The Board & Batten Top Vent is an extended height chimney cap with a clean architectural profile: solid flat panels on the body, a hip roof on top, and a screened vent section between them. No curves, no stepped crown — just vertical lines that read well on traditional and craftsman-style homes. If your chimney needs more height and you want a cap that looks like it belongs there, this is it.
Available in 16oz copper and Kynar-coated aluminum. Built to your exact chimney dimensions in my shop in Berlin, NJ.
What It Does
The board and batten panel body extends the effective chimney height above the crown without touching the masonry. A screened vent section runs the full perimeter between the body panels and the hip roof above — blocking rain, debris, and animals while keeping airflow open. The hip roof sheds water in all directions. The base flange sets on the chimney crown. No flue liner penetration required.
Building code requires a chimney to extend at least two feet above any roof surface, ridge, or obstruction within ten feet. When a chimney falls short, an extended height cap adds the needed height directly to the flue without masonry work — functioning the same way chimney pots did in the 18th century. Height problems also cause downdraft. If smoke backs up into the house when the wind picks up, a chimney that doesn't clear surrounding roof lines is often the reason. Adding height fixes it.
Unlike store-bought caps that sit on the clay flue tile, this cap covers the entire chimney crown — protecting the masonry itself from water infiltration, freeze-thaw damage, and the creosote acid that eats mortar. Crown repair runs $500–$3,000. A full rebuild runs $10,000–$20,000. A cap that covers the crown correctly prevents all of it.
What is a chimney crown — and why yours may already be cracking →
Board & Batten Construction
The body panels are flat sheet metal, brake-formed with vertical batten strips to create the board and batten profile. Above the body, a screened vent section runs the full perimeter before the cap transitions to the hip roof. The hip roof is four-sided, fully seamed, and pitches away from center in all directions.
The premium top-mount flange (CL-3.1) is an 8″ rip with a 2″ ledge, mitered corners directly on the chimney crown. Side mount uses a vertical drip edge skirt wrapping the crown exterior — no masonry penetration. Every component is the same material and gauge throughout, so copper patinas uniformly and Kynar color matches across every surface.
Specs
- Cap style: Board & Batten Top Vent (B&B) — flat panel body, screened vent section, hip roof
- Flange: Premium top-mount CL-3.1, 8″ rip, 2″ ledge, mitered — or side mount drip edge
- Screen: Stainless steel mesh, full perimeter vent section
- Size range: 18″ × 18″ minimum · custom to your dimensions
- Materials: 16oz Copper · Kynar Aluminum · Galvalume · Stainless Steel
- Fasteners: Stainless steel rivets throughout (copper rivets + brass mandrels on copper caps)
- Made in: Berlin, NJ
Have a Wood-Framed Chase?
If your chimney sits on a prefab wood-framed chase, you may need a chase cover before this cap goes on. The B&B cap mounts on top of the chase cover — it does not have a flat bottom with pre-cut holes for flue pipes. If there's currently no metal cover on your chase, you need both. Browse custom chimney chase covers →
About Archaic Metal
I'm Sean. I've been working copper and sheet metal since 1994, trained under master coppersmith Stephen L. Foss at Ye Olde Tin Shop in Haddonfield, NJ. Archaic Metal has been my operation since 2011 — one person, one shop in Berlin, NJ. Every cap I sell is one I fabricated. No outsourcing, no overseas production, no batch runs sitting on a shelf. Your cap is built to your dimensions after you order it.
Resources
- How to measure your chimney for a custom cap
- How much does a chimney cap cost?
- Why Chimneys Draw Poorly (And What Chimney Pots Got Right)
- Do chimney caps prevent chimney fires?
Built to your chimney. Every Board & Batten cap is custom fabricated in Berlin, NJ. Enter your dimensions above to see your price — or call / text (609) 352-9840 for a freight quote to your door.