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Thanks for clarifying the terminology woody - helpful as always.

Thanks all for the responses, all make sense! I guess next question is what purpose are they serving? I assume for providing something for the roof tiles to be supported by, but surely that would be achieved by the roof battens? And subsequent question(s) to the above: 1) do we leave as is...

Morning all, Just wondering if anyone can advise why there is this additional trimmer timber directly above two Velux we have? I can of course understand the doubled up timbers above and below, as well as the single timber directly above (for fixing plasterboard to) but just not sure on why...

Morning all, Following on from a separate post about sorting out the insulation in a dormer above a garage, I have now stripped the space back to bare structure. There is a steel in the ridge with roof joists suspended from it with timber infill with plywood making up the flat roof deck ...

Thank you. Any reason why XPS wouldn't achieve the same objective as PIR? Vapour barrier will be in the form of foil tape before this layer so hopefully no issues there. It's a dormer room over a garage so not a huge space. This would only be used on ceiling (with 120mm PIR between rafters...

Good morning all, I have asked this question in the narrative of a separate thread but I suspect it will be missed and I could really do with an answer. I am seeking a 10 or 12mm PIR insulation board to use to reduce cold bridging in a space where there is little room for a reduction in head...

Well I can now confirm that this is definitely a worthwhile exercise. There are gaps and cold bridges all over the place! This is now the current state of affairs (obviously a lot of clearing up still to do): Now left with a new quandary; protecting steel from being a cold bridge at the...

Thank you both for your further insights. Chips: This is good to know that you have had success in an old property - comparably old to the 80s or 'very old'? I think we have the benefit of cavity wall insulation, decent loft insulation and double glazing. Some parts of the property have been...

Thanks all for the input. Notch: Our architect advised (and this is my crude understanding of BC) that if an existing element being refurbished (in this case repaired) on an older property then it's a 'best efforts' approach to upgrading the insulation - i.e. fit in what we can without having...

Morning everyone, Just trying to make a final decision on how to do UFH. Background: Property is 1980s, screed over (I think) uninsulated slab, CWI, decent insulation in the loft, double glazing, new doors etc. Screed is being ripped out due to renovations, an extension and water damage, so...

Going to proceed like this, thanks as always Woody.

Thanks Conny, we'll do just that.

Really helpful, thank you. We've now been able to tweak the design so that we can have a compliant door, with landing at the top of the staircase.

Thanks Woody, as always. My thinking was that would be the only real route to solving it, was just trying to avoid if possible. So suggestion would be to strip all plasterboard off, remove any vapour check layer that is currently there (where I can find it, it’s a green plastic sheet - sounds...

Evening folks, We've got a double garage that has had one side converted into habitable space (adjoining the house) and the loft above converted into a room with rear dormer - works were done c.2010 (before we bought the house), all signed off by building control, all finished to a decent...

Thanks for the responses and I thought that would be the case - I should just make clear this was a 'can someone point me to the regs' rather than a 'how can I get round the regs' post! I can now see the requirement for the depth of the landing to be at least as long as the width of the...

Thanks. They'll probably be disconnected from the main sewer so I'm not sure if that would make any difference?

Good morning experts, Just trying to establish whether a door is allowed directly at the bottom of a staircase, with the door being to the staircase itself. All regulation guidance I can find appears to be based upon swing areas into the bottom of the stairs rather than outwards from the...

Morning everyone, We have three soil pipes that run under our house to a manhole at the front (upstairs stack, kitchen 'mini' stack, downstairs WC 'mini' stack) all of which following a CCTV survey are showing signs of cracking and so at some point would be relined. All the stacks are actually...

Hi all, Have searched for this and can't find the answer but probably not using the right terminology! I'm aware of the various regulations about making holes/notches in joists, the number that you're allowed to do, size, distance from top/bottom/end etc. What I'm not clear of, is what, if...