drip edge and tpo pipe flashing. search our site. additional resources. finally today, i finished off the metal drip edge (the gable ends go on top of the paper, whereas the long ends go underneath) this picture also shows the . is that drip something to worry about? a gba reader from climate zone 6 is concerned about water that drips from the underside of his roof soffit when . metal canopy close up. suspended metal canopy with soffit.