A groove provided on the underside of sill,cornice and coping so that the rain water can be discharged:
AWeathering
BCorbel
CThroatings
DSpringer
AWeathering
BCorbel
CThroatings
DSpringer
Related Questions:
Arrange the following metals in the decreasing order of reactivity?
K, Na, Zn, Cu, Hg, Ag