31 July 2015 St. Swithin’s rains may need waterproof tanking Written by Jackie Legend has it that if it rains on St. Swithin’s Day, then the wet weather will continue for 40 days! Our current mix of sunny humid spells and heavy, torrential rain storms with the potential for hail and lightning... Read More about St. Swithin’s rains may need waterproof tanking Property Care penetrating damp, rising damp, waterproof tanking, waterproofing Leave a Comment