North Deering, Portland farmhouse with AZEK composite decking by Cardinal Exteriors

Composite & PVC Decks in Cumberland, Maine

Composite & PVC Decks for Cumberland homes from a family-owned Portland company. An owner measures on site and writes a fixed-price proposal.

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Composite & PVC Decks for Cumberland homes

Low-maintenance decking fits the way most Cumberland owners live: about 91 percent of homes are owner-occupied, so a surface that does not need annual staining is appealing. Capped composite and PVC boards do not splinter, resist fading and stains, and handle snow shoveling and freeze and thaw cycles better than bare wood.

Location affects the choice. On the Foreside, salt spray and bay wind favor capped boards with corrosion-resistant hidden fasteners and stainless screws. In the wooded neighborhoods of West Cumberland, shade and damp can grow mildew on any surface, so good airflow beneath the deck, correct board spacing and a slight pitch for drainage keep boards cleaner. PVC is lighter and fully moisture-resistant; composite has a more wood-like feel. Both move with temperature, so gaps and fastening must follow the manufacturer's instructions, and boards laid on a cold autumn day need wider end gaps than boards laid in summer heat, because they will grow when the weather warms. Railings in aluminum, composite or cable can keep views of the fields or the water open, and lighting built into posts and stairs makes the deck usable on short winter evenings.

Composite deck furnished as an outdoor living space backing onto woods

How a Deck Structure Is Built

  1. Footing — poured below Maine’s frost line so winter heaving cannot move it
  2. Post — carries the beam load down to the footing
  3. Beam — spans between posts and carries the outer ends of the joists
  4. Ledger — bolted to the house framing, with flashing that diverts water away from the wall
  5. Joists — span from the ledger to the beam, sized and spaced to the decking and the load
  6. Decking — the walking surface, fastened on top with spacing for drainage
Aerial view of a new multi-level wood deck with a pergola and hot tub surround

Cumberland housing at a glance

Census estimates for 2020 to 2024 put Cumberland at about 3,300 housing units, with a median year built of 1984. About 15 percent predate 1940, roughly 24 percent were built between 1960 and 1979, about 26 percent in the 1980s and 1990s, and about 29 percent in 2000 or later. Around 91 percent of occupied homes are owner-occupied, and about 82 percent of units are single-family detached houses; only about 60 are held for seasonal use. The town's 2025 draft comprehensive plan counts 27 houses built before 1800 and another 190 built during the 1800s, about 7 percent of the stock. Most recent building has come as conservation or cluster subdivisions, such as the 72 homes of Mineral Springs in West Cumberland, plus condominiums and apartments near Route 1.

Permits and design review in Cumberland

The Cumberland Code Enforcement Office handles building permits and inspections, which it schedules Monday through Thursday, and applications can be sent by email. Construction must meet the 2021 International Residential Code, the 2021 International Building Code and the 2021 International Energy Conservation Code under the Maine Uniform Building and Energy Code. The Shoreland Overlay District generally reaches 250 feet from rivers, streams, saltwater and associated wetlands, and 75 feet from certain streams; any building permit there needs a Shoreland Zoning Permit first or alongside it. The town has no historic preservation ordinance, though the draft comprehensive plan asks the council to consider one.

Weather and exposure in Cumberland

Cumberland has no official weather station; the long-term record for the area comes from Portland International Jetport, where 1991 to 2020 normals put average snowfall at about 69 inches a year and February lows around 17 degrees. The town rises from sea level on the Foreside to about 184 feet at Cumberland Center, so the inland villages see similar snow but little salt. Houses on the Foreside, between Route 1 and the bay, take wind and salt spray from northeast storms, and the draft comprehensive plan lists storm surge and rising seas as coastal concerns. Inland, freeze and thaw cycles and shade from woods do most of the damage to roofs and wood.

Cumberland at a Glance

What the housing stock and local code enforcement mean for a siding, window, roofing or deck job here.

8,754

Population (ACS estimate)

Median year built: 1984

Homes built before 194015%

Mostly vinyl or fiber-cement siding and insulated replacement windows from recent decades.

State Building & Energy Code (MUBEC)

Enforced — population over 4,000

EPA Lead-Safe Rule (pre-1978 homes)

Applies to at least 22% of homes here

Shoreland Zoning

Applies near the water

Permits

Town of Cumberland Code Enforcement Office

Codes & Permits for Composite Decks in Cumberland

In Cumberland, exterior-work permits come from the Town of Cumberland Code Enforcement Office (290 Tuttle Road, Cumberland, ME 04021, (207) 829-2207). With 8,754 residents, over 4,000, Cumberland is required to enforce the Maine Uniform Building and Energy Code (MUBEC).

  • Maine's adopted 2021 IRC (R507.2.2) requires plastic composite deck boards, stair treads, guards, and handrails to comply with ASTM D7032, and (R507.2.2.1) to be labeled with the allowable load and maximum allowable span determined under ASTM D7032 — meaning composite span limits come from the product's own ASTM D7032 listing/manufacturer data rather than the standard wood joist-span tables, and are often shorter, requiring closer joist spacing than an equivalent wood board. up.codes
  • Composite decking installation must follow both the code and the manufacturer's instructions (R507.2.2.5), so a given product's specific fastening pattern and joist spacing should be pulled from its ICC-ES evaluation report or manufacturer install guide, not assumed from a generic wood-deck spec. up.codes
  • Maine's Shoreland Zoning Act creates a regulated shoreland zone extending 250 feet (horizontal distance) from the normal high-water line of any great pond, river, or coastal wetland, and 75 feet from certain streams; the Act's stated purposes include protecting buildings and land from flooding/erosion and controlling water pollution, and it governs deck and other structure setbacks and the expansion of nonconforming structures within that zone (specific setback/expansion rules are set at the municipal-ordinance level under the state's model guidelines). maine.gov
  • By Maine law (25 M.R.S. §2373), 'the code must be enforced in a municipality that has more than 4,000 residents' (per the most recent federal census); municipalities at or below that population are not required to adopt/enforce MUBEC but may opt in locally, per the state's own program page: 'All municipalities with a population greater than 4,000 are required, by statute, to enforce the MUBEC. Municipalities with a population under 4,000 may choose to enforce the MUBEC.' mainelegislature.org

How Cardinal Exteriors Handles Composite Decks in Cumberland

  • Every ledger we attach for a composite and PVC decks job in Cumberland is flashed to Maine's adopted deck code, with corrosion-resistant metal or an approved nonmetallic alternative, not a bare lag bolt into siding.
  • We set every Cumberland deck's footings below frost depth and size them to the actual load, following Maine's adopted residential code rather than a rule of thumb.
  • Cumberland's shoreline, lake or river frontage falls under Maine's Mandatory Shoreland Zoning Act, so we check setback rules before work starts near the water.
  • Cumberland's population (8,754) puts it above the threshold where Maine law requires full MUBEC enforcement, so this job is inspected against that code as well as the local permit.
  • Anything that needs a permit for composite and PVC decks goes through the Town of Cumberland Code Enforcement Office.
Cumberland, ME
A wooded residential road, Conifer Ridge, in Cumberland.
Street View © Google

What composite and PVC decks involves

Composite and PVC decking do not need staining, do not splinter, and resist rot, which is why they have become the default for new decks in Maine. Composite boards blend wood fiber and plastic under a protective cap; PVC boards are all synthetic and lighter. The North Deering farmhouse on this site got a rebuilt deck with AZEK composite decking. The framing underneath is still wood, so it is built to last as long as the boards on top.

  • Layout, size and board color are chosen with the owner at the estimate visit.
  • Footings and framing are built to code, with joist spacing that suits the board manufacturer's span rules.
  • Joist tape or flashing protects the tops of joists and the ledger.
  • Boards go down with hidden fasteners or color-matched screws and the expansion gaps the product requires.
  • Matching railings, stair treads, fascia and landings finish the deck.

Signs it is time

  • You are done staining and sealing a wood deck every year or two
  • The deck is in shade or near water where wood stays damp
  • You want a deck that stays barefoot-friendly with no splinters

What affects the price of composite and PVC decks

  • Composite versus PVC, and the product line
  • Deck size, height and shape
  • Railing system and stairs
  • Hidden-fastener versus face-screw installation
  • Footing and framing conditions

Every job is priced from a free on-site visit. Typical ranges for the trade are on our deck building page, and the details of this service are on the composite and PVC decks overview.

For a deeper walkthrough of materials, code details and photos, see our full Composite & PVC Decks: What Changes From Pressure-Treated Lumber guide.

Get a free composite and PVC decks estimate in Cumberland

Tell us about the house and what you want changed. One of the owners will call to set up a visit, measure, and write a fixed-price proposal. No pressure, no obligation.

Need it today?Call Mike (207) 408-5388

or Bob at (207) 252-0759