Hello, I have taken out radiators in several of our ground floor rooms (will be replaced with an overlay underfloor heating system). There are several lengths of trenches in the screed where the radiator pipes used to run. They are lined with a metal track. What do I need to do to make good on those floors? Do I need to take up the tracks and then prime + screed mix fill the holes? Or, can I poor screed onto the tracks? Does that need some form of primer? Thank you
