Prior to the installation of laminate flooring in my ranch home, I noticed that my floor in my living room was very unlevel near the wall to my right as I enter the front door. It was not in a normal traffic path and covered by carpeting. Upon further inspection in the basement I found adjacent floor trusses as much a 3/4 inch lower than adjacent trusses. It appears that the basement wall is lower in this area of the foundation. No apparent shimming was done in this area of the wall to attempt to level.
I then took a closer look at the whole structure in the finished basement. The main support beam (three laminated 2X10’s) down the center of the house does not have any permanent columns. When it was framed a couple of intersecting walls, not load bearing by design, had 2X4’s supporting the beam to the slab.
I would like to make this right. In what order would you tackle this situation. Pour center beam footings and install Lolly columns? Then attempt to jack up the low floor trusses and shim under the sill plate? The house is approximately 35′ X 75′ long. What would be an appropriate footer construction for a couple of Lolly columns?
There is some indication of slab movement in the basement and the basement framing is solid slab to trusses – another problem.
Any advice is appreciated.
I posted this on House Chat first.
Replies
2 x 2 x 2 ft. deep footings.....spaced at approx. 8 ft.
Pour em first, then jack the support beam as close to level as you can get. Set your columns.
Once beam is set, jack joists flush and install hangers.
J. D. Reynolds
Home Improvements
The floor joists (trusses) span the center beam, from front foundation wall to rear foundation wall. Do I leave the center beam where it is and then shim the truss at the sill plate to level?
dsmoot,
Does that 3/4" dip in the floor translate to a dip in the roof line? Will it put a 3/4" hump in the roof if you level the floor?
SamT