If a roof is changed from shingles to metal there is often an impact on gutters and/or gutter guards. Generally speaking, a metal roof needs 6 inch gutters because rain runs off of metal much, much faster than it does from a shingled roof.
In addition, in many cases a metal roof is installed in such a way that it protrudes too far over, and too deeply into, a home’s existing gutters, which are usually the 5 inch size.
If a metal roof extends into the gutter much further than the shingles did, then the metal reduces the size of the open area of the gutter. This in turn decreases the gutter’s ability to receive runoff from the roof because the run off is now trying to enter a narrower opening. As a result, the installation of a metal roof may necessitate the removal of 5 inch gutters and their replacement with 6 inch gutters. Metal roofing may also generate other consequences as well. Estimates, prices and contracts may have to be recalculated if a metal roof has been installed after these documents were written or if prices were quoted verbally.
Posted in: Gutters | Gutter Guards