As nouns the difference between counterflashing and ext
is that counterflashing is formed metal or elastomeric sheeting secured on or into a wall, curb, pipe or other surface, to cover and protect the upper edge of a base flashing and its associated fasteners while ext is exterior describing the location of a shot in a film script, etc.
counterflashing
English
Noun
(-)
(construction) Formed metal or elastomeric sheeting secured on or into a wall, curb, pipe or other surface, to cover and protect the upper edge of a base flashing and its associated fasteners. ext
English
Noun
exterior
(telecommunications) extension