rooogers Posted February 10, 2021 Share Posted February 10, 2021 Hi, My basement extension consists of a reinforced concrete slab with reinforced hollow concrete block walls up to the foundation level then simple blocks on top. It all sites on well drained chalk and has no liability of flooding due to where it is. In this case I don't need a full tanking system installed. I've heard however conflicting views on there remaining two options. Reuther a DPM batoned to the walls and layed on the floor or a simple black Jack or other bitumen paint and then insulation backed board dot and dabbed straight into to the walls? Link to comment Share on other sites More sharing options...
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