render board

[jimbo71]

Hi, im new to this forum and im after some advice .I've been asked to render the panel above the bay window, the carpenter has put fireproof cement board on, just wandering the ratio ,i was thinkig 4 : 1, and would it need a glue up first?

 

[Andy M]

A pre rend and mesh would be the way forward.

 

[jimbo71]

Thanks Andy, do you mean a scratch coat before the eml?

 

[Wezly]

Weber Lac and OCR. If your determined to be a dinosaur, rib lath the cement board.