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    Is this earthing method dangerous?

    I find cinemas much more interesting than supermarkets as you tend to get a good mixture of power, network, fire and HVAC wiring, as well as plenty of pipes and ducts and ponder over while you wait in the queue. I recently went to France for a week's break and when examining my camera on my...
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    kitchen electrics and safe zones

    :lol: As it happens I do some work for a LA, but in this instance he really did drill through every cable drop and hit at least one of each pair. From memory there were four drops, and they were all perfectly central in their respective safe zones. When he phoned me he explained that when...
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    kitchen electrics and safe zones

    As Bernhard said the socket will create its own horizontal zone which you follow until it enters the vertical zone for the DP switch. It's not just that many people won't realise those are safe zones but also that many people don't realise there are any safe zones despite almost every cooker...
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    Thermolite blocks not 'sticking' together - normal?

    A DPC will by its very nature cause the wall above to be completely disconnected from that below except by weight. Plastic DPCs are normally keyed slightly to help friction to stop the upper wall being knocked off, but the inner course of a cavity wall is often built off the DPM from the floor...
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    Winter aeration/scarification??

    Really? The first result answers your question completely.
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    Concrete asbestos garage roof.

    It would be worth phoning some local skip companies as many will collect bagged asbestos for the price of the equivalent skip. They just turn up, load the bags straight into the skip and leave with it.
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    Concrete asbestos garage roof.

    With my excellent non-technical estimating abilities I would guess that a 3' by 10' sheet is about as heavy as a bag of cement (25kg) the last time I had any to dispose of. I snapped each sheet into three so they were managable and wrapped them in DPM by lapping each of the three sections and...
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    Leaky roof, please advise.

    If it only leaks in heavy rain then it sounds as if the water is overshooting the valley and coming under the tiles on the opposite roof at the joints, e.g. between the bottom and second courses. It is also possible that the volume is overflowing the valley and backing up under the bottom...
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    Sleepless night?

    I'd love to know too, but the main reason for this post is to add the link to Google Maps...
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    Would this type of roof be safe to stand on (pic)

    You could use two stand-off ladders with a couple of lengths of scafold board across them to create a platform. You may be able to lean a ladder over the lower roof, but you would need a strong helper to support the bottom of the ladder, and probably fix it to the ground mechanically* as well...
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    Ridge vent tile

    Could you keep your existing ridge tiles and retrofit a roll-out dry ridge system? It would look better than having a couple of mismatched plastic ridge vent tiles, although it will cost more in materials and labour. E.g.: Manthorpe roll-out dry ridge system brochure Fitting instructions...
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    Which DVR solution for CCTV?

    What is your budget? I have a QNAP VioStor VS4008 connected to my IP cameras (7 Axis M3114-R and a P3344-VE) and it works really well and has been running 24/7 for about a year without issue. It is connected to a small desktop UPS which also powers the POE switch that the cameras are...
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    Help! no DPC under french/patio doors

    Your pictures: As it is a plastic door then not placing a new DPC under the door frame won't make any real difference. If it was a wooden frame it would need one. The cracks appear to be where the door has been used before the mortar properly went off. If the bricks...
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    DPC - what is going on here?

    Is the part that is layed across both skins of the wall the bit shown in the bottom photo, or has it occured where the brick skins have been built up higher? It must not bridge the cavity unless it has been closed off. That bottom photo looks fine - it just shows it unfinished. It is normal...
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    DPC - what is going on here?

    That black plastic is a DPC, and looks to be installed correctly where it has been used. The blue plastic is the DPM under the floor slab and would normally be fitted to either overlap onto the inner course DPC or laid internally and trimmed back after the slab is laid. It is hard to tell as...
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    Stud Wall Help......means of escape

    The only building regulations that apply when making an insurance claim are those that were in effect at the time of the works. Many houses have open plan areas, such as three story staircases, which were perfectly acceptable at the time they were built but would not be allowed if built now...
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    Makita Lithium ion cordless drill battery – is there a probl

    No that is normal - the fan on the charger will always be on while charging (and for about 30 mins after charging if you leave the battery connected).
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    Bloody Noise Complaints

    If Adrian (OP) was making a noise that was irritating someone then why the heck didn't that person knock on the door and ask him to make less noise? I can tolerate a lot of things, but have absolutely no time for idiots who run to authority at every turn. At school we called these people tell...
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    fence post

    Generally speaking the posts should be burried 1/3 deep. For a 2m fence you should use 3m posts. 2.4m posts are really for 1.8m fences. In reality it depends on the ground conditions. Sometimes you can get away with less than 1/3, and sometimes you need more, but I would not expect 40cm to...
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    Makita Lithium ion cordless drill battery – is there a probl

    I have around 10-15 of the 3Ah li-ion batteries on the go at any one time as I use the various tools in their system daily. Over the last 2 years I have had to replace 6 after they stopped charging which is approx. 50% failure at £70 a pop. In at least a few of cases the batteries were...
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