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I am in the process of buying a home on a sloping lot, which has an extensive wooden deck extending out from the back of the house.
An inspection of the house revealed 1′ – 2′ of erosion under the deck, to the point where the foundation of the house has become exposed in areas. Deep grooves are scored in the earth under the deck, which matches the direction and spacing of the deck boards above. The house is located in northern Florida, where the rain can be torrential. If appears as is the rain that hits the deck is flowing through the deck’s gaps and is causing most of the erosion.
I am adding gutters and adding a runoff drainage system to the house. I plan on adding backfill to the foundation under the deck.
Any suggestions on how to avoid having this additional backfill being eroded as well?
Jon Trimble
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This has come up before, but then it was how to keep the water coming between the boards off of the deck underneath. Put a "roof" under the deck and collect the water with gutters and downspouts.
Just what I've read.
Rich Beckman
*Yup. And don't have the 'roof' right up against the bottom of the deck.
*Jon-Roof might be a joke, but I have a deck with a roof below constructed of 2x4 rafters at a low pitch with wiggle molding and corrugated fiberglass on it. It's to keep firewood dry underneath, not to control erosion, but it might work for you. Cheap to build anyway.If you can't see it, what about 10 mil visquene staked down with jute stakes? Might only last 5 years depending on sunlight exposure.-Tony S
*Landscape mat (cloth) covered with gravel or seashells would probably work.
*Jon Just make sure the gravel you put under there is big enough and heavy enuf to not wash away.Anything smaller than 1 1/2" could just be displaced by the next gully washer.
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I am in the process of buying a home on a sloping lot, which has an extensive wooden deck extending out from the back of the house.
An inspection of the house revealed 1' - 2' of erosion under the deck, to the point where the foundation of the house has become exposed in areas. Deep grooves are scored in the earth under the deck, which matches the direction and spacing of the deck boards above. The house is located in northern Florida, where the rain can be torrential. If appears as is the rain that hits the deck is flowing through the deck's gaps and is causing most of the erosion.
I am adding gutters and adding a runoff drainage system to the house. I plan on adding backfill to the foundation under the deck.
Any suggestions on how to avoid having this additional backfill being eroded as well?
Jon Trimble