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The sealed units in my 20-year old wooden window frames have clouded and need replacing. I did the worst (all those on my south facing wall) maybe 5 years ago using non k-glass units. Should I now use k-glass units on the others? Relevant factors may be 1. K-glass units cost almost 30%...

I am not an electrician, but a competent DIY enthusiast – all things on the house and cars! I am sorry for the length of this post, but I have found a lot of confusion on bonding. I have tried to explain some of my misgivings in the next three paragraphs (skip if you will), but can anyone...

I am about to replace my elderly 600mm “slot-in” electric cooker, but I have seen mention somewhere that any top cupboards should be 50mm back from each side. My top cupboards match the bottom units - with the same 600mm gap. Is the 50mm a new thing, and does this mean I can only put in a...

But is it notifiable if all I do is plug a 2m extension lead into the existing switched socket and feed it to the DW (maybe tacking it to the skirting board). I agree it is a bit shabby, but will I have done any "electrical work"? Another alternative I've had suggested is to use a cable...

Thank you Sparky...... My problem is that this DW spur already comes out of a switch fuse (on the ring) for the boiler, which is itself alongside the cooker switch (different radial). There is not much room for another switch fuse above the worktop - and it would also be confusing. So I hoped...

Can I extend an unfused spur to a switched socket using a surface clipped short extension cable? The situation is this. I have an unfused spur feeding a switched socket under the kitchen worktop - behind where the dishwasher was. I want to move the dishwasher along, and put a new kitchen...

Thanks all - that's very useful. I actually have 4 MCB slots on the RCD side of my consumer unit. Beside the two rings I have mentioned, 1 slot is wired to another ring for my attached garage with TV/playroom above, and the last slot is wired to an outdoor 'terminal' that I never continued...

Hi I am not fully conversant with building regs and electricity, but I know I need the work certified (or carried out by a self certifying electrician). However, I am a competant DIYer, and did the second fix of my house rewire (following major rebuild) 18 years ago. For the current...

Hi Can anyone tell me how to extend the ring main into my new kitchen/utility extension. The current ring main (installed by contractors 18 years ago) is at ceiling level, and drops down to sockets above ground floor skirting boards (and goes up to sockets at first floor level). The sockets...

Thanks for your help. The ridge beam detail is important to me. The roof is vaulted (no ceiling joists at wallplate level), and the beam is therefore chunky (225mm by 75mm) and must be ordered specially by the woodyard. If I carry it over the gable wall to support the flying rafter I will...

Can anyone tell me if this is how I SHOULD set up a flying rafter: - Noggins (or are they sprockets?) at 600mm centres nailed to the last normal rafter and passingi through gaps in the gable end wall - Flying rafter nailed to noggins - Barge board nailed to flying rafter If so: - Should...

Thanks for your help, I'll talk to the engineer when I get his calcs. The ridge beam specified by the architect technician is actually 225*75, but we are still awaiting the engineer's confirmation. The ridge beam spans 2.8m, and the rafters span 4.1m at a 22.5 degree pitch. I could...

Sorry for slow response - been away from PC fro two days! My architect technician is waiting for the engineer's response to his design, which has a wooden ridge beam (50*200 I think, but I've not got the drawings to hand right now), and no details of its end support. We were expecting...

I am about to build (/have built) a single storey extension, with a 22.5 degree pitched roof abutting the existing house such that the ridge comes (just) below the first floor windows. Building Regulation Approval has been granted. The roof will be open vaulted, spanning between the ridge beam...