Pros and Cons of Sectional Gutters
According to Ranger Roofing of Oklahoma, the best gutter company in Tulsa, OK, sectional gutters look like fully-enclosed pipes that were cut in half lengthwise. They are a half circle of gutter material, with the open half facing the roof or up.
They are gutters made by connecting different sections to create a 10-20 feet long piece with multiple joining seams. Connectors hold them together and have corner pieces, drop outlets and end caps. This is then linked to the downspout to channel water away from the house. They are different from seamless gutters.
Advantages of sectional gutters
Easy to install: Seasonal gutters are not ready made. You will buy them as component systems, and install them in pieces yourself. This explains why the majority of the do-it-yourself gutters are sectional. Though a professional can install them, you can D-I-Y quickly by cutting them into fitting sizes using a hacksaw. With this, you can save some money over having a contractor install a system.
Aesthetics: If well installed, they give the house an aesthetic look as they go well with rounded rooflines in some types of architecture. Particularly for older homes, they blend with the exterior of the house.

A smooth flow of rainwater: They are smooth on the inside allowing rainwater to flow smoothly. Any matter that would have clogged the gutter is ejected easily. This makes half round gutters easier to clean than K-style gutters.
Colors: They come in a wide range of colors giving you room to select the color that suits your taste or house design.
Customize: Since they are not ready made and come in different widths, they give you room to customize your home gutters.
Two-in-one: They are flexible such that you can transform a sectional gutter into a seamless gutter during installation
Materials: Sectional gutters are available in different materials including aluminum, copper, and galvanized or zinc-coated metal. This gives a choice of what gutter material to use.
Corrosion: Sectional gutters come with a smoother shape and are, therefore, not susceptible to corrosion
Disadvantages of sectional gutters
Leakage: Since they have corner pieces, end caps, and other such joining areas, sectional gutters have many seams, which could start leaking with time.
Cost: They cost more than K-style gutters because they are not readily available. Also, they require special threaded rods and hanger brackets to install them.
Capacity: They are not well suited for areas with a lot of rainfall because they can channel rainwater than K-style gutters of the same width.
Weight: They are heavier than K-style gutters because a lot of material is spent to install them.
Open: Since they face up and their upper part is open to the elements, we know they are prone to collecting any falling matter including leaves, which may clog them.