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Rotten Sole Plate - How To Repair/Replace?

Discussion in 'Building' started by Spuggy, 27 Jan 2019.

  1. Spuggy

    Spuggy

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    Hi All,

    Currently gutting our first-floor bathroom to repair and upgrade. I was aware of the rotten floorboards and joists and the need to replace, but I have found the sole plate between the bathroom and one of the bedrooms is almost gone too.

    Any tips on what should be done here?

    Cheers.

    Copy.jpg
     
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  3. ktuludays

    ktuludays

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    Replace it.
     
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  4. oldbutnotdead

    oldbutnotdead

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    You need to check those joists out as well- try stabbing them with a flathead screwdriver, if it sinks in more than about 10mm then you need to have a good look at what they're supporting and how feasable it is to replace or reinforce
    EDIT Just reread and you're aware of the joists already, good

    First, have a look in the loft and make sure that wall isn't carrying any substantial load (some stud walls are loadbearing). If it is (there could be a purlin block or something on top of it) then it'll need propping.....

    You need to cut that plate out and replace it. How deep is the skirting board in the bedroom- if it's more than the thickness of that timber then you're in with a chance....

    Remove skirting board from bedroom wall
    Cut through the plasterboard (padsaw is neatest, angle grinder with a disc will do) from the bedroom side- aim is to cut above the sole plate and below the top of the skirting. Make sure you cut the plasterboard all the way across including where it covers the vertical studs and vertically at the corners
    Now cut through the studs about 5mm above the sole plate (use a hacksaw, there'll be nails or screws)
    Remove the sole plate- it looks as if it will fall to bits but you may have to cut it into bits to get it out. Ideally you want the old nails out of the joists- if you can't get them out then saw them off flush
    Sort the joists out
    Put a new sole plate in (looks like 4 x 2, whatever you get make sure it is tanalised), fix it to the joists (big screws and an impact driver will be best, big hammer and nails probably equals bye bye plaster on the ceiling below)
    Pack the gaps between studs and new plate with window shims
    Skew screw the studs to the sole plate (pilot drill the studs to set the angle you want). If you can't get a good fix then screw blocks of 4 x 2 to the sole plate next to the studs then screw through the studs into the blocks
    Stuff the gap with rockwool
    Put the skirting board back on in the bedroom (you can replace the bit of plasterboard if you want but it isn't compulsory, you'll need to pack it out with something so it sits vertically)
     
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  5. Spuggy

    Spuggy

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    Thanks oldbutnotdead, very helpful. That's my weekend sorted...!
     
  6. Why has it rotted like that , was something leaking ?
     
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  8. oldbutnotdead

    oldbutnotdead

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    Have fun, post some After pics :)
     
  9. Before you carry out the remedial work do you know why it all rotted in the first place ?
     
  10. Spuggy

    Spuggy

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    Yes, this area is where the bath was. Looks like it had been leaking and damp for years.
     
  11. Spuggy

    Spuggy

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    Here you go...

    Copy 2.jpg

    Took me a while to get it done due to not having a lot of spare time. No damage to the bedroom wall next door, as I ended up chiselling out the rotten plate from this side. To be honest, most of it fell apart! I propped the top plate with timber as I cut out the bases of the studs to accommodate the new sole plate (3 x 4x2 CLS for the height). Luckily nothing moved. Then I fixed 4x2 CLS to the old studs to bring out to same depth as the new plate. Bathroom is now about 15mm narrower!

    Cheers for advice.
     
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  12. DIYnot Local

    DIYnot Local

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