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Backyard Trampolines

Why Jumping From a Roof Onto a Trampoline Ends So Badly

Why jumping from a roof onto a backyard trampoline causes serious injuries, what doctors say, and how to get big air more safely.

By Up Is Jump Team8 min read

You're up on the roof clearing fall leaves out of the gutter or hanging Halloween lights, and the trampoline is right there below you. Maybe you just watched a clip of someone jumping from a roof onto one and bouncing off laughing. It looks like a soft landing. It isn't. A jump from a roof is a fall from height, and a backyard trampoline was never built to catch one. Here's what happens to the body and the equipment, what doctors and safety agencies say, and how to get big air without the ER visit.

Short answer: the stunt turns a fun bounce into a fall from height

A normal bounce starts on the mat. You push down, the springs stretch, and you go up and come back to roughly the same spot. A roof jump skips that whole cycle. You come down from well above the height of any bounce, and your aim has to be perfect.

The mat can't be counted on to absorb that. It's a sheet of fabric on springs over a steel frame, and only the middle of it gives you the soft, even rebound you see in videos. If you land off-center, you're on the springs or the frame. If you land badly, the mat can throw you back up at an angle. If you miss, you hit the ground. Clips that go viral show the landings that worked. Nobody can see the attempts that didn't.

Doctors have noticed. Pediatric surgeons at Winnipeg Children's Hospital reviewed 80 children (40 boys and 40 girls) with orthopedic injuries from backyard trampolines, published in the Journal of Pediatric Surgery in April 2004. They wrote that some injuries came from "imaginative uses of the trampoline," and gave "jumping from the roof onto the trampoline" as an example. They added that these unusual injuries "might have been preventable had adult supervision been available."

No study tracks roof-to-trampoline jumps on their own, so there's no injury rate or safe height for this stunt. The general trampoline and fall data are clear enough.

What happens to the body

The higher you fall from, the faster you're going when you land, and the more force the mat, the frame or the ground has to stop. On a trampoline, that force mostly goes into arms, legs, the neck and the spine.

National ER data show what usually breaks. An Indiana University study of 2002–2011 data estimated just over 1 million ER visits for trampoline injuries, 288,876 of them for fractures. About 60% of fractures were in the arm or hand. Just over 4% involved the spine, head, ribs or sternum, which works out to an estimated 2,807 spinal fractures. Those serious spine, head and rib fractures happened to older patients, averaging about 16.6 years old, compared with about 9 for trampoline injuries overall. That's the age group most likely to try something big for the camera.

The American Academy of Pediatrics (AAP) links neck injuries to two things: falls off the trampoline and attempts at somersaults or flips. Kids' growing bones and still-developing spines leave little room for a bad landing.

Two real cases show how fast a trampoline goes from fun to the trauma bay once it's pushed past normal use:

  • Chesapeake, Virginia, October 2020. A 14-year-old doing flips on his home trampoline had taken off the frame padding and about a third of the springs to get more height. He landed with his neck across the bare frame, fractured two vertebrae and couldn't move his legs. He had surgery within hours, then inpatient rehab, and went home just before Thanksgiving.
  • Pittsburgh area, August 2020. A 13-year-old girl doing flips landed awkwardly on her head and neck. Her first scans looked normal. A second set two days later showed a spinal stroke, and she was paralyzed from mid-chest down. She spent six days in intensive care at UPMC Children's Hospital of Pittsburgh before starting a long stretch of rehab. Her mother later said, "I would never advocate anyone use the trampoline."

Neither child came from a roof. Both were simply pushing for more height or a harder trick, and a roof jump does exactly that.

The frame, springs and the miss

On a backyard trampoline, the edges are the danger zone. The U.S. Consumer Product Safety Commission (CPSC) lists the usual ways people get hurt: crashing into another jumper, landing badly, falling or jumping off the trampoline, and landing on the springs or frame. The Winnipeg surgeons found a similar split: most of their 80 patients were hurt on the mat, and about 30% were hurt after being thrown off it.

A roof jump makes both the edge hit and the miss more likely. From a bounce, you take off from the mat and land near where you started. From a roof, you're launching sideways off a building, so you're moving forward as you drop. Judging distance from above is hard, and a slight misjudgment puts your feet, back or head on the steel rail or the springs. A good bounce can also throw you sideways off the mat, and since the trampoline sits next to the house, you could hit the wall, a deck, a patio or a fence.

That's why the CPSC says to place a trampoline away from structures and other play areas. Parking it under the eaves and climbing up to it breaks that rule.

What the numbers and doctors say about trampolines in general

Take the roof out of the picture and trampolines still send a lot of kids to the ER. The CPSC reported that ER-treated trampoline injuries rose from about 37,500 in 1991 to almost 100,000 in 1999, and nearly two-thirds of the injured were ages 6 to 14. In the Indiana University data, visits peaked at about 110,000 in 2004 and fell to just over 80,000 by 2011. The researchers put the cost of trampoline injuries at just over $1 billion for the decade, more than $400 million of it for fractures. They also found that 95% of trampoline fractures happened at home.

At the serious end, falls stand out. A 2023 review in Cureus looked at 44 children with trampoline head and spine injuries treated at a neurosurgery unit in Birmingham, UK, between 2010 and 2020. Falls caused 28 of them.

The AAP's position is blunt. In a policy statement published in Pediatrics in September 2012, the academy "strongly discourages" home trampoline use. It says current safety measures haven't appeared to substantially reduce the risk, and that catastrophic injuries happen.

Put those together and the roof jump is the most extreme form of what the data already warn about: a fall, a likely edge hit, no supervision, and often a teenager trying something bigger than last time.

Safer ways to get the thrill

If your family has a trampoline, the CPSC and AAP rules are simple:

  • One jumper at a time. Collisions are a leading cause of injury.
  • No flips or somersaults at home. Both are tied to neck and spine injuries.
  • An adult present who actually enforces the rules.
  • Padding on the springs, hooks and frame. Never take it off to get more height.
  • A net enclosure around the mat.
  • No ladder left out for little kids to climb, and placement away from the house, trees, fences and other play areas.
  • A check of your homeowner's insurance, which the AAP recommends for families who keep a trampoline.

On a fall weekend, that means taking the ladder down once the gutters are cleaned and the decorations are up.

If a teen wants real height and tricks, they should go where those are taught. Trampoline parks and coached gymnastics or tumbling programs have instructors and padded, purpose-built setups for learning skills step by step. If the goal is a real fall from height, there are sports built for that, with harnesses, parachutes and trained instructors.

The UpIsJump team covers all of it: backyard trampoline setup and safety, choosing a trampoline park, and what a first tandem skydive or bungee jump actually involves.

Sources (10)

Photo by ambermb on Pixabay.