coloured render

[extreme-4x4]

been washing the outside walls down today with bleach and water. but thought its desperate for paint. after tapping with hammer recon the render is too far gone. and needs replacing.

my thought is the colored render stuff , just addwater and spread. now i can screed floors easy enough so im hoping i can with a couple of batons get this stuff on the walls . over the summer.

so anyone know what its called or costs . any tips for application

thanks in advance