Metal Roofing in South Portland, Maine

South Portland has about 12,800 housing units, and the American Community Survey estimates a median year built of 1968, two decades newer than Portland across the harbor. About 25 percent of homes predate 1940 and about 45 percent predate 1960. Roughly 16 percent went up between 1960 and 1979, and close to 19 percent date from 2000 or later, a larger share of newer construction than on the peninsula. Owners occupy about 58 percent of occupied homes, and single-family detached houses make up a little over half the stock, with apartments, condominiums and two-family houses filling out the rest. Seasonal homes are rare, only about 100 units. The older waterfront villages hold the city's early wood-frame houses, while the neighborhoods farther inland are largely post-war and later.

South Portland faces Portland Harbor and the Fore River on its north side and Casco Bay to the east, so houses in Ferry Village, Willard and the streets near Spring Point take salt air and onshore wind, while western neighborhoods near the Maine Mall are more sheltered. The city shares its weather with the Portland International Jetport, whose main runway lies inside South Portland, and the Portland area averages about 69 inches of snow a year, with some winters far lighter or heavier. Nor'easters drive rain and snow sideways against exposed walls, and repeated freeze and thaw loosens caulk, paint and shingles. Near the water, salt speeds corrosion of flashing and fasteners.

Building permits in South Portland come from Code Enforcement, part of the Department of Planning and Development, which issues permits and conducts inspections for building, electrical and plumbing work. Applications can go through the city's online portal or by email. The city enforces the Maine Uniform Building and Energy Code, based on the 2021 International Residential Code, and a permitted project must make a substantial start within 180 days. Since 2019, a building permit for exterior work on a designated historic property or any structure built in 1940 or earlier may be delayed up to 90 days. Shoreland zoning applies along the harbor and bay.

Metal roofs shed snow, shrug off wind, and outlast most other roofing. Standing seam panels run from eave to ridge with raised, concealed-fastener seams; metal shingle systems give a more traditional look. The site lists metal roofing systems among its roofing options. Because snow slides off metal in sheets, planning where it lands, over doors, walks, decks and lower roofs, is part of the design.

• Tear-off to the deck and repair, or preparation of the existing deck as the system requires.
• High-temperature underlayment and ice and water protection where needed.
• Panels or metal shingles installed with clips or fasteners that allow thermal movement.
• Trim, ridge, eave and valley flashings formed and installed.
• Snow guards placed where sliding snow would land on entries, decks or lower roofs.

• You want the last roof you put on the house
• Heavy snow loads and ice dams on a low-pitch or shaded roof
• A camp, barn or outbuilding where low upkeep matters most
• Repeated shingle blow-offs in wind

• Standing seam versus metal shingle, and gauge and finish
• Roof area, pitch and number of penetrations
• Tear-off and deck preparation
• Snow guard layout
• Trim, valley and flashing detail

Every job is priced from a free on-site visit. Typical ranges for the trade are on our roofing page, and the details of this service are on the metal roofing overview.

For a deeper walkthrough of materials, code details and photos, see our full Metal Roofing: Standing Seam, Snow Shedding, and Panel Lifespan in Maine guide.

Back to the South Portland exterior services overview, or see every town on our service areas page.