I have bought a bungalow that has had some work done in the loft. I am just wanting to know a few bits of advice if that is ok regarding finishing it and building regs.
- no planning required as no dormer or roof alterations.
- how much will building regs cost roughly in NE Derbyshire for 1 room approx 19' x 10'
- on a budget so can you draw your own plans? is there a site to assist?
- 2 velux windows already installed (92x62cm) these open are they big enough for fire regs?
- rafters insulated with 2 inch kingspan and then plastered. is this enough insulation?
- floor insulated with rockwool. is this adequate?
- i plan to have a permanent staircase and will get habitat certificate and follow stair regs of 43 degree rise etc. are there any regs on the size of stair opening (i.e 70x120cm?)
- ceiling height is currently 2.3 metres in centre but will reduce with new floor. is the limit 2 metres?
ok this is where i need the work.
- current joists 3x2 inch spread every 400mm
- span is 7.1 metres but load bearing wall in centre runs full length to make half and half 3.2metres and 3.9 metres.
- there are other walls dotted about as every internal wall is load bearing in the bungalow.
- existing ground floor joists are only 6x2 original from when built in 1957.
as i dont want to loose much ceiling height i dont really want to go thicker than 7 inch. this will knock my ceiling height down to 2.2metres. also there are no gable ends so the joists will require an angle cut to go into the eves. the thicker the joist the sharper the cut?
if i space every 400mm (in the middle of existing joists, not sistering) can i use 7x2 or at a push 7x3 for spans of 3.2 and 3.9 metres?
also will 7 inch of rockwool then be ok for insulation?
as said just a bedroom going up there.
thanks in advance and i appreciate any advice. I am capable with DIY just never had to do one to regs.