Building in Coupeville 4 - Ask everybody then verify ! . Sunrise over Penn Cove The next stage was to make sure that the basement would be dry . I decided on a belt and braces approach . First measure was to coat the walls with " asphalt emulsion " I chose asphalt as it can be applied to whet concrete . I initially broke off all the external protruding spring clips The I hammered off all the washers - as these are potential points of failure removed all loose concrete paying special attention to the footing brushed away all dust and debris especially again from the "dry joint" between the footing and the wall applied an initial coat by roller and brush where necessary into holes and crevices where the walls would e below ground level Second coated the wall being careful to ensure no gaps again being especially generous to the top of the footing and also where the spring clip shafts went through the walls Second task was to install insulation externally - I economi