{"product_id":"custom-louvered-chimney-cap","title":"Custom Louvered Chimney Cap — Copper, Kynar Aluminum, Galvalume \u0026 Stainless Steel","description":"\u003c!-- ══════════════════════════════════════════════════════════════════\n     Archaic Metal — Louvered Chimney Cap (LV) Product Description\n     Follows CP\/SP\/H\u0026R\/MF block structure\n     June 26, 2026\n     ══════════════════════════════════════════════════════════════════ --\u003e\n\n\u003c!-- ── Profile intro ──────────────────────────────────────────────── --\u003e\n\u003cp\u003eThe Louvered Chimney Cap is a hand-fabricated custom cap built with horizontal fin panels on all four sides. Each fin is brake-formed from the same sheet metal as the cap body — no separate extrusions, no plastic, no painted steel clips. The result is a cap that vents freely, sheds rain, and looks like it belongs on the chimney rather than bolted on as an afterthought.\u003c\/p\u003e\n\n\u003cp\u003eI build every cap to your exact chimney dimensions from my shop in Berlin, NJ. Standard sizes and off-the-shelf boxes don't enter into it.\u003c\/p\u003e\n\n\u003c!-- ── What It Does ───────────────────────────────────────────────── --\u003e\n\u003ch2\u003eWhat It Does\u003c\/h2\u003e\n\u003cp\u003eThe louvered panels cover the full perimeter of the cap while allowing air to move freely through the fin gaps. Rain hits the angled fins and sheds outward rather than dropping straight down into the flue. The closed top lid with stainless steel mesh keeps birds and debris out while the fins handle ventilation on the sides. For decorative or gas-insert chimneys that don't need a lid, the open-top option removes the lid and screen entirely.\u003c\/p\u003e\n\n\u003c!-- ── Louvered Fin Construction ──────────────────────────────────── --\u003e\n\u003ch2\u003eLouvered Fin Construction\u003c\/h2\u003e\n\u003cp\u003eThe fins run horizontally around all four sides of the cap body. Standard configuration is 4 fins per side. Additional fins — up to 8 per side — increase ventilation area and visual density for taller chimney openings. Each fin is formed from the same-gauge sheet as the rest of the cap: 16 oz copper, .032 Kynar aluminum, 24-gauge Galvalume, or 24-gauge stainless steel.\u003c\/p\u003e\n\n\u003cp\u003eKynar caps with fins above the standard 4 include a color adder per extra fin — the Kynar 500 coating is applied to each fin at the coil level before fabrication, so every additional fin carries a proportional material cost.\u003c\/p\u003e\n\n\u003cp\u003eThe fascia rail frames the top of the louver section. Corner pieces are mitered. The premium top-mount flange wraps the base of the cap and sets on the chimney crown — 8\" rip, 1\" exposed face, mitered corners.\u003c\/p\u003e\n\n\u003c!-- ── Material Options ───────────────────────────────────────────── --\u003e\n\u003ch2\u003eMaterial Options\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e16 oz Copper\u003c\/strong\u003e — Mill-finish copper that develops a natural verdigris patina over years of exposure. The most durable option and the most visually distinctive as it ages. All copper components — lid, fins, body, flange — are the same alloy and will patina uniformly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKynar Aluminum (.032)\u003c\/strong\u003e — PVDF Kynar 500 coating in any standard color: Matte Black, Matte White, Dark Bronze, Weathered Zinc, Charcoal Grey, Copper Penny, and more. Color holds indefinitely — Kynar doesn't fade, chalk, or peel under normal exposure. Lightest weight option, which matters for LTL freight on larger caps.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e24-Gauge Galvalume Plus\u003c\/strong\u003e — Zinc-aluminum alloy coated steel. The most economical option. Mill-finish silver-grey that weathers to a consistent matte tone. Correct choice when budget is the primary driver and aesthetics are secondary.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStainless Steel 2B 304\u003c\/strong\u003e — 24-gauge 304 alloy with a 2B (cold-rolled, lightly polished) mill finish. Ideal for coastal environments, salt air, or any installation where corrosion resistance matters more than color. Heavier than aluminum but holds up in conditions that would compromise lesser metals.\u003c\/p\u003e\n\n\u003c!-- ── Specs ───────────────────────────────────────────────────────── --\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCap styles:\u003c\/strong\u003e Louvered (LV) — horizontal fin panels, 4 sides\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard fins:\u003c\/strong\u003e 4 per side (upgradeable to 5–8)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrip edge height:\u003c\/strong\u003e 2\" – 5\" (3\" standard)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange:\u003c\/strong\u003e Premium top-mount, 8\" rip, 1\" face, mitered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLid:\u003c\/strong\u003e Removable with stainless steel mesh screen (or open-top)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize range:\u003c\/strong\u003e 18\" × 18\" minimum · 60\" × 120\" maximum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Copper · Kynar Aluminum · Galvalume · Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFasteners:\u003c\/strong\u003e Stainless steel rivets throughout\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e Berlin, NJ\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- ── Installation ───────────────────────────────────────────────── --\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cp\u003eLouvered caps set on top of the chimney crown — no flue liner penetration required. The premium flange sits flush on the crown and the cap rests on it. Measure the outside of your chimney at the crown, not the flue tile. Width is always the shortest dimension. Add at least ¼\" to each measurement so the cap slides on without binding.\u003c\/p\u003e\n\n\u003cp\u003eOne person can handle installation on most residential caps. Larger caps benefit from a second set of hands for positioning. No special tools required beyond a caulk gun and a tube of elastomeric sealant for the flange-to-crown joint.\u003c\/p\u003e\n\n\u003cp\u003eQuestions about measuring or fitting? Call or text (609) 352-9840.\u003c\/p\u003e\n\n\u003c!-- ── Wood-Framed Chase ───────────────────────────────────────────── --\u003e\n\u003ch2\u003eWood-Framed Chase\u003c\/h2\u003e\n\u003cp\u003eLouvered caps work on wood-framed chases as well as masonry chimneys. The flange sets on the chase top — use a closed-cell backer rod and elastomeric sealant at the perimeter joint to keep the connection watertight. If your chase top is rotted or needs replacement before the cap goes on, that's worth addressing first — a new cap on a failing chase top is a short-term fix.\u003c\/p\u003e\n\n\u003cp\u003eNot sure if a louvered style is right for your chase? See \u003ca href=\"\/blogs\/chimney-cap-guides\"\u003echimney cap guides\u003c\/a\u003e or call (609) 352-9840.\u003c\/p\u003e\n\n\u003c!-- ── Shipping ────────────────────────────────────────────────────── --\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eCustom louvered caps ship LTL freight in a custom-built OSB crate. Freight cost depends on cap size and delivery ZIP — I quote freight separately after you submit your dimensions. Freight is calculated on actual crate weight and dimensions to your carrier. I use ABF Freight for most shipments.\u003c\/p\u003e\n\n\u003cp\u003eTypical lead time is 2–3 weeks from order confirmation. Call or text (609) 352-9840 to discuss timeline before ordering if you have a hard deadline.\u003c\/p\u003e\n\n\u003c!-- ── About ────────────────────────────────────────────────────────── --\u003e\n\u003ch2\u003eAbout Archaic Metal\u003c\/h2\u003e\n\u003cp\u003eI'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.\u003c\/p\u003e\n\n\u003cp\u003eMore on how I build caps: \u003ca href=\"\/blogs\/chimney-cap-guides\/how-chimney-caps-are-made\"\u003eHow Chimney Caps Are Made\u003c\/a\u003e · \u003ca href=\"\/blogs\/chimney-cap-guides\/copper-vs-aluminum-chimney-caps\"\u003eCopper vs. Aluminum\u003c\/a\u003e\u003c\/p\u003e\n\n\u003c!-- ── Callout ─────────────────────────────────────────────────────── --\u003e\n\u003cdiv style=\"background:#f7f4f0;border-left:4px solid #6b3a2a;padding:16px 20px;margin:24px 0;border-radius:0 6px 6px 0;\"\u003e\n  \u003cp style=\"margin:0;font-size:15px;line-height:1.7;\"\u003e\u003cstrong\u003eBuilt to your chimney.\u003c\/strong\u003e Every louvered cap is custom fabricated in Berlin, NJ. Enter your dimensions above to see your price — or call \/ text \u003ca href=\"tel:6093529840\"\u003e(609) 352-9840\u003c\/a\u003e for a freight quote to your door.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Archaic Metal","offers":[{"title":"Galvalume Plus- $1000.00","offer_id":48433485578494,"sku":null,"price":1000.0,"currency_code":"USD","in_stock":true},{"title":"Stainless Steel- $1100.00","offer_id":48433489215742,"sku":null,"price":1100.0,"currency_code":"USD","in_stock":true},{"title":"Kynar Aluminum- $1150.00","offer_id":48433486790910,"sku":null,"price":1150.0,"currency_code":"USD","in_stock":true},{"title":"16oz Copper- $1250.00","offer_id":48433488003326,"sku":null,"price":1250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/7726\/7966\/files\/louver_cap_thumbnail_v2.jpg?v=1774523753","url":"https:\/\/archaicmetal.net\/products\/custom-louvered-chimney-cap","provider":"Archaic Metal","version":"1.0","type":"link"}