Gutter Types – Sectional or Seamless

If you want to install a gutter system yourself, your best bet is to go with Sectional Gutters sold in pieces. The drawback is that there is a chance that leaks will occur in the seams.

Seamless Gutters won’t leak because they don’t have seams. But because they are extruded to custom lengths on site using a portable machine, they must be installed by a contractor.

SHAPES & SIZES: U- and K-Shape

Gutters come in several sizes and shapes called profiles.  The most common are the U shape and the K shape.  The more important choice is the sizing of the gutters and the downspout.  Choices include 2×3-in or 3×4-in. rectangular shapes, as well as 3- or 4-in. round pipes.  Metal gutters are also available in different sizes.  The most popular is 5″ gutter which is typically paired with 2″ x 3″ downspout. 4″ gutter is more popular in areas where there is less rainfall.  Occasionally you will see 6″ gutter in markets where rainfall is particularly heavy.  A larger downspout, usually 3″ x 4″ is often used with 6″ gutter.  The larger downspout can also be used with 5″ gutter if there is a concern about excessive roof runoff.  Both gutter and downspout are readily available in 10′ lengths.