Exterior wall insulation

Considering biting the bullet and going for this (house has solid brick walls).

Does anybody have any experiences, good or bad, of any particular systems or products?

Would like to be able to pebbledash the walls afterwards, if that's relevant.

BAS, it can be done and there are products manufactured by Celotex et al to cater for this specific type of application. BUT, the major detailing issue which I imagine deters most people from progressing with this method of insulation is how do you deal with the increased depth of window/door reveals and how is it going to affect any soffit/fascia details?

OK -

1) Exterior may be less effective than interior, but interior is a lot more disruptive - radiators, pipes (inc gas), sockets, switches, changes to current-carrying capacity of cables, major bathroom/toilet work (moving bath, basin, WC, re-tiling), moving gas boiler, smaller rooms, always having problems screwing things to walls afterwards.....

Yes, exterior also has its issues - doorways, windows, pipes, soffits, but fewer, and see 2)..

2) I'm not going to be DIYing, but I'm interested in any info on products and systems so that I can choose an installer who uses any products/systems which get recommendations, if any.

And I'd expect any installer to know what to do about doorways, windows, pipes, soffits etc, and to be able to show me what it looks like when done.

Unfortunately Bas you are delving into non-conformist territory, i.e. sp£cialist.

Granted, the work does not require a high iq but the render finishes are picked up by companies that specialise in stucco type renders.

The insulation is mechanically fixed to the masonry with long washered screws, usually via the rib lath. The rib lath is the mesh that holds the render.

It is not a job i have wished to explore, but those that do usually do nowt else.

This is something that is done fairly frequently where I live and I have watched it being done now and again as I was thinking of doing it myself.

I don't think there are any "systems" involved, apart from the bolts and fixings. The rest is battens, sheets of polystyrene or PIR and then a mesh covering the surface to allow a finish to be applied.

I think the mesh noseall is referring to is metal, but I have only seen it done with a fabric mesh cut off a roll as needed.

We use stainless e.m.l. riblath in t' UK

Hi,

I wrote an essay of a response but the damn website timed out and I lost it. Not pleased and I am not going to do it all again.

Anyway, we bought a house earlier this year with solid walls. It was in poor condition, render needed work, windows, doors, soffits/fascias etc needed replacing. Perfect opportunity for installing EWI.

We had trouble finding an installer, most are not interested in one-off private houses. Only two would consider us, we went for the friendly one (not a great way to choose, but they turned out to be great).

We used the Sto system, 10 cm polystyrene, glued/bolted to existing render then has a reinforcing coat before the final (in our case white coloured) top coat. We had 5 cm polystyrene from DPC to around 20 cm below ground. Chimneys (which stand proud at both ends of the house) were rendered to match, in reterospect we should have insulted then too (perhaps 2 cm?), as they are probably the biggest cold bridge we have left.

It is expensive but we have no regrets. If you want more info just ask, I could send you to sleep with all the details.

G.