Thatch loft - rewire

[sythai]

Hi All

Just curious to see if anyone has had the pleasure of carrying one of these out before? And if so how it went.

We've got couple coming up, both following an EICR where we've found chewed cables/ basic insulation-exposed terminals buried in the thatch


Both jobs have decent access/ head height, unlike some I've seen. Been saving these for the cooler weather.

Both jobs are for long standing Clients. I've agreed a labour rate + materials, this was the only way I would take it on.

I've gone with the option using armoured copex for containment.

Cheers Sy

 

[Nigel]

Not personally but I am sure insurance companies insist on proper mechanical protection to be installed so metallic containment and/or pyro.

 

[sythai]

We're using metallic, so no probs there

Galvanised Flexible Conduits - Termination Technology Limited - https://www.termtech.co.uk/product/galvanised-flexible-conduits/

 

[Nigel]

We're using metallic, so no probs there

Galvanised Flexible Conduits - Termination Technology Limited - https://www.termtech.co.uk/product/galvanised-flexible-conduits/

You pulling singles through that?

 

[SparkyChick]

Never done one, but I might be inclined to have a couple of fire extinguishers on hand in the loft, just in case.

 

[ChrisElectrical88]

If using the galv copex, id be tempted to put a few runs of metal trubking through the most populated parts, you will save on the labour costs enough to cover the trunking.

 

[sythai]

id be tempted to put a few runs of metal trubking through the most populated parts, you will save on the labour costs enough to cover the trunking.

We did look at that as an option (on this first one), but due to layout of loft won't work out.

We're having series of galv 6x4 boxes dotted around, loop feeds to these and then a copex out to each light and to each switch.

Would prefer to do fully in singles but we're having to use existing t+e that we can't pull out (e.g switches) so sticking with t+e. Also can't get copex (or coupler, bush etc) fully to each light due to 'lathe and plaster' so no good for singles.

Taking all lights down, refitting with mdf patress above. Copex to above light into term box fixed to patress then drill through back and down into light. Switches to term box, fixed to top of stud then drill through back.

 

[Deleted member 26818]

Just remember that the Kopex cannot be used as CPC and is not suitable as additional protection required for cables concealed in walls or through joists in ceilings and floors.

 

[Tes369]

I'm pretty sure you need smoke detectors in the loft. I was working on a job down south and they were re thatching the house opposite. Looked amazing until they covered it in bird wire even the head Thatcher agreed looks better without.

Cheers

 

[Squid]

Make sure all you insurances and liability/indemnity policies are up to date ;o)))

 

[Yozza19]

I’d be using 25mm galv with conlock

 

[driverman]

Whilst working for a DNO company, we had to remove the mains intake position to an OMB position. Customer's insurance company insisted on it. Also they insisted smoke alarms within the loft space.

 

[sythai]

We've also got a couple of smokes up in loft..... have done this prior to EICR

 

[sythai]

Worked out well.... one down, another booked for new year (not so daunting this time)

 

[static zap]

OMG ,
for a moment I thought it might need lagging !
( Metal clips ) NEAT

 

[mydigitalhome]

This is an opportunity to consider Arc protection and a sprinkler system. Nowadays possibly consider Flexshield in tube and derate accordingly.

 

[Marvo]

View attachment 46348 Worked out well.... one down, another booked for new year (not so daunting this time)

I've only every used galv steel conduit in thatched buildings. The copex looks good, I'll give it consideration in future.