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    loft joists

    http://www.safety.odpm.gov.uk/bregs/pdf/ada/ada.pdf appendix A will tell you. 'Normal' timber will be stamped c16 and is grade 3.
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    Exterior Ground level

    Would say it would be an alternative rather than better. We use them because they look nice against paviered pathways and patios.
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    Exterior Ground level

    I understand the logic here is that if the ground level is less than 6" below the DPC, rain water will bounce off of the ground and soak your walls from below. Yes really. To assist your rain from not doing its best tigger impression, use pea gravel filled drainage or soak away strips...
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    Sealing damp patches

    Wet patches on your wall most likely imply something is wrong, as there should be measures to ensure the walls get only a bit wet - from which they will dry out on their own. Check your guttering is not blocked or broken. Check your roof too. Check your rendering - if you have any - is still...
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    Boarding a loft

    I would invest in insulating it all out properly - there are many sites which will show you how, but do leave air flow between uour roof and the insulation - and make sure there is an openable window. Lofts are very cold in the winter, hot and stuffy when the sun shines, not nice to work in.
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    Attic Floor

    You can get the building regs on line for free from the office of the Deputy Prime Minister http://www.safety.odpm.gov.uk/bregs/brad02.htm is the structure regulations. Span tables are in Part 5 - appendix A. Assume timber from most yards and B & Q will be grade 3 (should be stamped C16)...
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    Help with wall lights and 1-way switches

    If you get a switched fused spur you get both fuse and switch all in one handy package. Less chasing boxes and less connections to get wrong too.
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    Flues, flues and flues. Combi boiler flue through chimney?

    Have had similar problems before so have an expert's opinion (not mine):- According to my favorite plumber he can put a flue liner up a chimney stack for a gas fire, but if the flue is sound - and it needs to be checked by a CORGI registered plumber - it may not need one. If the stack leaks...
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    single way switch....two way room..

    Best not to use insulation tape for your joints. it geneally is only rated at 50v so needs to be 5 layers thick to be safe ish at 240v, it comes unpeeled when it feels like it, and it can't ensure a good mechanical joint. getting a set of connector blocks might stop you from burning with more...
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    ELECTRIC HOB

    Could be a stateside two phase unit. color codes sound like those used to give 220v for larger items (eg cookers) from two phases of 120v. If you can't find a plate telling you who makes it, you'll have to get homebase to get you a manual. Without one the item is suitable for the intended...
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    Replacing an electric shower...

    I've had to replace a good many electrically operated valves in electric showers. Could it be that? These valves and heads are what Ireplace most often on showers. When the valve is closed no water flows, no water flows, the pressure switches will not turn the heaters on, and much of the...
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    Are there REGULATIONS on oven installation ?????

    Have rarely seen a cooker connection box anywhere oher than directly behind the cooker. Obvious place for accessing the connections when replacing the oven. In general ovens are hot on the inside, but not too bad on the outside - especially at the back where the installed insulation will be...
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    garage

    Good point about the phones etc. You should lay these in grey pipes. Although they still may get broken, they are unlikely to kill you. Whilst you've got a trench, you might consider a water feed and soil pipes too, so you can have a hand basin and loo etc in your workshop. You should check...
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    garage

    I would highly recommend armoured cable for external use. Pipes are easily broken by even old ladies digging, then there is no protection. Used to have to bury it over 600mm deep (300mm in a graveyard) and cover with yellow warning tape. Depends on the type. 6.0mm 6943X 3 or 6944X 4core for...
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    two wall lights off one feed

    Are you using 5A round pin sockets off the lighting circuits, or are you plugging into the ring mains? If the former, wire it all up like a junction box fed circuit and parallel the sockets.
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    Sound Proofing walls

    Egg Boxes no goo unless they are on the noisy side of the wall. Sure theneighbour would love that!
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    Sound Proofing walls

    False wall and filling the space with insulation will make a hell of a lot of difference to airbourne noises - vocals etc - but only if the timbers / fixings do not touch the joining wall. This will not work on building transmitted noise - running on floor boards etc. Of course if you do fit...
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    Electrical Earthing Explanation Needed

    This is lifted from http://www.diyfaq.org.uk/electrical.html because this was easier than trying to explain it myself..... A fault current flowing in the earth wiring will cause the voltage on that wiring to rise relative to true earth potential. This could cause a shock to someone...
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    Minimum joist size for Loft

    :roll: I've posted an answer to this question before. If you go to this post http://www.diynot.com/forums/viewtopic.php?p=1556&highlight=#1556 you can find the hyper link for the governments' building regulations which are available as PDFs. You will need Table A1. Most timber will be...
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    Light Switch

    When using plastic back boxes (for stud walls) for nylon lighting switches, there isn't anywhere to earth to, so I tend to leave the earth wire long enough to reach anywhere in the box (in case someone fits a metal fronted switch in the future), cover it with g/y sleeving and bend the wire into...
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