Half Round Gutter


DMI’s Half-Round gutter provides a unique aesthetic appearance to your building and complements your roof application. Available in Galvalume®, aluminum, stainless steel, and copper. DMI offers a full line of accessories including customized gutter support brackets, mitered corners, end caps, splice plates, expansion joints, outlets, downspouts, elbows, and downspout straps. Available in 10′-0″ lengths.

5″ 2 1/2″ 5 1/4″ 3″ 2 1/2″ Radius
6″ 3″ 6 1/4″ 3 1/2″ 3″ Radius
7″ 3 1/2″ 7 1/4″ 4″ 3 1/2″ Radius
8″ 4″ 8 1/4″ 4 1/2″ 4″ Radius
9″ 4 1/2″ 9 1/4″ 5″ 4 1/2″ Radius
10″ 5″ 10 1/4″ 5 1/2″ 5″ Radius


DynaClad® 70% Full Strength PVDF Paint Finish, Natural Copper or Stainless Steel

Choice of over 32 Colors for Galvalume® and Aluminum


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The inner shape of a half-round gutter is smoother than other gutter styles, this reduces the likelihood of corrosion since there are fewer areas where wetness can hold.   In addition, their smooth surface allows waterborne debris to flow more freely instead of getting caught on rough edges or sides, which can lead to clogs over time.

Product Offerings

Offered in a large variety of materials and colors.

  • Galvalume® (22 ga. & 24 ga.) – See our color chart for standard color offering
  • Stainless Steel (22 ga. & 24 ga.)
  • Aluminum (.050, .040, & .032) – See our color chart for standard color offering
  • Copper (20 oz. & 16 oz.)

Support Brackets

Find the right bracket for your project.

Vertical Fascia

Non-Vertical Fascia – L-Support


Vertical Fascia – V-Support

Roof Mount

Roof Mount – Non-Vertical Fascia


Other Accessories

Perfect for giving that clean finished look to your half round gutter project.

End Caps

Inside Miter

Outside Miter

AIA Continuing Education

DMI is committed to providing you with high-quality expert-level education in accordance with the AIA/CES standards. The courses we offer are designed to meet the needs of architects and typically run one hour in length. All Attendees will earn 1 Learning Unit. Some of the courses offered will meet the Health, Safety, and Welfare (HSW) requirements as well as the Green Building Certification Institute (GBCI) credits.

information on available courses

Our Warranties are Second to None

DMI total system warranties protect all aspects of your metal envelope system, whether that be the watertightness of the roof or siding, the Galvalume ® steel, or the durable PVDF KYNAR® finish. When looking at warranties for your system, it is important to note that not all warranties are created equal. DMI warranties ensure the watertightness of all flashing conditions, trims, curbs, valleys, and penetrations. Building owners are protected with a total system warranty - “from the deck up” when using DMI insulation, fasteners, and underlayment. Our warranties are backed-up by a full-service Engineering Department, generating project specific shop drawings. Quality control is monitored by a minimum of two on-site inspections by our Field Technical Inspectors. DMI Total System Warranties give building owners and design professionals confidence that they are receiving the highest quality and most complete warranty available in the industry.

Browse Our Warranties