Seams are always possible leak points in a gutter system. These joints may
allow water to leak out of the gutter and drip down, possibly damaging the
siding, splashing dirt onto the house, or eroding your yard. Seamless gutters
virtually eliminate this leakage problem. Seamless gutters have been
available for more than 40 years and are the most common items selected by
homeowners today. Seamless gutters are not totally seamless, but there are
fewer seams that can create such leak points.