5-Inch or 6-Inch Gutters?
Gutter size comes down to the roof. The steeper the roof and the more valleys it has, the faster water reaches the gutter and the more of it arrives in one spot.
Most newer homes in DFW, like the ones across Frisco, Allen and McKinney, have steep, cut-up rooflines with a lot of valleys. Those roofs generally need 6-inch gutters. A 6-inch gutter is only an inch wider, but it's rated to handle roughly 40 percent more water. Put a 5-inch gutter under a big valley and a hard Texas rain overruns it. The water goes over the front edge and lands where you least want it, against the foundation.
Older homes with lower, simpler roofs, like much of Richardson, North Dallas and the older parts of Plano, usually do fine with 5-inch. Randy looks at the roof before he recommends a size.



