Hi all,I'm painting some exterior render and the customer has told me it is lime rendered on the top half,the bottom is brick which has been painted white,the Side of the house is defiently lime as it is soft and white and crumbly and you can see it has been coated in limewash,but the back is a lot harder and doesn't seem to have been coated in limewash previously so I don't think it is lime,is a way of telling one way or the other as I don't want to use the wrongproduct on it many thanks