The Modern Louvered Chimney Cap is the most architecturally detailed cap I build. A full-perimeter louvered body with integrated side screens, a double-stepped fascia above it, curved standing seam panels tapering upward to a crown, and a solid removable lid on top. Side mount or top mount. Built to your exact chimney dimensions in copper, Kynar-painted aluminum, or Galvalume. Stainless steel is not available in this style.
The profile reads like a cupola — louvered sides, curved standing seam roof, strong crown details above and below the curve. If you searched "cupola chimney cap," "blade chimney cap," "finned chimney cap," or "modern louvered chimney cap" and landed here, you're in the right place.
Also called a chimney topper, chimney rain cap, chimney cover, chimney shroud, or chimney surround — whatever you call it, this one is built to last.
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.
Top Mount Cap Measuring — Add 6" to the length and width of where you want the screen to sit on the chimney top. Top Mount vs Side Mount Guide →
Available in copper, stainless steel chimney cap, Kynar aluminum, and Galvalume. Stainless steel chimney caps and stainless chimney covers are built to the same spec and dimensions as every other material — contact me to order.
What It Does
The louvered body runs the full perimeter of the cap — horizontal fins with integrated side screens that block rain, debris, and animals while keeping airflow open. Above the louvers, a double-stepped fascia adds strong horizontal shadow lines and architectural definition before the profile transitions into curved panel sides. A crown detail wraps the cap at the roofline. The solid removable lid removes with a screwdriver for chimney sweeping or flue access.
Modern Louvered Construction
The louvered section is the base of the cap — 8 horizontal fins per side, brake-formed from the same sheet metal as the cap body. Above the louvers, a double-stepped fascia transitions into curved standing seam panels that taper inward as they rise. A crown wraps the cap at the top of the curved section. The solid lid sits above the crown and is removable for flue access.
Corners on the curved panel section are fully mitered. The curved panels are lock-seamed, not screwed or caulked. Every component — fins, fascia, panels, crown, lid — is the same material and gauge throughout, so copper patinas uniformly and Kynar color matches across every surface.
The premium top-mount flange (CL-3.4a) is an 8¾" 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.
Specs
- Cap style: Modern Louvered (MV) — louvered base, curved panel sides, crown, removable lid
- Fins: 8 per side, full perimeter
- Drip edge height: 2" – 5" (3¾" standard)
- Flange: Premium top-mount CL-3.4a, 8¾" rip, 2" ledge, mitered — or side mount drip edge
- Lid: Solid removable lid, always included
- Screen: Stainless steel mesh, integrated behind fins
- Size range: 24" × 24" minimum · 60" × 120" maximum
- Materials: Copper · Kynar Aluminum · Galvalume (no stainless)
- 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 rather than masonry, you may need a chase cover in addition to this cap. The cap mounts on top of the chase cover — it doesn't have a flat bottom with pre-cut holes for your flue pipe(s). If there's currently no metal cover on your chase top, you need both.
Masonry chimney or wood-framed chase — how to tell the difference → | 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.
More on how I build caps: How Chimney Caps Are Made · Copper vs. Aluminum
Built to your chimney. Every Modern Louvered 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.