Find a HOPE LUMBER supply company seller. Contact Don Cantrell They have a much stronger product called Lamb beam that will solve this problem
You would either have to remove the ceiling in the kitchen or the floor in the bath, and add additional joists to strengthen them, or possibly add steel in combination with the joists.
Put them in the opposite direction of the ceiling joists
It is usually 16 inch.
Depends on the area above the ceiling joists. Is it a live load (living space) or dead load (just the joists with maybe an attic above)? Also, the length of the ceiling joists from the last bearing point is a factor. How much weight is bearing on the beam is the critical issue.
Yes, if the upper floor joists are deep enough to install the pot light enclosures. Measure the depth of the joists and then take that measurement to the store supplying the fixtures to see what will fit into that joist depth.
A false ceiling is a ceiling which is lower than the real ceiling attached to the joists. False ceilings are often used in kitchens and on the first floors of houses with different tenants living on the second floor.
Joists are supported by the walls underneath them. The tops of your walls all need to be on the same plane, level. That will make your ceiling lines straight after drywall.
These are used to secure the ends of ceiling joist etc. used to form hatches /stairwells.
The tiles sit on a grid either 2x2 or 2x4 foot sections. The grid is held up on wires fastened to the ceiling joists.
You really can't.If the house was made after the 1960, there are strips of board 3/4" thick nailed to the trusses or joists and the drywall is fastened to them.The stud finder will pick these up, but they're not structural and are only designed to support the wallboard of the ceiling itself.If the house is pre '60s, the ceiling is probably plaster over 1/4" wooden lath and may have a layer of wallboard over that.You're going to have to cut a hole to locate the joists if you need a strong connection.
For ceiling joists, the minimum dimension per the IBC is a 2 x 12 inch, with spacing dependent on the load. Ideally, these would be screwed to blocking between the joists.
Ceiling joists are typically spaced 16 inches or 24 inches apart, although spacing can vary. Verify with local building codes for specific requirements.