How do you fix gutters that overflow?

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Start with the simple causes: clear clogs in the gutter and especially in the downspout, then check that the gutter slopes toward its outlet. If clean, properly pitched gutters still overflow in heavy rain, the fix is more capacity: larger downspouts, an extra downspout, 6-inch gutters, or a splash guard where a valley dumps water. Step 1: Watch it in the rain Note exactly where it overflows. Over the whole run suggests a clog or undersizing. One spot in the middle suggests a sag. An inside corner suggests a valley overshoot. Water coming from behind the gutter is not overflow at all; it points to a missing or short drip edge. Step 2: Clear the system Scoop the gutters, then run a hose down each downspout. If water backs up, the clog is usually at the top outlet or in an elbow. Tapping the downspout helps find it; a packed section sounds dull. Step 3: Check the slope Gutters need a slight, steady fall toward each outlet, commonly around 1/4 inch over 10 feet. A run that is flat or slopes the wrong way holds water and spills. Reset hangers to correct it. Step 4: Add capacity if needed Swap 2 by 3 inch downspouts for 3 by 4 inch, which have twice the opening area. Add a downspout so long runs drain both ways. Move up to 6-inch gutters on large or steep roof planes. Add a splash guard at valley corners where water shoots past the lip. Step 5: Keep it clear Under heavy trees, a good guard or more frequent cleanings keep the problem from coming back. Overflow left alone rots fascia and the decking edge and soaks t

How do you fix gutters that overflow?

Step 1: Watch it in the rain

Step 2: Clear the system

Step 3: Check the slope

Step 4: Add capacity if needed

Step 5: Keep it clear

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