How much does roof raising cost?
Roof raising costs vary depending on the specific building in question. With all of our work based around the building columns, the main factors are lift amount and number of columns. Square footage plays some role, but it isn't a key indicator. EZ RISER can provide a free and fast budget range with just the bay spacing or column layout, a starting height, and a finished height. We can provide a better preliminary proposal with a few other added pieces of information. Finally, we provide a fixed contract price upon receipt of a small due diligence fee that is credited to the final price if an agreement is reached.
How high can we raise it?
Since certain intervals have economic advantages, height is typically limited by economics, not capability. Recently we have raised projects from 16’ to 44’ clear, 11’ to 30’, 12’ to 15’, and 14’ to 36’. Anything is possible if it makes sense for the given structure.
Is there a maximum or minimum size roof?
NO! EZ Riser has raised roofs as large as 650,000 square feet and as small as 3,000 square feet. Larger roofs (over 200,000 square feet) are typically split up into smaller lifting sections. This allows us to complete one section of the building at a time, which in turn allows other trades access to complete their scopes of work.
What makes this safe?
EZ Riser has more experience than anyone in the world in raising roofs, and has never once had a failure. If we have attempted to raise a roof, it has been raised, and remains that way today. Here are some of the built in safety features
- Foundation anchorage – the majority if not all of our lifting columns are structurally tied to the existing foundations. We do not free-float on the slab, relying on wiring and cribbing for stabilization.
- Structural Steel - Our telescoping columns are engineered, steel columns that can hold the weight of the roof forever, lifted or not. Our hydraulics only facilitate lift, they don’t hold weight for longer than necessary.
- Double Pins – during lifting, a fail safe hardened pin system is used to support the roof weight as we adjust our equipment. Each pin is engineered and rated for far beyond the capacity needed.
- Isolated Lifting – Although a central manifold/control system sounds nice, the reality is that if it were to ever fail, there is a risk the entire lifting system failing with it. By isolating our hydraulics individually, we guarantee that in the event of a failure, it is it is just one point. This limits risk & any damage that could result from a failure.
How do you extend the columns?
We don’t! The beauty of our system is that we either replace the existing column with a tube inside of a tube, or we wrap the H shape column that is already there. Then we expand this truncated column by telescoping the inner member up, creating the new clear height. The two sections are then permanently fastened together at the final elevation to create the final structural column.
How much weight can we lift?
Each column we prepare with lifting equipment can handle up to 100,000 pounds, and so we have never experienced a situation where a column required multiple setups. The strength of our system means we don’t need to “cluster” our equipment at any point, which saves our customers money.
How long does it take?
Roof raising is a much faster alternative than a tear down and rebuild or adding an addition, as the permitting process is simpler, and the scope is less. The actual roof raising generally moves at one foot per hour on the raise days.
Does the roof stay intact?
Yes! The only roof modifications needed are at the perimeter edges, to release the roof and then reseal it at the new elevation. The remaining 98% of the existing surface, HVAC units, and anything else on the roof all remains, as it was, undisturbed.
Can a business stay operational during this process?
YES! Sometimes when businesses needs to expand, temporarily closing or moving operations isn’t possible, & can be avoided by using EZ RISER. Other systems utilizing cribbing and guide wires require much more space for their installation and typically require a completely empty building. The EZ RISER system allows for ongoing operations to continue to take place throughout the entire process. Business only need to temporarily close on the days the roof is actually traveling (1-2 days generally). We then offer a Pre-Fabricated FAST-PANEL Enclosure option which is capable of enclosing the structure in 2-5 days after the roof is up, keeping you operational.