10/05/2026
Cleaned the gutters and they still overflow in a hard rain?
The gutter is only as good as its downspouts. In Baton Rouge, NOAA data shows a 10-year storm can drop rain at nearly 10 inches an hour in five-minute bursts. A standard 2x3 downspout is smaller than one manufacturer recommends for anything bigger than a porch.
Our new guide covers how downspouts are sized and how to tell a sizing problem from a clog.
Read the full guide: https://performancepatioandgutters.com/gutters/downspout-sizing-gutters-overflow/