re: Flexseal has just announced their new line of Flood Protection Products. What says the OT?

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like a 5 foot high wall of tarp. IT comes rolled in like 250-500 linear feet that you literally wrap the bottom of your house with.

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My neighbor uses tarp that goes down under roofing material to accomplish exactly this. Then he sandbags the bottom overlap on ground

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You'd also have to seal all the hardie board around the house.

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yes and that hardie plank will only stand up underwater so long. And I bet a ton of people who have siding still have the masonite siding which would probably fall to pieces in a hour

I don’t think it would work as advertised but any type of spray or sealant to the exterior walls before finishing couldn’t hurt if it’s not too expensive. I would’ve coated my exterior basement walls with the stuff to prevent leaks if it was available when I built our house.

Problem is flooding is kind of a zero sum game. If water finds one way in….same result as if you just left all the doors open.