Asphalt Shingle Roofing in Long Island, Maine

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.

Architectural (dimensional) asphalt shingles are the most common roof in Maine for good reason: they are affordable, they come in many colors and textures, and a good system handles snow, ice and wind well. Several projects on this site used CertainTeed Landmark shingles. What separates a long-lived shingle roof from a short-lived one is mostly underneath: ice and water protection at the eaves, correct nailing, and balanced ventilation.

• Tear-off to the deck and sheathing repair where needed.
• Ice and water shield at eaves, valleys and around penetrations; underlayment over the rest.
• Starter strip and drip edge at the edges, then shingles nailed in the manufacturer's nail zone.
• Step flashing at walls, new pipe boots, and chimney flashing as needed.
• Hip and ridge caps over a ridge vent, balanced with intake at the soffits.

• Granules washing into the gutters and bald patches on the shingles
• Shingles that curl, cup, or lift in wind
• Leaks around chimneys, vents or skylights
• Moss or dark streaking on shaded slopes

• Roof area and pitch
• Shingle line and color
• Layers to tear off and deck repairs
• Flashing and ventilation work
• Number of valleys, dormers and penetrations

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 architectural asphalt shingle roofing overview.

For a deeper walkthrough of materials, code details and photos, see our full Asphalt Shingle Roofing: Underlayment, Shingle Types, and What Voids a Warranty guide.

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