Ever since you started building, you’ve erected buildings from the ground up. Whether it was your first set of Legos or your first high-rise tower, you basically started at the bottom and worked towards the top. It’s hard to imagine that bedrock of conventional construction being turned on its head. It’s hard to imagine reversing that order by installing the roof first, and then erecting the rest of the structure later. It seems crazy. Well, it’s not.
Montreal-based Upbrella Construction is taking exactly that top down approach to building. And their patented system doesn’t just represent a new way of thinking, it’s also safer and more efficient than traditional construction.
Under my Upbrella
Growing up in Montreal, Upbrella Construction founder Joey Larouche was one of those kids building Legos from the ground up. But after working as a mechanical engineer that developed lifts for heavy machinery on automobile assembly lines, he realized those principles could be applied to construction.
“I like to come up with ideas that are simple, can be used very widely in the world and are extremely different from what was being done before,” Larouche told us. “That’s the way I do business.”
So how does Upbrella actually work?
Here’s the high-level explanation: The foundation and first floor of the building are built conventionally. Then the roof is temporarily perched on the columns of that first floor, so it can be raised by a special lifting system as additional floors are constructed. The synchronized lifting system — which features customized hydraulic cylinders similar to elevators — is also used to hoist the individual floors into place.
Before a new floor is lifted, its steel structural beams and decking are assembled on top of the previously poured concrete floor. The new floor is then hoisted to its final height so columns can be installed underneath it. Once the floor is raised and resting on its permanent columns, the concrete is poured and cured. It takes less than an hour to lift the floor and roof so that the crew can continue working. The process is repeated until the building’s desired number of floors are completed.