Deep January in Brockton, and the sun barely clears the rooflines before it starts back down; that low light picks out every ridge of ice along the eaves. SUNGAZE Roofing turns to snow work in those months, opening driveways and walkways and taking heavy snow load off roofs before it settles into something harder to move. Working up high in winter means going slow and knowing exactly what lies under the white. Down at ground level the same care applies: drives opened wide, steps taken back to bare tread. Getting a house through a heavy winter is mostly a matter of never letting the snow pile up.