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    Planning Permission Changes or Extra Planning Application

    Do you fall under all three? For planning permission there should be a proceedure for "non material amendments" which these may well fall under. If its a listed building, these alterations should defo be approved beforehand. There is no means of approving "non material amendments" If...
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    conservatory and planning permission

    From what I understand about your proposal I'd try and get it through as a certificate application under PD. Ignore the existing extension for your certificate application (you certainly could not do this prior to 2008 as the old rules had a cumulative volume limit but nowadays it is all set...
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    Insulated plasterboard on external wall

    Is it cavity wall? I which case interstitial condensation may well occur within the cavity. I have just dot n dab PL4000'd my brick cavity walled house. Boards run up to ceiling and an inch gap at the bottom, I've expanding foam'd before adding skirtings. My sockets are cut out which is a...
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    Insulating my loft??

    I'd just cut the boards with care and if needed shove the dust/trimmings down any gaps, you could foil tape here if you wished but I would not bother, just foil board to board.
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    Cause of damp on bedroom wall?

    You are right to look outside and check for defects first as this can be a cause of damp but: "I notice also that the front bedroom windows have a lot of condensation on, far more than the others in the house. There is a pool of water on the internal window board" To me this could be a...
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    Insulating my loft??

    I should think its reasonably good but I'd guess it is slightly less insulating, you could do the U-value calcs and work it out. It may be better to celotex with quilt over.
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    RSJ looks unsafe?

    OMG these guys should not be called builders, a bit concerned is an understatement, it looks like these guys have no idea as to how to go about this job. Follow advice as given above, get structural calculations undertaken by a qualified structural engineer and this will need a building control...
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    Building Regs-window cill height

    I've spec'd child restraint latches/catches on jobs with low sills, as TheVictorian suggested. The BCO should be able to advise further.
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    Best Fireproofing

    12.5mm Fireline, two layers with staggered joints
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    Minimum mortar strength needed to satisfy building inspector

    Would it be possible to retrospectively put in some engineering bricks/padstones?
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    Planning error

    Im going to assume your house is an attached house so PD only covers 3m extensions and you had to get Planning Permission for your proposal. There is the new Neighbour Consultation Scheme which is up to 6m and could well save your bacon in this instance, its not quite like PD as your neighbours...
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    Minimum mortar strength needed to satisfy building inspector

    Speak to the engineer who did the original calcs and let them know the end bearing "as built" so that he can accurately work things out. The padstone does two thing, it has the compressive strength but also a large enough footprint to pass the load below onto a larger area. Would the motar as...
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    Need advice on Insulation - Celotex, Kingspan or Polystyrene

    Do a floating floor if you can i.e. no sub floor frame, but this depends on the levelness of the original garage floor, so you could take it all out and then look at a levelling screed if necessary, then DPM, insulation and chipboard. Thermally this is a better detail as the insulation is...
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    Extension advice

    As Blagard says sort out the height and joist size so that the joist can remain in situ when you choose to extend up. Make sure they are floor joist sized and the right level for accessing off of the existing first floor. This will save messing around with the ground floor room ceilings when the...
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    Loft boarding for storage - Kingspan vs glass fibre

    As you are concerned with the height and already considering rigid board insulation I'd probably just remove the existing glass fibre insulation and insert 100mm rigid board insulation (assuming 100mm joists) and then board over. Hopefully the excess glass fibre can be used where you do not need...
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    Loft boarding for storage - Kingspan vs glass fibre

    I should think you want at least 100mm of rigid board insulation between the joists. I've used seconds and co and the stuff I got was as new excess stock. Why are you worried about headroom - is the loft for storage or as a room? Have you considered "loft legs"? Give me some more info...
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    Chimney altered for stove, used for open fire?

    Making an open fire draw is a fine art, I've just done mine (having removed a Parkray appliance) and there are so may variables specific to your chimney. Try and read as much as you can on the subject and then keep trying to vary things until you get improvements. I was in my chimney opening for...
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    Errrrr... Condensation.

    2, 5 & heat
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    Another Bloody Damp Question!

    From what I can see, yes the detailing of this area is cr@p and there are several positions for potential moisture ingress and this is making the wall damp... BUT: To me this appears to be a classic case of room humidity. First question, do you have an extractor in your kitchen? I'm going to...
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    Concrete chimney flue liners.

    Sounds feasible. Have a chat with a competent HETAS installer, they'd be able to work it all out for you.
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