Ask Andy “Add 30mm Bonded Screed Over Liquid Dpm”
Ask Andy "Add 30mm Bonded Screed Over Liquid Dpm" I am Andy Parkin Managing Director of the Multi-Award Winning Speed Screed. Thank you very much for your question, Mary. Your question is: “I need a liquid radon DPM over an existing concrete slab of unknown thickness in a project in a three-level porch and WC [...]