dodgey dave Posted January 27, 2006 Share Posted January 27, 2006 We have a stone building, that has the front wall coming away from the side wall , and we want advice on how we can overcome this.The buliding is two stories high, and the front wall shows movement in the top 6 feet, where it has come away from an internal wall which is stone and runs the width of the house , by about 3 inches at the top. The top 3 feet of this wall changes from stone to mass if that makes a difference.The internal wall is some 10 feet from the end wall, which also has some signs of spliting away from the front wall. I have an idea that I can take down the top 1 feet of walls, and put in a ring beam of concreate going from the front wall, to the two walls that run the width of the building and to the back wall.I would then reinforce the beam with steel rod box sections to tie them together.Has anyone else had a similar problem, and if so does our idea sound Ok, or do you have other ideas?Thanks Link to comment Share on other sites More sharing options...
Nick Trollope Posted January 27, 2006 Share Posted January 27, 2006 You could, and it would tie it together, but concrete and stone are not good bedfellows. Too heavy and too rigid for a stone wall which will always move to some extent.Better, perhaps to rebuild it - not too onerous in most cases(!). Or (I have seen this done locally) tie the 2 halves of the building together with steel rods or bands.Or expanding foam/gripfill. Works for me! Link to comment Share on other sites More sharing options...
Nearly Retired (I am now) Posted January 27, 2006 Share Posted January 27, 2006 It could be what's known as "roof-spread". Does the house roof span onto the affected wall in such a direction that if you flattened the roof down, it would make the walls bow out ?. If so, then a few tie bars across could be your answer or perhaps tying the horizontal roof beams properly to the top of the walls might sort it out? Link to comment Share on other sites More sharing options...
Deimos Posted January 28, 2006 Share Posted January 28, 2006 When I renovated a house in the UK the structural engineersaid it had “roof spread” and his solution was to have me tie each of therafters together with wooden beams (actually fairly small strips of wood asevery rafter was tied to its “opposite number” – he specified the size, andgrade of wood, plates to attach tie wood to rafter, nail size, everything). I was fortunate in that the roof went downto floor level and this it was a great solution –cheap, easy to do, only raisedthe floor by a few cm, etc.)Although it was a very old stone house, at some pointsomebody had cut out a horizontal from the central pain purlins (the “–“ part ofthe “A”). I also replaced this but withvertical supports to a main beam below (to help take the loads).Chatting to the structural engineer (in the UK, about UKhouses) he was saying that a lot of houses suffer from this, even on occasionsnew build houses.Ian Link to comment Share on other sites More sharing options...
dodgey dave Posted January 29, 2006 Author Share Posted January 29, 2006 Could be that your right.the roof is now tin, but the A frame where the wall has moved has been packed with about 4 inches of wood, so that the purlin runs level. maybe the previous roof was much heavier, and caused the movement, many years ago, as the roof line now looks OkWould the tie rods you suggest be the type that is a threaded bar with a large cross on each outer wall? Or would it be something else.Also to prevent the a frame spreading further, could we add some support, and if so any ideas.thanks dave Link to comment Share on other sites More sharing options...
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