The downward thrust when loaded with snow etc will cause the flimsy 2x4 roof joists to deflect bend and push the wall out of alignment.
How to replace roof joists.
There is a lot to be done but one of the first things wa.
Get to the roof and find out the extent of the damages on the joists.
Make sure you also buy the same type of joist.
Find a replacement joist that is the same size as your floor joist.
Identify and mark the joists needing repairs.
Repairing roof joists yourself.
Rotten roof joists are a severe problem and commonly lead to underlying issues and damage to opposing structures.
Keep in mind that the joist extends through the wall.
To repair a roof joist you will need to either replace the entire joist or use a spliced in piece of wood.
To replace the joist you need to measure the entire length.
While it is not entirely impossible to take on a diy roof joist repair replacing or repairing a damaged roof joist is a complicated procedure that requires precision.
If there are minor cracks these can be repaired by reinforcing the joist by nailing wooden planks to it.
Find a new floor joist with these exact same dimensions.
Over time roof rafters can wear crack or rot and replacements may be in order.
How to replace ceiling joists.
We recently purchased a house.
Yeah i know the roof ties and strong back are installed to hold the roof rafters from pushing the top of the wall out of plumb.
The roof joist is made of wood.
The process of replacing existing rafters so that your roof remains intact without removing the roof to do it requires some basic carpentry skills and a few common tools.
However replacing the entire joist gives the home much better structural integrity.
If your floor joist is an i joist for example buy an i joist.