Metal Roofing in Long Island, Maine

Standing seam metal is attractive on an island where roofs have to go years without attention. Concealed fasteners have nothing to back out in the wind, panels shed snow instead of holding it, and a well-installed metal roof can outlast two shingle roofs. Metal shingles offer a similar lifespan with a texture that suits older houses better, and both work well on sheds and outbuildings.

Salt air makes finish selection important. Coated steel with a marine-grade finish or aluminum panels resist corrosion near the water, and mixing incompatible metals in flashing or fasteners should be avoided. Metal roofs release snow suddenly, so snow guards belong above entries, walkways and decks. Long panels also make delivery a factor: roll-formed lengths for a full roof cannot travel on the passenger ferry, and the Casco Bay Lines car ferry limits vehicles to 5,500 pounds and 6 feet 6 inches in height, so metal typically goes over on the private barge from Portland. Planning panel lengths around that trip is part of the job, and so is ordering trim and flashing in the same finish so nothing has to follow on a second crossing.

Census estimates count about 423 housing units, and the median year built is 1938. About 66 percent of units predate 1940, and about 68 percent predate 1960. Almost nothing was built between 1960 and 1979, only around 3 percent, and about 15 percent went up in 2000 or later. Roughly 95 percent of units are single-family detached houses, and about 88 percent of year-round households own their home. Seasonal use dominates: about 307 units, nearly three-quarters of the stock, are held for seasonal or occasional use. The town's comprehensive plan counts about 50 homes converted from year-round to summer-only use over a recent 25-year stretch and describes many summer houses as unheated or poorly heated. Many trace back to the summer-cottage boom of the 1890s and 1900s.

Long Island lies about six miles out from Portland along Hussey Sound, a main passage into the inner bay. Wind reaches it from every direction, and the town's comprehensive plan notes that the first settlers built on the south side of the island to shelter from northerly winter winds. Portland International Jetport, the nearest long-term station, averages about 69 inches of snow a season under the 1991 to 2020 normals. A January 2022 winter storm badly damaged the wave break, floats and pilings at Mariner's Wharf, and the plan lists sea level rise, stronger storms and upkeep of the island's bluffs among the town's concerns.

The Code Enforcement Officer meets by appointment through the Town Clerk. The town's building permit application covers new structures, additions, alterations, replacements and repairs, and it must include a scaled site plan and proof that a construction debris container has been delivered to be barged off the island. Every job gets at least three inspections: foundation, framing and final. Height is capped at 35 feet, and several zones limit structures to 15 percent of the lot. In the shoreland zone, new structures sit at least 75 feet from the upland edge of a coastal wetland, and the permit form warns that shoreland work may also need a Maine DEP permit.

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.

Back to the Long Island exterior services overview, or see every town on our Cumberland County service areas page.