Help needed with removing concrete fascia tiles, insulating then rendering

[fergusont20]

Heres a picture of the front of our new house:

Our previous house around the corner had the same concrete tiles and behind them is breeze blocks, there was no insulation/ bricks or cavity, so i removed the tiles, added 100 mmcelotex insualtion boards then covered in white plastic.

Back to our new house again and we would like to remove the old concrete tiles, insulate onto the breeze blocks behind, change the windows then have a rendered a off white / cream colour.

I dont know anything about rendering so will get a professional in to do that, as soon as i can get someone to us but everyone around us all appear to be very very busy.

Can anyone on here explain to me please how i would correctly insulate this area before the rendering gets applied, i have heard of solid insulation boards for this job as opposed to celotex 100mm boards.

Im happy to complete insulating the job myself, if only i knew what materials to use.

Thanks Mark

 

[endecotp]

Celotex is a "solid insulation board", surely?

Have a look at: https://www.celotex.co.uk/applications/wall-insulation/external-solid-walls
I think you batten over the boards and then fix a metal mesh to which the render is applied.

 

[Tigercubrider]

Probably 20 years ago so possibly out of date

An office block near a mate was converted to flats and they added sprayed foam which incorporated wire mesh
Then it was rendered

I did a google and it seems there are boards intended for domestic use
The page indicated that pp might be needed

 

[endecotp]

Not sure about planning permission, but I think building regs do apply - and that probably means that you should use more than 100mm.

https://www.planningportal.co.uk/info/200130/common_projects/18/external_walls/2

You should probably ask in the "building regs & pp" section, as this section is really for describing your projects, not asking questions.