Should a rendered house stay unpainted

theres no problem with painting render and it makes no difference when you need it re-rendered unless the paint is flaking off

No, You should definately protect the render with a good quality masonary paint. Quality masonary paint provides a protective barrier from moisture and dirt and allows the render to breathe and should have minimum of two coats applied!

Hi there, Quite honestly ,all the rendering works i have carried out have all been painted . Apart from specialists colour renders like k -rend. It is actually up to you though, If painting is the way you wish to go . Depending on location i.e . by the coast . I would recommend using an oil based paint , due to salt in the air. If not any water based paint used for cover over external render is fine. Always here to help R .Carrigan

I would paint and use a good quality one,its all about protecting your property and surely it looks better. Also if someone said "leave it because its easier to re render" How will a person re render on a finished render as there will be no key for the new render to take to,unless its a very rough finish. Good Luck.