South Casper climbs just far enough up the base of Casper Mountain that its rooflines catch more snow than the flat streets below, close enough to see the ski runs at Hogadon cut into the mountain's north face on a clear day. Exterior Innovations works those rooflines and the siding and gutters beneath them the rest of the year, so an ice dam building along an eave or a gutter torn loose by snow load falls under the same expertise the company already applies to a home's outside in summer. The mountain's shadow keeps some of these streets colder longer than downtown sees, snow lingering on a north-facing roof pitch well after the flats have gone to slush. The crew clears roof snow and ice dams, then works down to driveways and walkways on the same visit, treating a house as one job from the ridge line to the front step. Exterior Innovations serves homes along Casper's mountain-facing south side, where a roof carries more of the winter than the ground beneath it does.