As fall leaves begin to carpet the lawn, tackling your gutters early seems like a proactive way to check a major chore off your seasonal home maintenance list. However, clearing your downspouts too soon in the season could be a costly waste of time that almost guarantees you will have to haul out the ladder a second time before winter sets in.

Timing your fall gutter prep requires a delicate balance between letting the canopy clear and protecting your home's foundation from heavy rains. Here is why jumping the gun on gutter cleaning backfires — and the exact window to do it right.

The temptation to clear gutters during the first crisp weekend of fall is understandable, but sweeping them while trees are still shedding is an exercise in futility.

When you scoop out leaves while the surrounding canopy is only partially bare, the very next fall breeze or rainstorm will dump a fresh layer of dry foliage, twigs, and oak tassels straight into your clean troughs. Within a week, those newly cleared channels fill right back up.

Worse still, early fall leaves are often dry and lightweight. Rather than packing tightly at the bottom of the trough, they float freely into the top of downspouts, creating quick, stubborn jams at the elbows that trap subsequent rainfall.

Wait too long, however, and wet, freezing leaves turn into a heavy, sludge-like paste that weighs down your fascia boards and pulls the gutters away from your roofline.

To avoid climbing the ladder twice, follow the 80 percent rule: wait until roughly 80% of the surrounding trees have shed their leaves before doing your primary fall clear-out .

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