There are many different gutter materials to choose from, including steel, aluminum, vinyl, and copper. Many types of gutters (steel and vinyl in particular) are sold in 10′ lengths and require dozens of seams fastened with slip fittings. Each one is a weak spot and a potential leak site. Another alternative well worth considering is the installation of seamless aluminum gutters. Seamless gutters must be fabricated on-site by a professional contractor.
The term seamless gutters can be confusing because there are seams in the system. The seams are only at the corners and downspout outlets. These joints are fastened more securely and sealed for stability and leak resistance. The Seamless Gutter itself is continuous which makes them both strong and visually more appealing.