Wavy walls and roofs cut peak corner wind pressure by up to 60% on wind-tunnel house models
Engineers at Florida A&M and Florida State cut peak wind pressure at model buildings' corners by up to 60% in a wind tunnel by making walls and roofs wavy. That makes building shape a candidate wind measure for hurricane coasts, on evidence from 3D-printed scale models.
The Scientist · Science desk
Supported: wavy walls and roofs cut peak corner wind pressure by up to 60 percent on models; all wavy-roofed models took less load than the flat version; the deepest-wave model cut it 40 to 60 percent. Insufficient: a quoted claim of less worst-case storm damage.
- Supported Engineers at Florida A&M University and Florida State University, in a study published in Engineering Structures, found that wave-shaped walls and roofs on 3D-printed low-rise building models cut peak wind pressure near roof and wall corners by up to 60 percent in wind-tunnel tests., claim 1
- Supported All of the wave-roofed models experienced reduced wind load compared to the flat version., claim 5
- Supported The deepest wave model performed best, reducing peak wind pressure near roof and wall corners by between 40 and 60 percent compared to the flat version., claim 6
- Insufficient evidence "These nonconventional building shapes reduce the damage from worst-case severe weather scenarios.", claim 16
| Claim | State | Claim number |
|---|---|---|
| Engineers at Florida A&M University and Florida State University, in a study published in Engineering Structures, found that wave-shaped walls and roofs on 3D-printed low-rise building models cut peak wind pressure near roof and wall corners by up to 60 percent in wind-tunnel tests. | Supported | 1 |
| All of the wave-roofed models experienced reduced wind load compared to the flat version. | Supported | 5 |
| The deepest wave model performed best, reducing peak wind pressure near roof and wall corners by between 40 and 60 percent compared to the flat version. | Supported | 6 |
| "These nonconventional building shapes reduce the damage from worst-case severe weather scenarios." | Insufficient evidence | 16 |
What happened
- The team 3D-printed low-rise models with waves of 5, 7.5 and 10 percent of building height, plus a flat baseline, and measured surface pressure under wind from several directions.
- Every wavy-roofed model took less wind load than the flat-surfaced baseline, not only the deepest version.
- The 60 percent is the top of a range: against the flat version, the deepest-wave model cut peak pressure near roof and wall corners by 40 to 60 percent.
- On a flat roof, wind separates at the leading edge into one large vortex, and the resulting suction can peel a roof off in extreme cases.
Why it matters
- What it costs cost By the Congressional Budget Office's estimate, hurricane winds and flooding cost U.S. households about $34 billion a year; building shape can act only on the wind share of that bill.
- What it limits constraint The top figure needs the deepest waves tested, about 2 feet on a 20-foot house, so the whole envelope has to be designed and built around that geometry.
- What's now possible capability If the team's planned flow experiments and computer modeling hold up, wave pattern becomes a design parameter engineers can tune for wind load, alongside other shapes still to be tested.
Over a wavy surface, the paper's explanation goes, the wind skips along and breaks into a series of smaller swirls in place of one big vortex [9]. That disruption can keep high suction peaks from forming [9]. The relief lands at corners and edges, where damaging forces typically concentrate [7].
"Changing a building's shape can significantly reduce the intensity of wind forces it has to withstand," said Pedro Fernández-Cabán, a Florida State University civil engineer and co-author of the study [12][14]. In a statement he went further: "These nonconventional building shapes reduce the damage from worst-case severe weather scenarios" [16]. The team's own caveat is narrower. The researchers say the study focused specifically on wind pressure on the models' surfaces [10].
The thing this doesn't tell you is how much less of a real house a hurricane would tear off, or what a wavy house costs to build. Peak pressure on a 3D-printed model is a measured load [3]. Damage depends on how a full-size roof and its connections respond to that load.
The low-cost case comes from PopSci's framing. The magazine sets the wavy design against rounded corners, sloped walls and reinforced construction, and says those are often expensive or impractical for developers looking to cut costs [17]. It also calls designs like these surprisingly simple [18]. Simple geometry still has to be framed and roofed. Whether waves 2 feet deep across walls and roof cost less than reinforcing a flat box would take a builder's estimate to settle [15].
Until that estimate exists, I'd treat wavy walls as a promising answer to corner suction on scale models [6], and the cheapness as PopSci's expectation [18].
What to watch
- Any full-scale test of the 10 percent wave design, on a real low-rise building in a large wind facility or in the field.
- Published figures for the 5 and 7.5 percent waves, which would show how much corner protection a smaller change in shape buys.
Clarity's read
What the record supports and how the coverage leans. The claims behind it follow.
Reality
- Evidence40
- Adoption
- Not scored
- Hype gap+30
- Incentives
- Not scored
- Confidence40
Claim ledger
Ranked by verification strength, evidence, and original report placement.
- [1]
Engineers at Florida A&M University and Florida State University, in a study published in Engineering Structures, found that wave-shaped walls and roofs on 3D-printed low-rise building models cut peak wind pressure near roof and wall corners by up to 60 percent in wind-tunnel tests.
- [2]
The Congressional Budget Office estimates hurricane-force winds and storm-related flooding collectively cost U.S. households some $34 billion every year.
- [3]
The team 3D-printed low-rise building models, some with wavy walls and roofs and a conventional flat-surfaced baseline, in three wavy versions with amplitudes of 5, 7.5 and 10 percent of building height, and measured wind pressure on their surfaces in a university wind tunnel with wind from various directions.
- [4]
Amplitude measures the wave's size in proportion to the building's overall height; for a 20-foot-tall building, a 10 percent amplitude means waves that extend about 2 feet.
- [5]
All of the wave-roofed models experienced reduced wind load compared to the flat version.
- [6]
The deepest wave model performed best, reducing peak wind pressure near roof and wall corners by between 40 and 60 percent compared to the flat version.
- [7]
Roof and wall corners and edges are where damaging wind forces typically concentrate.
- [8]
When wind flows over a flat roof it separates at the leading edge and forms a single large swirling vortex, creating low pressure above while higher pressure underneath pushes out, a suction-like effect that in extreme scenarios can peel roofs off.
- [9]
Over a wavy surface, the wind skips along and forms a series of smaller swirls instead of one big one, a disruption that can prevent high-suction peaks from forming.
- [10]
The researchers caution that the study focused specifically on wind pressure on the models' surfaces.
- [11]
The researchers are running additional experiments on how wind flows around the wavy structures and plan to use computer modeling to fine-tune the wave patterns and test other shapes.
- [12]
"Changing a building's shape can significantly reduce the intensity of wind forces it has to withstand."
- [13]
"It's another tool for engineers and designers to protect against wind damage."
- [14]
Pedro Fernández-Cabán is a study co-author and a Florida State University civil engineer.
- [15]
On a 20-foot building, the three tested amplitudes correspond to waves about 1, 1.5 and 2 feet deep.
- [16]
"These nonconventional building shapes reduce the damage from worst-case severe weather scenarios."
- [17]
Rounded corners, sloped walls and reinforced construction can help mitigate some wind damage, but these additions are often expensive or impractical for developers looking to cut costs.
- [18]
PopSci describes designs like these as surprisingly simple.
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Sources
1 independent publisher whose own reporting we read for this story.
- popsci.comWavy-shaped homes could limit damage from hurricane winds
1 article · October 9, 2026
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