashing for an appropriate PVC roof assembly
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A prefabricated component that helps limit forming and welding work in the field
Always follow the roofing system manufacturer’s requirements when selecting and installing roof penetration flashing. If you need to secure the flashing at the top of a penetration, browse our standard products, including pipe and cone clamps, and confirm the correct clamp size for your application.
Built in Eugene, Shipped for Your Project
Acme Cone is based in Eugene, in the Pacific Northwest, where wet weather makes careful roof detailing a familiar priority. We pair that regional, hands-on experience with an efficient production and shipping process for customers across the country. Most orders ship within 72 hours, though timing varies by product and order. Contact us if your schedule requires a specific delivery date.
Our commitment to service also means helping you find the right option when the B Cone is not the right fit. You can compare our standard flashing products or ask about a made-to-order size. We would rather help you confirm the details before you order than have you try to make an unsuitable part work on the roof.
Order the Right B Cone Flashing
The B Cone Standard Flashing brings together precise dimensions, prefabricated construction, and a choice of TPO or PVC for compatible roof systems. Choosing the right material and checking the fit first helps your crew approach the penetration with a clear installation plan.
Review the available options on this page, and contact us at Acme Cone to discuss your roof detail. Whether you need this B Cone flashing or a custom solution, our team is ready to help you find a product that fits the work.
FAQs
What are the dimensions of the B Cone Standard Flashing?
The B Cone has a 2-inch top, 6-inch bottom, 12-inch height, and 6-inch flange. Check these measurements against your roof penetration before ordering.
Is the B Cone available in both TPO and PVC?
Yes. We offer TPO and PVC versions. Choose the material that matches your roofing system and confirm its installation requirements with the roof system manufacturer.
Why choose prefabricated cone flashing?
A prefabricated cone arrives formed and welded, reducing the fabrication work your crew needs to do on the roof. It also gives you a consistent part to inspect and fit to the penetration before installation.
What if the B Cone’s dimensions do not fit my project?
We make custom cone flashings for roof details that need different dimensions. Contact our team with your measurements, membrane type, and project requirements so we can discuss the options.
