Jump to content

DONT STAY LURKING AS A GUEST,

JOIN TEF AND BENEFIT FROM MEMBERSHIP:

CLICK HERE TO JOIN.
  •  
     
     
Countdown To Christmas!
 

 
  • 0

driiling joists


stuff4jas

Question

stuff4jas

Currently in the process of rewiring my house and Ive had conflicting advice about drilling the ceiling joists in the loft for running cables.

Can this be done ?

Any advice will be welcome

Thanks to all replies

Jas

Link to comment
Share on other sites
 

14 answers to this question

Recommended Posts

 
Apache

Of course it can be done but should it be done?

See this other recent thread

Link to comment
Share on other sites
 
SPECIAL LOCATION

Drilling of ceiling joists, floor joist, permissible chasing depths for walls...

etc.. etc..

All come under the various aspects of Building regulations.

All work complying with BS7671 "Wiring Regulations",

should also comply with ALL relevant building regulations..

Ceiling joist should not be notched, drilled or cut, as they are smaller timbers than floor joists.

e.g. a typical size cable hole cut in a floor joist, is a much larger proportion of a ceiling joist physical cross section!

There are some useful 'A5' size guidance book..

such as "Electricians guide to Building regulations" which covers this sort of stuff... :)

Link to comment
Share on other sites
 
Drilling of ceiling joists, floor joist, permissible chasing depths for walls...

etc.. etc..

All come under the various aspects of Building regulations.

All work complying with BS7671 "Wiring Regulations",

should also comply with ALL relevant building regulations..

Ceiling joist should not be notched, drilled or cut, as they are smaller timbers than floor joists.

e.g. a typical size cable hole cut in a floor joist, is a much larger proportion of a ceiling joist physical cross section!

There are some useful 'A5' size guidance book..

such as "Electricians guide to Building regulations" which covers this sort of stuff... :)

Generally they are smaller although some new builds I have done have the same size as other joists in the house.

Batty

Link to comment
Share on other sites
 
 
never seen that before batty unless they are prearing for a loft after house is passed.

Thats the one.

Link to comment
Share on other sites
 
 

Dont want to appear patronising too much Jas, but if you have to ask advice on this issue do you really consider yourself competant to carry out a full rewire yourself ?...no offence but alarm bells are ringing.

Link to comment
Share on other sites
 
NozSpark

Or a hand built roof instead of trusses!

Although you don't get many of them

Link to comment
Share on other sites
 
jl-heating

i do agree A1 but on the other hand at least he is asking the question .. many dont its these that you need to worry about ..:(

Link to comment
Share on other sites
 
Dont want to appear patronising too much Jas, but if you have to ask advice on this issue do you really consider yourself competant to carry out a full rewire yourself ?...no offence but alarm bells are ringing.

and this was the reason behind part p

Link to comment
Share on other sites
 
jl-heating

part p failed from day 1.

the general public have no idea what part p is or what it involves its just another scam

Link to comment
Share on other sites
 
i do agree A1 but on the other hand at least he is asking the question .. many dont its these that you need to worry about ..:(

Fair Point Made Jl ..

Link to comment
Share on other sites
 
septiclecky

On house which have been built since the 70's that I know off use trusses in the roof which are approx 75mm on the bottom, drilling a 20mm hole in the middle would seriously weaken it.

Link to comment
Share on other sites
 

Archived

This topic is now archived and is closed to further replies.

×
  • Create New...

Important Information

Terms of UseWe have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.