My front steps are SINKING!!!!!!!
That's going to take a bit of work. At the very least, a combination of J-mold to terminate the siding, lapped over L-metal to seal off the gap between the wall and the top of the porch landing. All of which should probably be integrated into the existing door flashing and pan flashing (if installed). Also, you have the horizontal to vertical transition on each side of the stoop where the siding appears to simply abut the concrete as well.
I'm surprised that the OSB looks pretty good, but I guarentee you it won't stay that way for long.
I honestly don't think this is a DIY project. All in all this is a rather complex condition to properly flash, and you would be better served contacting a tin bender to do the work for you. The best scenario is a field-fabricted conbination flashing. A unitized, properly bent and soldered flashing assembly is the answer here, I think.
Last edited by MacRoadie; 05-14-2008 at 03:58 PM.