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Duct tape more effective than sandbags against flooding
Posted on 10/15/26 at 9:39 am
Posted on 10/15/26 at 9:39 am
Simply duct tape around your doors.
quote:
Tests using different tapes, sandbags and a variety of doors have been carried out at the University of Hull.
The research found, when compared with an unprotected door, flexible synthetic rubber tape reduced water leakage by 99%, duct tape by 97 to 98% and sandbags by 70%.
Stuart McLelland, professor of water science, said the research could provide "immediate benefits" by helping households "reduce the amount of floodwater entering their homes".
https://www.bbc.com/news/articles/c6073zym7x4mo
quote:
A number of different doors were placed in a large water tank, which was then flooded.
Some doors were taped and some protected with sandbags. Synthetic "sandless" sandbags were also tested.
Researchers found the lowest performing tape reduced leakage by 80%, while taped outward-opening doors performed better than those that opened inward.
Posted on 10/15/26 at 9:39 am to Shexter
Duct tape is like pussy...it's undefeated
Flex Seal...a close #2
Flex Seal...a close #2
This post was edited on 10/15/26 at 9:41 am
Posted on 10/15/26 at 9:40 am to Shexter
FLEX SEAL
Posted on 10/15/26 at 9:41 am to Sam Quint
No shite was just adding that 
Posted on 10/15/26 at 9:42 am to LaBR4
quote:
No shite was just adding that
my adrenaline was jacked trying to be the first one to make the joke
Posted on 10/15/26 at 9:44 am to Sam Quint
You deserve the credit...amazing stuff that FlexSeal
This post was edited on 10/15/26 at 9:47 am
Posted on 10/15/26 at 9:45 am to LaBR4
Posted on 10/15/26 at 9:46 am to Shexter
Water seeps into buildings in a lot of other places besides doors. What are we gonna do, duct tape the entire bottom few feet of brick and siding homes?
Posted on 10/15/26 at 9:47 am to Shexter
Duct Tape
Baling Wire
????
3 items that can fix 90% of your problems
Guessing you want to put the Duct Tape on the outside where the pressure is on the non sticky side. If you did not on the inside, seems built out water pressure would not hold as well.
Posted on 10/15/26 at 9:47 am to LaBR4
Posted on 10/15/26 at 9:48 am to TDsngumbo
quote:Prolly, yeah
What are we gonna do, duct tape the entire bottom few feet of brick and siding homes?
Posted on 10/15/26 at 9:49 am to LaBR4
You laugh but I have my grandpas 1957 aluminum flat boat that leaked from the rivets and a few cracks. I sanded them down and brushed liquid flex seal on them about 8 years ago. I regularly run the boat with a 25hp engine and it holds all day without leaks. That stuff is wild
Posted on 10/15/26 at 9:51 am to LaBR4
In that picture, is that the tape, or rolled-on goo that peals off?
Posted on 10/15/26 at 9:52 am to TDsngumbo
quote:
Water seeps into buildings in a lot of other places besides doors.
Was about to post the same exact thing. There is no way to completely seal off a home from standing water.
Sands bags only slow down intrusion from waves of water from reaching the home such as when assholes fly down the flooded street and make giant wakes.
Posted on 10/15/26 at 9:57 am to BHM
quote:
There is no way to completely seal off a home from standing water.
Sounds like a challenge for my duct tape.
Posted on 10/15/26 at 10:16 am to TDsngumbo
quote:
What are we gonna do, duct tape the entire bottom few feet of brick and siding homes?
Exactly, there are weep holes in the brick ledges and counterflashing at the framed walls where siding is located.
Then you tape up the doors and climb in the window? or is when you're taping up your house and leaving for higher ground?
Posted on 10/15/26 at 10:35 am to Shexter
Sandbags by themselves are essentially a placebo. Visqueen and sandbags used in combination is a lot more practical and effective than duct taping your doors.
Posted on 10/15/26 at 10:35 am to rattlebucket
Found the pic. May 2019
Posted on 10/15/26 at 10:45 am to Chaz95
Best thing would be a tried and true levee system around your house.
Posted on 10/15/26 at 11:03 am to KamaCausey_LSU
quote:
Visqueen and sandbags used in combination is a lot more practical and effective than duct taping your doors
More practical? WTF. Explain please.
Filling bags, retrieved bags, visqueen, and then the immense labor needed to put that, and it still leaks horribly.
Or simply tape doors and low windows...and yes, seep holes in brick is easily done as well, in about 1/10th of the time
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