I make work together with viborg vvs new building viborg
I make work together with viborg vvs on same building in viborg. One day I see they put tree under concrete for make support for drain pipe. Tree closed in beton will get wet and make gnije after time. When this happen, the drain go down and can make katastrofa for floor and wall. Later it cost many money for remont. For me this is not professional robota, they should use material what not die in beton.




