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  1. K

    Failed/blown concrete lintels - replace or repair?

    I have noticed signs of the old cast iron gutter joints leaking (due to be replaced) above each ends of the lintel, this could be a reason for the 1st floor lintel but no idea what’s causing the ground floor lintel reinforcement corrosion. Also if it’s gutter in the case of 1st floor, how come...
  2. K

    Failed/blown concrete lintels - replace or repair?

    I’m thinking the same, but a vertical crack right before the bearing worries me a lot. I have attached some pics for more info. I did brush off some of the corroded bar and it seems like not completely corroded so a patch repair could do it. FYI that plasterboard adhesive is something very strong!
  3. K

    Failed/blown concrete lintels - replace or repair?

    Two inner concrete lintels(100x~250) supporting 1/2 of external 30s solid walls, one supports a 1.8m window opening in 1st floor (carrying 3 courses and roof) and the other a 2m window opening in ground floor (supporting 10 courses and then an exact size window opening in 1st floor), are blown...
  4. K

    RSJ Padstone - HELP

    Thanks guys. You can tell I had fun being bounced around by the BCO, builder and the steel fabricator.
  5. K

    RSJ Padstone - HELP

    Builder doesn’t agree, with 10mm plate, says it will increase brick joints massively and not practical, even the 6mm. So I’m going for RSJ for inner leaf and IG C lintel for outer leaf, gauge is 3.2mm and 225mm high. Both not bolted.
  6. K

    RSJ Padstone - HELP

    An update guys: I have taken one of the RSJs back to weld an underplate to it and the steels guy said stiffeners will stick out on my wall so I can’t use that. I contacted the BCO prior to confirm they are happy with the underplate, the BCO said okay, but either 6mm plate with stiffeners or...
  7. K

    RSJ Padstone - HELP

    As shown in the photo
  8. K

    RSJ Padstone - HELP

    Only if my cavity width was enough to fit one of those ... :unsure:
  9. K

    RSJ Padstone - HELP

    In my colleagues defence, I didn’t tell him about the stiffners and a told him of a wider opening then. I have contacted the steel fabricators and they quoted me ~£100 to weld a 6mm plate to under one of the RSJs. Catnic recommends a box lintel (BHD100) for inner leaf and an angle lintel...
  10. K

    RSJ Padstone - HELP

    Thank you guys for coming back to me. I agree with you too. I had a look at cantnic or similar lintel provider products, but the capacities given on their websites didn’t seem enough, unless I got for the i beam with a welded under plate lintels, that is massively expensive. I could have...
  11. K

    RSJ Padstone - HELP

    I’m creating an opening (Proposed 1700mm wide) in my rear external ex solid wall (it has been rebuilt using cavity with a width to match existing, 230mm, just in ground floor and half length of the wall). There is a small window and a 900mm door in that wall panel I want the opening in for the...
  12. K

    Thermal plasterboarding solid wall/internal insulation - advice please

    Just bare bricks. Although I did forgot to add that, the roof has some holes in it that hasn't been touched for years (I found this thanks to google streets view history) also a roofer told me the gutters need changing too as they are the old cast iron ones (all pending repairs). I have bought...
  13. K

    Thermal plasterboarding solid wall/internal insulation - advice please

    Hi, First time posting here, I have taken all the plaster off on the external solid 9" walls (1930s house) and now want to insulate and redo them using celotex 37.5mm thick 2.4mx1.2m plasterboards. I have heard many stories about damp and condensation issues caused by internal insulation. Do...
  14. K

    Hi Tony, I would like to install a 1.66m wide*2.39m high French door on my rear external 30's...

    Hi Tony, I would like to install a 1.66m wide*2.39m high French door on my rear external 30's 225mm solid wall. I'm wondering what is the limit on the French door opening height and the return from the corner? total UDL~ 45kn unfactored (conservative). I would appreciate your advice. Thanks
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