Hi everyone – new member here. 

Have a 1931 house on my hands.  Has a rubble rock foundation on 3 sides of the house.  4th side is framed – circa 1931 style.  Floor joists for the second floor / cantilevered porch are 2″ x 11″ x 27′.  Those are the true dimensions.  Most of the joists are fine, but 3 – 5 have rot setting in.  One, in particular, is the second-floor rim joist which also supports the porch.  

See attached pics to see the rot.  Sprayed in orange.

I have not peeled back the exterior siding to expose the full length of the rot – but I have picked along it and other than the exposed portions outside – the rest so far appear to be solid.  The 3 joists to the right of the rim joist also have some end rot as well but are all solid over the supporting wall and inside.  

I am here for advice.  My gut says at a minimum I need to sister on the 3 interior floor joists.  

So that leaves the rim joist – that is supporting the 4 x 4 coming down from the roof.  I believe I can safely create a support structure under that and the roof in general – thus taking the weight of the roof at that corner.

So now I need to figure out how to lift the side of the house? and slide a new sister/rim joist in there?  I guess the short question is – how do you replace a 2nd-floor rim joist?

Anyways – I’ve attached some pics

So that’s my story.  I am on a pretty cool adventure with this house and just trying to keep the ball moving in the right direction.

Any help/advice is more than welcome.

Thanks

Michael