You may see an influx of granules in your downspouts after a storm.
Gravel in gutters.
The classic french drain is simple just a trench filled with gravel with sand on top.
Granules naturally separate from shingles over its life.
Bottle brush gutter guards stand up inside the gutters and collect debris.
It seems to be most prevalent early and later in the shingles life.
Are you getting roof granules or a sludge in the gutter.
It allows excess water to percolate.
Reverse curve gutter guards are made of a curved piece of thin metal that directs water into the gutters and everything else onto the ground.
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Shingle sediment is made up primarily of sand like granules or grit that separate from asphalt shingles and other small matter that sticks to the roof surface and washes into gutters.
It is common to see granules washed into the gutters and downspouts of your home after a new roof has been installed.
This could be caused by heavy rains or hail that beat on the roof and loosen the granules.
Watch this short video to learn exactly why.
A french drain is a system for eliminating excess water from the soil.
These are good for directing away large debris but they will not catch sand dirt and shingle sediment.
If the roof is reported to be new the granules shown in our photo are normal and not a worry.