When sistering joists, it is recommended to have at least 3 feet of overlap for proper support and stability.
That depends upon the size of the joists & grade/species of wood
It depends on what timber your joists are,how much water has been involved and for how long the water has been affecting the joists.Stop the egress of water and let the joists dry out.Take it from there.
The answer will depend on the size of each coping piece and how much of an overlap (if any) is required.
That depends on how well supported the floor is and that depends on how far apart the joists are placed. The closer they are, the more weight can be supported.
when science branches overlap that means that they are overfilled with to much information
Typically you would not put hardwood flooring directly over the joists. You should first put down a subfloor.
Ceiling joists can typically hold between 10-20 pounds per square foot, depending on the material and size of the joists. It is important to consult a structural engineer or building code regulations for specific weight limits in your area.
I use 30 % overlap on most surfaces.
500mm
15%
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.
None. Canada and the US are bordering countries. There is no overlap.