Types of Seamless Gutter Profiles for Portable Rollforming Machines

Updated for 2025

Portable gutter machines can produce seamless gutter profiles in various styles and sizes. That said, the most common go-to for most homeowners is the K-style. You’ll see them on houses, apartment buildings–just about everywhere. New Tech Machinery (NTM) has manufactured the Mach II K-style gutter machine for over 30 years.

At New Tech Machinery, there’s a lot to consider when selecting which portable rollforming machine to use for your gutter business. It’s important to know not only the features of the portable gutter machine you want, but also which profile produces, how each profile is commonly used, and the profile features.

In this article, we’ll dive into the gutter profile variations we offer.

Types of Gutter Systems

As you probably know, there are different types of gutter systems for commercial and residential buildings. To figure out which kind of gutter system and machine is best for your particular application, consider these three factors:

• The length and size of the roof – The length and size of your roof will dictate how long you need your gutters to be.
• The slope of the roof – The slope of your roof can play a role in determining what size gutters you’ll need to drain water away from the building effectively.
• How much rain your region gets – The amount of rainfall you receive will help you choose the most efficient size and style of the gutter system.

Gutters are made through the rollforming process, either as a seamless system, or sectional. 

Seamless gutters can be made on-site, to the actual length of the roofline. There’s also less risk of them leaking since you don’t have any seams in the gutter system. Seamless gutters also speed up installation since it doesn’t require seam welding.

Sectional gutters are sold in pieces and installed as separate components, usually by soldering or caulking them together before installation. Since these gutters have seams from two pieces joined together, the chances of leaks happening are greater unless they are regularly maintained, sealed, and cleaned.

Some of the different gutter profile styles you can use are:

• K-style
• Fascia
• Box
• Half Round

For this article, we’ll focus on the gutter profiles available with New Tech Machinery’s Mach II portable gutter machines: K-style.

K-Style Gutter Profiles

K-style gutters are the most popular gutter style in North America and get their name because they slightly resemble the letter “K” when looked at from the side. They can be installed right onto the fascia board because of their flat backs, which helps save you money on brackets. 

They can carry twice as much water as a half-round gutter due to their flat bottom and angled sides. However, K-style gutters might be a little harder to clean due to their stylistic design in the front. 

New Tech Machinery’s MACH II™ portable gutter machines can make various K-style gutter profiles, including:

MG5-SB5 – 5” with Straight Back

Gutter material: 30 ga. to 24 ga. steel (painted, Galvalume, coated galvanized), .019“ to .032” painted aluminum, or 16 oz. to 20 oz. copper 3/4 hard

Gutter size: 5”

Machines that make this profile: MACH II 5” and MACH II 5”/6”

MG5-HK5 – 5” with Alcoa Hook

Gutter material: 30 ga. to 24 ga. steel (painted, Galvalume, coated galvanized), .019“ to .032” painted aluminum, or 16 oz. to 20 oz. 3/4 hard copper

Gutter size: 5”

Machines that make this profile: MACH II 5” and MACH II 5”/6”

MG5-BB5 – 5” with Bottom Bead

Gutter material: 30 ga. to 24 ga. steel (painted, Galvalume, coated galvanized), .019“ to .032” painted aluminum, or 16 oz. to 20 oz. copper 3/4 hard

Gutter size: 5”

Machines that make this profile: MACH II 5” and MACH II 5”/6”

MG6-SB6 – 6” with Straight Back

Gutter material: 30 ga. to 24 ga. steel (painted, Galvalume, coated galvanized), .019“ to .032” painted aluminum, or 16 oz. to 20 oz. copper 3/4 hard

Gutter size: 6”

Machines that make this profile: MACH II 6” and MACH II 5”/6”

MG6-HK6 – 6” with Alcoa Hook

Gutter material: 30 ga. to 24 ga. steel (painted, Galvalume, coated galvanized), .019“ to .032” painted aluminum, or 16 oz. to 20 oz. 3/4 hard copper

Gutter size: 6”

Machines that make this profile: MACH II 6” and MACH II 5”/6”

MG6-BB6 – 6” with Bottom Bead

Gutter material: 30 ga. to 24 ga. steel (painted, Galvalume, coated galvanized), .019“ to .032” painted aluminum, or 16 oz. to 20 oz. copper 3/4 hard

Gutter size: 6”

Machines that make this profile: MACH II 6” and MACH II 5”/6”

The Bottom Line on Gutter Profiles

While it’s essential to know the differences in gutter profiles to properly produce the profile you desire, it’s also crucial to know:

• Which portable gutter machines can rollform each style
• What material is best to use for each profile
• The differences and features of each gutter profile

Having this information can help you narrow down which machine will best suit your needs and produce high-quality profiles for your customers. Also, you’ll want to learn about which machine accessories will best suit your operation.

Our goal is to help all of our clients choose the best portable gutter machine for their business, know which machines can manufacture each profile, and give you the best post-sales support so you can get the most out of your portable rollforming machine.

If you’re looking for help in choosing the right seamless gutter machine, or want to know more about our rollforming equipment and profiles, please feel free to contact our rollforming specialists.