Attic Insulation in Cedar Point, NC

Blown-in attic insulation for Cedar Point, NC, 1 mile from Cape Carteret, plus removal and air sealing.

About Cedar Point and Its Homes

Cedar Point, where the White Oak River meets Bogue Sound, was Hill and Borden family land for generations before it was incorporated in 1987. Its landmark, the eight-sided Octagon House, was finished in 1859, though few homes here predate 1970.

Cedar Point, in Carteret County, grew from 1,777 people in 2020 to 1,825 in 2025 (Census Bureau estimates), on 2.23 square miles.

Cedar Point has about 1,230 housing units, 2 percent of Carteret County's; 87 percent of the town's households own their home.

A wooden boardwalk crossing golden salt-marsh grass on the Tideland Trail
The Tideland Trail at the Cedar Point Recreation Area, Croatan National Forest, by Cedar Point, North Carolina Photo: US Forest Service - Southern Region, CC BY-SA 2.0, via Wikimedia Commons; cropped and resized

Cedar Point at a Glance

  • County: Carteret County
  • Population: 1,825 (2025), 1,777 (2020), up 2.7%
  • Land area: 2.23 square miles (818 people each)
  • Housing units: about 1,230 (±167)
  • Median year built: 2000 (±3); Carteret County: 1989
  • Owner-occupied: 87% (±3); Carteret County: 75%
  • Detached houses: 63% (±6); Carteret County: 61%
  • Apartments: 14% (±5)
  • Mobile homes: 20% (±5)
  • Climate zone: 3 on both maps
  • ENERGY STAR target for Cedar Point attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)

Census Bureau estimates for Cedar Point, 2020 to 2024 (± margin of error).

Cedar Point Homes and Their Attics

The Octagon House and Its Interior Chimneys

Edward Hill took four years, from 1855 to 1859, to build his two-story eight-sided house, following an 1848 book that promoted octagon homes. The county survey counts six rooms on each floor, every one heated by fireplaces on four interior brick chimneys, and a central cupola whose sash windows aired the whole house. Any older house with a chimney climbing through the attic floor shares one job with it. Light aluminum flashing bridges the opening around the brick, sealed in with caulk rated for high heat, never foam. A sheet-metal dam then keeps insulation about 2 inches off the masonry.

A Fishing Cottage That Grew Toward the Water

The 2012 survey documents a fishing cottage at Cedar Point built in 1939 for a couple from Goldsboro. It calls the house a late example of the Carolina cottage, a form common in the county since the 1800s, with its side-gabled roof carried out over a front porch. Years later it was lengthened about eight feet toward the water. Additions like that are worth tracing from inside. Each new section of roof can cover a separate pocket of attic, reached its own way and holding a different depth. Insulation should run evenly across all of them.

Attic Insulation in Cedar Point

Some 9 percent of Cedar Point's homes predate 1970; if your joists show above the insulation, ENERGY STAR says to add more insulation.

From 1990 to 2009, about 40 percent of Cedar Point homes were built to codes below ENERGY STAR's target; check their eaves, where ENERGY STAR says insulation is often thinnest.

The Local Climate

Cedar Point's center sits about 20 feet above sea level, 13 miles from NOAA's Newport/Morehead City Weather Office station, the best match for Cedar Point. The station's 1991 to 2020 normals average about 2,780 heating and 1,710 cooling degree days a year, so at Cedar Point's station, heating needs outweigh cooling.

Readings change over short distances around Cedar Point: NOAA's Hofmann Forest station, 17 miles away, averages about 3,120 heating degree days. The state energy code marks Carteret County warm and humid.

Homes by Age: What It Means for the Attic

About 63 percent of Cedar Point housing units are detached single-family houses, 20 percent mobile homes.

In 2010 or later, 32 percent of Cedar Point homes went up; check their air sealing as well as the depth.

About 12 percent of Cedar Point's housing units predate 1980; nearly all predate the state's 1978 insulation rule too.

Homes by Year Built

  • Before 1940: 2% (±2), about 25 units
  • 1940s: 3% (±2), about 30 units
  • 1950s: 3% (±3), about 40 units
  • 1960s: under 3%, about 15 units
  • 1970s: 3% (±2), about 35 units
  • 1980s: 15% (±5), about 190 units
  • 1990s: 23% (±8), about 280 units
  • 2000s: 17% (±5), about 215 units
  • 2010s: 30% (±6), about 360 units
  • 2020 or later: 3% (±2), about 35 units

Air Sealing and Duct Sealing in Cedar Point

In Cedar Point, 85 percent of homes heat with electricity; where that heat is forced air, ducts often run through the attic.

Air sealing comes first, as the EPA advises: wire and pipe holes, wall tops and soffits.

How Homes Here Are Heated

  • Electricity: 85% (±6), about 660 households; Carteret County: 87%
  • Piped gas: 10% (±5), about 80 households
  • Bottled or tank gas: 4% (±3), about 30 households

Power, Gas and Rebates

Power in and around Cedar Point comes from Duke Energy Progress and Carteret-Craven Electric Cooperative; your bill says which. For gas, Cedar Point is in the Carteret County franchise of Piedmont Natural Gas, and 10 percent of the town's homes heat with piped gas. Duke's free House Call fits many Cedar Point homes: 85 percent heat with electricity.

Rebate to check if Duke Energy Progress serves your Cedar Point home: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Cedar Point, check its current terms; the Carteret County page lists every program.

Attic Insulation Removal in Cedar Point

In a Cedar Point attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Cedar Point attic is sanitized and deodorized; dry, clean insulation stays.

Also Serving Near Cedar Point

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Cedar Point Insulation FAQs

Does Cedar Point have any historic district rules for my house?

No. Nothing in Cedar Point appears on the state's National Register list. That includes the Octagon House and the Bogue Inlet Coast Guard station, barged across the sound to a lot here after 1950. Carteret County's one preservation commission on the state's list belongs to Beaufort. With no designation in play, what gets checked before insulating depends on how old your house is and how it was put together.

Rain got through my roof in a storm. Does the attic insulation have to go?

If it stayed soaked, yes, once the roof is fixed. During Hurricane Dorian in September 2019, a volunteer gauge less than a mile west of Cedar Point caught 4.82 inches. By ENERGY STAR's guidance, damp insulation means the roof leaks, and fixing it comes first. The EPA advises drying water-damaged materials within 24 to 48 hours. Insulation that cannot dry out is vacuumed out and replaced with new.

Does attic insulation in Cedar Point need a permit?

Cedar Point Town Hall can say whether Carteret County Planning & Development, the town itself or another office handles permits in Cedar Point; ask before work starts.

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