Hi everyone, having just had a garage conversion, the garage door opening has been infilled with blockwork. There is also a section of original brickwork followed by some painted Tyrolean. (plus some timber where the flat roof has been raised). Pictures attached. Yes everything is in there including the kitchen sink !. I want the whole lot silicone rendered. With so many substrates I,m thinking it needs to be battened and render boarded then a thin coat render. Is that my best and only option ?. I will be looking to do the battening and boarding myself to safe cost so any help and advice on that also gratefully received. Many thanks Graham125.