Who would have thought ordinary duct tape could outperform traditional sandbags when it comes to keeping floodwater out of buildings?
That's one of the surprising findings from research conducted at the University of Hull in England and announced in October 2026.
Researchers at the university's Property Flood Resilience Laboratory tested several inexpensive methods of preventing water from entering buildings through exterior doors. Their findings challenge some longstanding assumptions about flood protection and offer interesting possibilities for homeowners and property managers.
The Results May Surprise You
Researchers tested temporary flood protection methods on six commonly used types of exterior doors, measuring water leakage at flood depths of up to approximately two feet.
Here's how some of the methods performed compared with an unprotected door:
Flexible synthetic rubber tape: Reduced water leakage by 99%.
Ordinary duct tape: Reduced leakage by 97% to 98%.
Traditional sandbags: Reduced leakage by approximately 70%.
Even the least effective tape tested reduced leakage by 80%, outperforming traditional sandbags.
Why such a dramatic difference?
Sandbags rely on water pressure to help form a barrier, but gaps can still allow water to seep through. Tape provides a more direct seal around vulnerable openings, reducing the amount of water that can enter.
Researchers also found that tape was lighter, easier to store, less expensive, and required considerably less physical effort than traditional sandbags.
What Does This Mean for Rhode Island Property Owners?
Rhode Island's coastal location, heavy rainstorms, and powerful nor'easters make flooding a recurring concern for homeowners, businesses, and property managers.
The University of Hull's findings suggest that relatively inexpensive materials may provide an additional line of defense against certain types of flooding.
But there's an important distinction.
The researchers studied temporary protection against relatively shallow flooding, not prolonged submersion or major storm surges. Their findings don't mean duct tape can floodproof an entire building.
Floodwater can still enter through foundations, walls, drains, and other vulnerable areas. Permanent flood protection measures may be necessary for properties with significant or recurring exposure.
Nevertheless, research that identifies affordable ways to reduce water intrusion is welcome news, particularly for property owners looking for additional ways to protect their buildings.
Read the University of Hull's original research announcement:
https://www.hull.ac.uk/news-and-events/news/forget-sandbags-tape-can-keep-out-99-of-flood-water
Another Alternative to Sandbags, Made in Rhode Island
Speaking of alternatives to sandbags, did you know that Rhode Island has its own innovative flood protection company?
Quick Dam, a brand developed by Rhode Island-based Absorbent Specialty Products, manufactures lightweight, sandless flood barriers designed to help divert or contain unwanted water.
Its water-activated products contain superabsorbent materials that expand when exposed to water, creating barriers that can be used around doorways, garages, and other vulnerable areas.
Unlike traditional sandbags, they don't require shoveling, filling, or transporting heavy bags of sand.
One important consideration for coastal Rhode Island property owners: Standard water-activated Quick Dam barriers are intended for freshwater, not saltwater. The company also offers separate flood protection products designed for saltwater conditions.
Quick Dam is based in Pawtucket, Rhode Island.
Learn more about Quick Dam's flood protection products:
When Flood Prevention Isn't Enough
No temporary flood protection method can guarantee that water will stay out of a building.
And when flooding does occur, the damage doesn't necessarily end when the water recedes. Moisture trapped in walls, flooring, insulation, and other building materials can contribute to additional damage and mold growth if it isn't properly addressed.
That's where professional water damage cleanup, structural drying, and property repair become important.
Single Source Disaster Recovery has served Rhode Island property owners since 1971. Our team is available 24/7 to help homeowners, property managers, and businesses recover from flooding, water intrusion, and other property emergencies.
From emergency water removal and drying to property repairs and reconstruction, we're here when you need us most.
Single Source Disaster Recovery. One Call Does It All.
Sources & Additional Resources
University of Hull, Forget Sandbags, Tape Can Keep Out 99% of Flood Water (October 15, 2026): https://www.hull.ac.uk/news-and-events/news/forget-sandbags-tape-can-keep-out-99-of-flood-water
University of Hull, Property Flood Resilience Laboratory: https://www.hull.ac.uk/collaborate/services-for-business/facilities-and-equipment-hire/pfrlab
Quick Dam Flood Protection Products: https://quickdams.com/