Hi all, just wondered if anyone had a clue what these stains are from?
There doesn't appear to be any wood around to produce tanine stains and they don't look like water stains as they don't have any tide marks. the second image is on the stairs running up the bannister. The property is brick built and the mortars look good - no cracks or wind wear.
I'm going back over tomorrow so will take a few more images, I'll also apply some stain block to see if that stops the stain coming through.
There doesn't appear to be any wood around to produce tanine stains and they don't look like water stains as they don't have any tide marks. the second image is on the stairs running up the bannister. The property is brick built and the mortars look good - no cracks or wind wear.
I'm going back over tomorrow so will take a few more images, I'll also apply some stain block to see if that stops the stain coming through.