How do I raise Joists???


Postby Deadstar » Sat Nov 03, 2007 7:54 pm

Hi all, I've bought a 1904 detached place which had slipped at the front and was underpinned - Had the structural engineer go over the place and its fine. I am however left with all the first floor rooms slopping towards the front of the property. As I intend to replace all the ceilings and replaster all the walls, can i use use bottle jacks and acro's to lift the joists then pack underneath them? And just to make it interesting, the front room ground floor rooms are suspended - does this effect anything in terms of lifting the joist?
Thanks

Any help advice tips etc much appreciated.
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Postby pablo2 » Tue Nov 06, 2007 10:25 pm

Not sure I understand this but

The joists will probably go into the walls , the skirting and the plaster in the rooms above would foul . I would remove the old fllorboards and pack them up and lay some 18mm or 20 mm flooring

Pablo
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Postby property man » Fri Nov 16, 2007 7:10 am

remove flooring and level joists with strips of wood nailed to the top start at the highest point in the room then relay floor with p5 boards nailed and glued
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Postby thedoctor » Fri Nov 16, 2007 8:01 am

See the DIY Doctor projects section, levelling floor joists.
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Postby heath f harris » Mon Dec 24, 2007 4:48 am

maybe the rooms you're talkin' about are built on a porch foundation, that would be the reason for the pitch, so any water on an open porch would drain away from the foundation./ ext. walls.if that's not the case , it might be an extention with a bad foundation. if it was done in a slab , look outside where the structure starts and look for cracks where they married the foundation, [ this is also the case with a block or poured foundation.] you should check the ceiling joists, if they arre level, [or much less than the floor] then it was probably built on a porch structure. [this is better than a poor foundation.!] if not , YOU WILL NEED START WITH A REAL FOUNDATION! it is very important. if you cheap out on it, it WILL cost you sooner than you think. but it's still not that bad if you have the $$ . [ i'm not trying to sell you, i do fine home improvements on F.I , NY, ONLY....] so , DO NOT do it , unless the foundation is sound. if it is , you could rip out the flooring [ down to the joists] and sister them up level, new subfloof, ten flooring. i hope i helped.
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Postby heath f harris » Mon Dec 24, 2007 4:57 am

maybe the rooms you're talkin' about are built on a porch foundation, that would be the reason for the pitch, so any water on an open porch would drain away from the foundation./ ext. walls.if that's not the case , it might be an extention with a bad foundation. if it was done in a slab , look outside where the structure starts and look for cracks where they married the foundation, [ this is also the case with a block or poured foundation.] you should check the ceiling joists, if they arre level, [or much less than the floor] then it was probably built on a porch structure. [this is better than a poor foundation.!] if not , YOU WILL NEED START WITH A REAL FOUNDATION! it is very important. if you cheap out on it, it WILL cost you sooner than you think. but it's still not that bad if you have the $$ . [ i'm not trying to sell you, i do fine home improvements on F.I , NY, ONLY....] so , DO NOT do it , unless the foundation is sound. if it is , you could rip out the flooring [ down to the joists] and sister them up level, new subfloof, ten flooring. i hope i helped.
heath f harris
Posts: 3
Joined: Mon Dec 24, 2007 3:47 am


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