I'm pretty confident that I know how to do this, as I've done it on a smaller scale before, but I figured I'd share my plan here and see if anyone has any suggestions for improvement or tips and tricks. After I do it I'll be sure to post the process here lol.The issue is in a friend's house where a tree fell on their 40 year old deck (built at the same time as the house), destroying about half of it, and they asked me to help them replace the whole thing because it is rotting anyways. While inspecting the damage, I discovered that the deck was flashed improperly in such a way that the flashing has been funneling water into the wall for probably almost the whole 40 years, judging from the extent of the rot. The rot is so bad that I will be needing to completely rebuild a 22 foot long section of the wall below the deck. The wall is about 8 feet high and encloses an unfinished crawl space under the house. The siding and sheathing are rotted badly enough that I can poke holes through them with my fingers in most places along this 22 foot section. Most of the studs are at least partially rotted, and the sill plate is pretty much swiss cheese at this point, I'm amazed that the house hasn't noticeably sagged yet. Here is a picture of the worst part of the damage from the inside https://ift.tt/2VYaIeC As you can see it's a disaster.As for how I plan to fix it, first I will be building a stud wall about 2 feet inside the rotten wall across the whole span plus probably 4' extra on each side, I will cut the studs a bit long and hammer them into place, as well as using a jack to help take the load off while I build the stud wall. I will be using 4x4s on 12" centers for the stud wall, with some cross bracing because the span is 12' high. Once the load of the house is being supported by the stud wall, I will demolish the deck and remove the rotted ledger board, as well as the rim joist if it is rotted as well, although I can't tell if that will be necessary yet, I have a feeling it will be needing replacement as well. Then I will remove the rotted section of wall and rebuild the studs and sill plate and whatever other rotten boards i find, but I will only do 8' at a time to make sure that the house is adequately supported (not that the rotted wall is providing much support to begin with, but better safe than sorry). After all the studs and sill plate are replaced, I will add new sheathing and siding and all stuff related to that, and then take out my stud wall. Then I will rebuild the deck with proper flashing and we will all live happily after after.All this sound good? via /r/DIY https://ift.tt/2yd2whL
