LarryS Posted October 23, 2018 Report Share Posted October 23, 2018 (edited) I have to replace the box sill on the house. This is not a load bearing wall. I have 20' to replace. I'm thinking about replacing 8' at a time with putting a nailer board behind each 2x10 for strength. I don't want to take out the whole 20' at once. Not sure if the wall will sag alittle while the 8' is being torn out? Then I would have to toe nail into the box to the bottom of the plywood and wall plate to nail it down again? I've replaced box sills on load bearing walls before where I had to jack up the floor joist. Can anyone tell me if this is the way you would do this? Or any other advise? Edited October 23, 2018 by LarryS Quote Link to comment Share on other sites More sharing options...
Dadio Posted October 23, 2018 Report Share Posted October 23, 2018 Is this a basement, or crawl space? Is that CMU block I see going below grade? Maybe remove the bad sill, fill back in with a stiff sand and cement and bag mix concrete. Then nail heavy strapping onto studs over sheathing every 2nd or 3rd stud and down over concrete to tie down wall. The sill is a little close to grade, maybe while you are at it remove a few inches of dirt, if that is possible. Herb Cal 1 Quote Link to comment Share on other sites More sharing options...
LarryS Posted October 23, 2018 Author Report Share Posted October 23, 2018 18 minutes ago, Dadio said: Is this a basement, or crawl space? Is that CMU block I see going below grade? Maybe remove the bad sill, fill back in with a stiff sand and cement and bag mix concrete. Then nail heavy strapping onto studs over sheathing every 2nd or 3rd stud and down over concrete to tie down wall. The sill is a little close to grade, maybe while you are at it remove a few inches of dirt, if that is possible. Herb It is a crawl space and it is CMU block. I like the idea of heavy strapping in the studs that way. I know it's close to grade the whole side of the yard is like that.The house should have been 1 block higher. If I take some of the dirt out to lower that by the house I think it would just make a trench and hold more water? Just need to find a good solution to that problem. May have to do some better grading next spring to take care of that problem. Quote Link to comment Share on other sites More sharing options...
Stick486 Posted October 23, 2018 Report Share Posted October 23, 2018 (edited) raise the house a half inch... the whole 20'... more if you absolutely have to... replace the rotted sill w/ PT timber rated as follows... use a bituminous membrane barrier between the block and sill UC4A, Ground Contact, General Use UC4B, Ground Contact, Heavy Duty UC4C, Ground Contact, Extreme Duty big box PT is rated as follows... UC1, Interior Dry UC2, Interior Damp these don't fit the mission and are more suited for decks... UC3A, Exterior Above Ground, Coated with Rapid Water Runoff UC3B, Exterior Above Ground, Uncoated UC5 and up is marine use rated... This information is required to be posted on each board and is either marked with ink on the board or on a plastic tag that is stapled onto the end of each treated board. Edited October 23, 2018 by Stick486 LarryS, Grandpadave52, HARO50 and 1 other 3 1 Quote Link to comment Share on other sites More sharing options...
Stick486 Posted October 23, 2018 Report Share Posted October 23, 2018 39 minutes ago, LarryS said: Just need to find a good solution to that problem. May have to do some better grading next spring to take care of that problem. a few degrees of slope will be a major help... you need a minimum of 8'' of space between the dirt and siding... LarryS and Cal 2 Quote Link to comment Share on other sites More sharing options...
Dadio Posted October 23, 2018 Report Share Posted October 23, 2018 If you use cement, it will flow around the anchor bolts, otherwise you will either have to cut off the anchor bolts or notch the wood plate to slide in under the wall plate. Plus the added concrete is like adding a part of a block. Are the ends of the floor joist or the edge setting on those sills? LarryS and Cal 2 Quote Link to comment Share on other sites More sharing options...
Stick486 Posted October 23, 2018 Report Share Posted October 23, 2018 (edited) 7 minutes ago, Dadio said: Are the ends of the floor joist or the edge setting on those sills? WTB that's the rim joist we are looking at... remove the rim joist... remove the sill and cut the anchor bolts off.. install new sill.. red head the new sill.. repair the joist ends w/ sisters if there are any perpendicular to the rim joist... install new rim joist w/ strap ends under the sill... install/fasten straps to the house.. sure wish there was more information on this... Edited October 23, 2018 by Stick486 LarryS and Cal 2 Quote Link to comment Share on other sites More sharing options...
HandyDan Posted October 23, 2018 Report Share Posted October 23, 2018 Here is a way to take the weight off the wall. http://www.oldhouseweb.com/forums/viewtopic.php?f=2&t=28806 Cal and LarryS 2 Quote Link to comment Share on other sites More sharing options...
LarryS Posted October 23, 2018 Author Report Share Posted October 23, 2018 7 hours ago, Dadio said: If you use cement, it will flow around the anchor bolts, otherwise you will either have to cut off the anchor bolts or notch the wood plate to slide in under the wall plate. Plus the added concrete is like adding a part of a block. Are the ends of the floor joist or the edge setting on those sills? The ends of the all of the floor joists are not on this board. This is a non load bearing wall. The only weight on this sill is the wall. Which I know is alot of weight by it self. Quote Link to comment Share on other sites More sharing options...
Stick486 Posted October 23, 2018 Report Share Posted October 23, 2018 6 minutes ago, LarryS said: This is a non load bearing wall. it certainly is... it's holding up the roof... is this a one or two story house???.... 8 minutes ago, LarryS said: The ends of the all of the floor joists are not on this board. that's a big plus... Cal 1 Quote Link to comment Share on other sites More sharing options...
Larry Buskirk Posted October 23, 2018 Report Share Posted October 23, 2018 (edited) Can you post a better picture of what you're working with? Such as a side view that shows more of the wall above. Just seems strange that this is not a load bearing wall. From what I'm seeing it doesn't look like the wall is even sitting on the sill. Edited October 23, 2018 by Larry Buskirk Cal 1 Quote Link to comment Share on other sites More sharing options...
LarryS Posted October 23, 2018 Author Report Share Posted October 23, 2018 2 minutes ago, Stick486 said: it certainly is... it's holding up the roof... is this a one or two story house???.... that's a big plus... O I know it is holding that part of the roof. That is why I'm being cautious. It is a one story Cal 1 Quote Link to comment Share on other sites More sharing options...
LarryS Posted October 23, 2018 Author Report Share Posted October 23, 2018 1 minute ago, Larry Buskirk said: Can you post a better picture of what you're working with? Such as a side view that shows more of the wall above. Just seems strange that this is not a load bearing wall. The load that I'm talking about is the floor joist that are running the same direction and all of the ends of the floor joist to the Header Joist Maybe Load bearing is not the right word. It is holding up the wall and the roof on that end. I'm referring to the Outside Joist by this picture. Quote Link to comment Share on other sites More sharing options...
Stick486 Posted October 23, 2018 Report Share Posted October 23, 2018 you know we need to see under that OSB... what condition is the wall plate in???... has the mold got into the wall cavities and insulation???... the rim joist... is it single or double thick???... Quote Link to comment Share on other sites More sharing options...
Larry Buskirk Posted October 23, 2018 Report Share Posted October 23, 2018 Larry, Ok you're referring to the outside end joist. Is this the full length of the wall? What is the floor in the crawl space? From your photo it appears that the joist is sitting on the inside edge of the sill. Quote Link to comment Share on other sites More sharing options...
Stick486 Posted October 23, 2018 Report Share Posted October 23, 2018 18 minutes ago, Larry Buskirk said: Such as a side view that shows more of the wall above. as in a picture of the whole end/side of the house... Quote Link to comment Share on other sites More sharing options...
Stick486 Posted October 23, 2018 Report Share Posted October 23, 2018 (edited) 2 minutes ago, Larry Buskirk said: From your photo it appears that the joist is sitting on the inside edge of the sill. we're not going to know a lot till we see under that sheathing.. Edited October 23, 2018 by Stick486 Quote Link to comment Share on other sites More sharing options...
Stick486 Posted October 23, 2018 Report Share Posted October 23, 2018 @LarryS what kind of flooring do you have inside the house???... Quote Link to comment Share on other sites More sharing options...
LarryS Posted October 23, 2018 Author Report Share Posted October 23, 2018 48 minutes ago, Larry Buskirk said: Larry, Ok you're referring to the outside end joist. Is this the full length of the wall? What is the floor in the crawl space? From your photo it appears that the joist is sitting on the inside edge of the sill. It is a crawl space. The joist is not sitting on the inside of the sill. It is on the outside of the sill. The space to be removed is a 20' section of a 60' wall. It is a section of the house that was originally a 30' wall before the addition. Quote Link to comment Share on other sites More sharing options...
Stick486 Posted October 23, 2018 Report Share Posted October 23, 2018 WTB that is a wet moldy crawl space... Quote Link to comment Share on other sites More sharing options...
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