Can someone please help me to understand how you tell the difference between stainless steel mesh and galvanised mesh as replacement for wood laths? Thanks v much!
The S/steel mesh panels ( usually 2.4 m x 6oomm) are more shiny , tougher to bend and quite springy, most important of all it is 6 to 8 times the cost of galvanised mesh.
If you wish to replace lathes with it you may need to introduce battens between the joists to stop it from sagging or use a ribbed variety. Internally galvanised would probably do the job although stainless is better. I personally do not like more than around a 100mm unsupported span with the mesh.
You could talk to Gervase about his experience with reed matting as I believe he had good sucess with that, could be another option.
Also as Middi says cost is different, please beware if you get your hands on any stainless mesh it is like a flexible sheet of razor blades and can even cut you through gloves so great care needs to be taken.
Apart from cost and other obvious differencies the really important difference between galvanised and stainless is corrosion/damp resistance.
In damp situations, either now or the future, galvanised is likely to eventually fail.
With my electrician's hat on, don't forget that metal conducts electricity so very great care should be exercised near any electricity.
We have quite a few areas of stained plaster. At first we were concerned that it could be some form of wood rot from damp timbers but after removing bits of plaster it turned out to be galvanised wire mesh that had failed and was corroding. Still, rather that than rotting wood!
I'm not sure about the latest wiring regulations but I wouldn't be surprised if it's now a requirement to earth-bond any new installation of mesh. Probably worth checking with a qualified electrician.