ab122 Posted June 2 Posted June 2 So the previous owners had quite a bit of work done to the top floor of a 1930s semi we now live in. All top floor ceiling rafters were removed and replaced with two steels, 1 spanning the back of the property from side to side and one spanning the front. They have then replaced all joists with new rafters/joists and created a new 1st floor ceiling/loft floor. They have also mapped out the stair opening for future stairs on a loft extension, and evidenced triple bolted beams for the said openings, these beams are bolted to a triple from steel to steel and then sat on the outside wall of the house.. All the rafters/joists cross from back of house across, sit on a load bearing wall going all the way down the property to the foundation and then follow across to the front steel. I've been told that the floor is "done" and it's ready for a dormer and gable without the need for any floor work; it's current status is basically a room, with veluxes but with a pull down ladder. Can someone help me understand what steel may be needed to continue with a dormer and hip to gable (yes I will get plans and an SE when needed) but currently just trying to understand the situation... The chimney breasts had also been removed with the use of gallow brackets, so I assume when doing a full conversion a steel will need to cross from end to end to support the chimney stacks in place of the gallow brackets, but are any others likely to be needed? A crappy sketch to try and give a picture of what I have. Red is steels, yellow are joists, singles and triplets (joined by the cross lines I've shown) and then blue is the space for hypothetical stairs
Mr Punter Posted June 4 Posted June 4 You could just get a SE to look. They won't charge you much and you need one anyway.
syne Posted Friday at 11:06 Posted Friday at 11:06 Did the prior owners give you any drawings? Obviously this was done with an intention to convert so it's likely got some kind of drawing somewhere.. I'm assuming the two white lines on the rhs are the current hip. Your likely going to have to: take the hip off and build your gable up, Have a beam, likely a steel from the gable apex to party wall, Continue the roof line to the gable, Build the dormer walls off the steel already in place, Get your stairs in Insulation, vcl, plaster, electrics ectect Not necessarily in that order. Firstly, Though get a tape pencil, A scale ruler measure it all, draw it as is then draw it as you want it - to scale. Send that to an SE and they'll likely send you a drawing with details of beam sizes and requirements
Nickfromwales Posted Friday at 12:03 Posted Friday at 12:03 Agreed. An SE shouldn’t be much more than a few hundred quid, so they’re your first port of call. Info given here is of little to no use to you as it’s not specific and not underwritten. 1
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