Scrape back to bare concrete, apply an acrylic resin primer like JBP Contact-F Primer, then an undercoat, then a couple of coats of a good quality external paint like Dulux Weatherdhield?
I listened to your advice. In a few months I will be able to say if it worked.
Rising damp ?
in DIY Forum
Posted
I listened to your advice. In a few months I will be able to say if it worked.