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For an extractor fan on the ground floor, I need to drill 120mm core hole. The inner wall is thermalite and the hole is not directly under a floor joist, but close. The top of the hole will be 150mm below the joist level. Therefore about 1 block below the joist (and just to one side). I was...

Hello, New room, professionally skimmed. Plasterer said seal room by watered down emulsion. Did this when room was completely dry. Seems to be ok. Have given room another coat of unwatered down white emulsion that was left over. Now, it is a kids room and i want to be able to 'wipe the...

Hi, Excuse the question but: I want to buy some of the window board that is chip board coated in plastic. I want this to match existing ones in the house. I am having real trouble finding a supplier. I am near Northampton (even though it might say Southampton on here!!!). I have found one...

Sounds like your builders put the pipe in without any gas knowledge. You are right that the pipe needs to be protected from corrosion. If you cant see any protection around the exit from the concrete then it could corrode at that point even if they say it is protected underneath. Even a water...

Hi swbjackson, i must say i was a little skeptical about the link, but it really did tell me everything i needed to know! What is the best way to cut a notch in the joist? Cheers.

Hello there. Firstly a big thanks for all my previous questions. I have an extension which I need to fit with radiators. The CH pipes will need to cross nearly every single joist in the new build. I was wondering what the best practice was for pipes through joists. Should I drill with a hole...

Thanks

Hi, could someone knowledgable please tell me what screws i should use to fix my plasterboard ceiling to my joists / studs. I am unsure whether these should be plasterboard screws or wood screws. Im also curious to know about plasterboard screws in general, when they should be used. Also please...

Thanks all. I shall have a word and let you know.

I want to fill with screed. Have at least 50mm clearance above the pipe. sounds like i just need the tape? didnt understand "sufficient cover lime 40mm"

This is in my kitchen. Interesting that you use the words 'suitable material'. I can imagine this is where the argument will occur later with the fitter. For that matter why is some DPM polythene not suitable material. I am not disagreeing with you, but i already know the response im...

Thanks so much. Can i confirm what i should insist it is re-done with? does this need to be Denzo tape, to screed straight over it?

Thanks, I have to say that i already knew both of these answers. What i would like to know is, if it currently does not comply, and i need to insist that it is changed (or if it does comply, can i add some DPM for my own peace of mind). Agile, you are right, i cant add denzo myself as its...

Hello, I would like to know if it is ok for a Gas pipe in a screed channel to be 'gaffa taped' / duct taped to protect it from the concrete corrosion? Not work i have done my self but have this situation and am concerned its not up to regs. Could i beef up the protection with some DPM...

thanks RF. I understand about the inductive loads issue. Should the calculation for the volt drop be doubled due to the return conductor as well? (The spec labels it as single phase AC touching) Not sure what AC touching means?

Thanks for all your help. I would really like to understand the issue of voltage drop along the cable, but I am struggling. The specification says that voltage drop is given in mV/ A / M (which I think is millivolt - Amp - Meters). The cable I have has a v drop of 31 mV/A/M. Just for...

A ball park figure would do me but: It depends on the length of the run, -- 50M the ambient temperature of the run -- UK garden , wether it is grouped with other cables -- NO , wether it runs in thermally insulating material - lying on the ground / might bury one day , and what type of...

Hi there, got some "SWA BS5467 2 x 1.5mmsq" whats the max current rating assuming its mains voltage please?

Thanks for your input, really helpful. ROFLMAO.

Think it is unbranded from Screwfix at a price of about £60. Regarding the salamander, i already have a single so would rather use it if possible. What sort of problems do you think might occur if i do fit the reducer and pump?