Dummies guide to wall insulation

[Sunflower]

Are there any good sources of how to do internal wall insulation ?

I've had a look around and think it's something we could tackle ourselves, but there seems to be a few different ways of doing it.

We keep getting black mould creeping up the walls, every year we wash it off and apply a coat of Humistop but it keeps coming back so I'm thinking it could be best to insulate the walls.

This is what keeps happening:

[Doug]

What are the walls made of? Is there a damp course?
Here we are always getting the same, even though I have treated then insulated with fibre backed plasterboard, its down to rising damp as the old stone walls are on clay, ( worse after winter or a lot of rain) even get it on interior walls.
First time in 33 years here, but our other properties back in the Lot were on rock.

[Sunflower]

The walls are stone, the wall in the picture is the worse one and North facing. Don't know about damp coarse, but the floor is concrete.

Did the fibre backed plasterboard make the room feel warmer ?

[Doug]

Thats the idea of it to insulate, its avaliable with various thicknesses of insulation and is stuck onto existing walls.

[Sunflower]

Mmmmmm not seen that, can you point me to some or let me know what it's called in France ?

[Doug]

Most builders merchants/diy places sell it, plasterboard 2.4 × 1.2 mtrs 10 or 12.5 mm thick with 40mm and 80mm insulation on the back.
Buy the sticky there as well either ready made in cans or in sacks to mix yourself.
When fixing cut about 10cm of insulation off the bottom to leave a gap, stick skirtingboard on top.

[Sunflower]

Thank you Doug, I have to go to the city next month so will have a look.

[elsie]

Various techniques with fibreglass/plasterboard and polystyrene-backed plasterboard
see this google image search for mur platre isole https://tinyurl.com/yzh7ocb9
and this manufacturer web site https://www.placo.fr/Solutions/Solution ... -solutions

[Doug]

Sorry didn't do links [mention]Sunflower[/mention] can't on this tablet.
Thanks for the links [mention]elsie[/mention]

[Sunflower]

Various techniques with fibreglass/plasterboard and polystyrene-backed plasterboard
see this google image search for mur platre isole https://tinyurl.com/yzh7ocb9
and this manufacturer web site https://www.placo.fr/Solutions/Solution ... -solutions

Thank you very much Elsie, that gives me some reading to do.

@Doug No problem, looks like Elsie has pointed me in the right direction.