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  1. H

    Loft Steel Query

    ok went back to him, and he redesigned it with 3 beams, 2 parallels and a tie beam between them all at 203*203*60 kg, there is one more 151*152*30 but only spanning 3m, so can be lifted easily by hand. he just included two flitch beams running 2 * 8x2 with a 6mm 180mm flat plate, will check...
  2. H

    Loft Steel Query

    yes the se has provided a breakdown of the different loads, all done on superbeam, which is partially why i think it is a little over spec'd, another friend se mentioned i could get away with 254*146 beams, but the other problem i may has is that when the beam is sitting on the padstone, it may...
  3. H

    Loft Steel Query

    got calcs back from se, he has spec'd 2 203*203*71 beams spanning 7400mm carrying floor, purlins and roof for a loft conversion, thats a big beam at over 0.5t, there is a 152*152 spreader running in the middle between them to keep them from twisting im guessing. does anyone know is there is...
  4. H

    Drainage Backfill Question

    finished digging a trench for new drainage run yesterday, and rained all evening so the trench was soaked in the morning, pumped it all out, but the clay soil we have was very water logged (high water table area), foot would sink about 5cm if you stepped on it. put a little back in for levels...
  5. H

    Advice please - Piling for an extension.

    indus its interesting you brought that up, as i was thinking of doing that rather than piling, my room is 8.6 * 3.5, i was going to put 6 pad then rsj beams encase in concrete over them. can i ask how deep you dug the pads? and how much the design cost you? and whether it worked out the same...
  6. H

    Advice please - Piling for an extension.

    my 2 cents worth i had a hawthorn tree 5m away from where we were going to build an outbuilding, building control said 2.5m + or pile it.. as we are building upto the boundary fence dont really want to dig that deep and have anything collapse. looked at piling had a few quotes back, the...
  7. H

    Breaking out Existing Foundation

    just found a product on the net called dexpan, which is a no-explosive demolition mortar, you drill holes into the slab and then fill it with a mortar that expands and creates cracks in the concrete. its a product from the USA but found uk distributors for it, anyone tried anything like this...
  8. H

    Breaking out Existing Foundation

    spoke to a plant hire company, and they recommended a 3t digger with a 3t breaker on it, said it should not take too much time. ill try and get it out clean, but with the weather these days and mud everywhere not sure how easy it would be. its a solid concrete pour strip, no built up blockwork...
  9. H

    Breaking out Existing Foundation

    another thing is has anyone used or can advise on chemical concrete breaking? hamazz
  10. H

    Breaking out Existing Foundation

    need advice on breaking out an existing conservatory foundation, that is 500 wide * 450mm deep, need to replace it with a 600wide * 1200 deep. someone mentioned underpinning it, but will take alot of time and increase cost as would have to be done in sections etc. so want to look at breaking...
  11. H

    External Render in Confined Space

    i thought of that, but it is out of the question, as there is probably going to be an external insulation/render to match the rest of the house, i was thinking of applying it to a sheet of ply or so, and then just the need to tie it into the blockwork hamazz
  12. H

    External Render in Confined Space

    trying to think of the best way to external render a side wall to our extension. at the moment it will be built in 215mm block with no cavity, and the extension come upto the boundary line of our property. Our neighbour has a conservatory which is about 25-30 away from the boundary line, which...
  13. H

    Extension costs ex foundation and walls...

    well it was part of agreement before they got their planning permission, and they were happy with it, because they would get an extra 10cm width in their side extension. and its all built up already, and they have not asked for anything hamazz
  14. H

    Extension costs ex foundation and walls...

    looking for a rough m2 cost of building a double storey side extension to a property in london. neighbour already has 2 storey extension with wall built astride boundary line in solid 215mm blockwork. so we would not need to have foundations dug or walls built, we can use this existing wall...
  15. H

    Drainage Proposal advice Sought

    thanks for the comments, the adjacent wall is a neighbours property so no option of putting anything there, the idea of having a manhole at the front and rear, was to be able to rod the whole line in one go. the toilets will all be boxed out in the bathrooms, so could maybe add a rodding...
  16. H

    Drainage Proposal advice Sought

    tony thank you for your comment, im not sure i clearly understand the bit about taking the toilet and the basin straight towards the extension?? i ran the kitchen sink to the rear rather than the front, so would help with keeping the run clear, with the water running from the sink and w/c...
  17. H

    Drainage Proposal advice Sought

    also just wanted to double check, pipes need to be bedded in 100mm shingles, and covered by at least another 100mm ontop before throwing soil over it again? hamazz
  18. H

    Drainage Proposal advice Sought

    as part of our side extension we decided to put in a new manhole, existing all surface water and soil are combined and go into a manhole in the neighbours garage. we want to try and make away with any internal manholes within the property, so will need a 16m run from the front to the rear of...
  19. H

    Block and Beam Flooring to New Extension

    someone mentioned that the foundation depth required was 1.2m, i could pour 985mm concrete, then use like a celcon foundation block that is 215mm high and 300mm wide, i could then sit the concrete beam off this? would this be a good idea, would also save a bit on concrete costs i guess hamazz
  20. H

    Block and Beam Flooring to New Extension

    water hot/cold, central heating, waste possibly, another feed for seperate UFH zone, electrics etc. i know you can run in screed ducts, but not sure about them. hamazz
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