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Arts Galvanized Half Round Dormer Vent 12 in. x 24 in. Mill Steel Louvered
Regular price $104.00Orders start at $399 — combine any items to reach the minimum. Learn more
Arts Galvanized Half Round Dormer Vent 12 in. x 24 in. Mill Steel Louvered
The Arts Galvanized Half Round Dormer Vent is a 12 in. x 24 in., one-piece galvanized steel roof vent that brings maximum airflow into the attic. Its crimp-less face needs no sealant or solder, and louver blades deflect rain and snow. Sold individually, it suits composition shingle, shake or flat tile roofs with 4/12 to 5/12 pitches.
Key Features:
- Maximum airflow: Designed to provide maximum airflow into the attic, which prolongs roof life and can lower utility bills year-round.
- Crimp-less face: Crimp-less face eliminates the need for sealant or solder.
- One-piece steel: Lightweight 1-piece galvanized steel construction.
- Louvered protection: Louver blades deflect rain or snow while letting air move.
- Screened opening: Screened with 4 or 8 mesh expanded metal to keep pests out.
- Multi-roof fit: Designed for use with composition shingle, shake or flat tile roofs.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Arts |
| Sell unit | 1 vent, 12 in. x 24 in. |
| Product line | Half Round Dormer Vent |
| Material | Galvanized steel, 1-piece construction |
| Color / finish | Mill (galvanized) |
| Dimensions | 12 in. x 24 in. |
| Screen | 4 or 8 mesh expanded metal |
| Design | Crimp-less face, louver blades to deflect rain or snow |
| Roof pitch | Designed for roof pitches from 4/12 to 5/12 |
| Compatible roofs | Composition shingle, shake or flat tile |
| Construction | Lightweight, no sealant or solder required |
| Intended use | Attic ventilation through roof dormer |
| Pack quantity | 1 vent |
Coverage & How Much You Need:
One vent covers a single dormer opening. Size the number of vents to your attic ventilation requirement and pitch range of 4/12 to 5/12; net free area is not stated by the manufacturer.
Fit and Compatibility:
Made for composition shingle, shake and flat tile roof assemblies on 4/12 to 5/12 pitches. Flashing for the specific roofing material is installed at the vent perimeter per standard dormer vent practice.
Frequently Asked Questions (FAQ):
Q: What size is this vent?
A: It is a 12 in. x 24 in. half round dormer vent in mill galvanized finish.
Q: Does it need sealant or solder?
A: No, the crimp-less face eliminates the need for sealant or solder.
Q: What roof types does it fit?
A: It is designed for composition shingle, shake or flat tile roofs with pitches from 4/12 to 5/12.
Q: Is it screened?
A: Yes, it is screened with 4 or 8 mesh expanded metal.
Q: How is it built?
A: It is lightweight, 1-piece galvanized steel with louver blades to deflect rain or snow.
Q: Why add attic ventilation?
A: Adequate attic ventilation prolongs the life of the roof and structure and can lower utility bills year-round.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
The one-piece galvanized design and crimp-less face speed up installation and reduce leak paths, since no solder or sealant is required at the face. Half round dormer vents are a good match for shake and tile roofs where the rounded profile blends with the roofing texture. Confirm the net free area against your attic ventilation calculation, since the manufacturer does not publish it here.
Wear gloves when handling galvanized steel edges and use roof fall protection when installing rooftop vents.
Order the Arts 12 in. x 24 in. galvanized half round dormer vent for lasting attic airflow.
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