Can jacking up a floor be used to create more living space or a whole new level between two existing floors? Is this possible when trying to add an extra floor to your house? Thanks.
Jacking up a floor will tear it away from the walls. All 4 walls. The floor is connected to the walls.
Yes,..If they can't add on to the side of a house(cheaper strategy)..a house with floor joists and sills can be jacked-up,..or the roof can be removed,..and another floor built on top.. They can also Jack-up 8- 10 ft. A 4 bedroom brick house and slab,..along with the 2 car garage .. They dig tunnels under the house, and install hydraulic jacks system on Cribbing.. They form cinder block columns filled with cement and re-bar,..and wherever needed steel beams to reinforce the slab..Gulf Coast,..Hurricane Flood Zone.. edit...You can also jack up a house leaving the slab, and dismantling the bricks(replaced with siding)...The bolts holding the floor plates are cut..When the house is at the Desired height, floor joist and sills are slide in..The jacks are strategically placed not to interfere.
Is this a hypothetical question? Did you mean to ask Why would someone put jacks under a floor? You do not jack up a floor in normal circumstances. If the house is tilting, perhaps due to the foundation settling, then people sometimes put jacks under the floor beams to restore it to level. Sometimes workmen will put jacks under a floor beam while they replace whatever is under it. And if they are moving a house then of course they have to jack up the entire house to put wheels under it. No, it is not normal to jack up a house to build more living space under it.
