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Fair Bluff, NC
6 miles southeast
737 people, about 7 times Marietta's population
Attic insulation in Fair BluffAttic Insulation in Marietta, NC
Blown-in attic insulation for Marietta, NC, 6 miles from Fair Bluff, plus removal and air sealing.
About Marietta and Its Homes
Marietta, in southern Robeson County, was settled about 1898 and incorporated in 1911. It was called Affinity until a Raleigh and Charleston Railroad promoter renamed it, and that line has since left town, though not much else about its homes is in print.
Marietta, in Robeson County, grew from 107 people in 2020 to 111 in 2025 (Census Bureau estimates), on 1.12 square miles.
Marietta at a Glance
- County: Robeson County
- Population: 111 (2025), 107 (2020), up 3.7%
- Land area: 1.12 square miles (99 people each)
- Housing units: about 60 (±16)
- Climate zone: 3 on both maps
- ENERGY STAR target for Marietta attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Marietta, 2020 to 2024 (± margin of error).
Attic Insulation in Marietta
If the joists show above the insulation in a Marietta attic, ENERGY STAR says to add more insulation.
The Local Climate
Marietta's center sits about 90 feet above sea level, 7 miles from NOAA's Lumber River State Park station, the best match for Marietta. The station's 1991 to 2020 normals average about 2,930 heating and 1,720 cooling degree days a year, so at Marietta's station, heating needs outweigh cooling.
Homes by Age: What It Means for the Attic
At about 60 housing units, give or take 16, Marietta is too small for the survey to date its houses. For Marietta, the nearest town with solid figures is Fair Bluff, 6 miles off: median year built 1977 and about 35 percent of homes built before 1970.
Air Sealing and Duct Sealing in Marietta
Air sealing in a Marietta attic covers wire and pipe holes, wall tops, the attic stair and bath fans.
How Homes Here Are Heated
- Bottled or tank gas: 25% (±11), about 15 households
- Oil or kerosene: under 8%
Power, Gas and Rebates
Duke Energy Progress serves most of Marietta, Lumbee River EMC its edges; your bill says which. For gas, Marietta is in the Robeson County franchise of Piedmont Natural Gas, whose mains may not reach every street in Marietta.
Rebate to check in Marietta: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Marietta, check its current terms; the Robeson County page lists every program.
Attic Insulation Removal in Marietta
In a Marietta attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Marietta attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Marietta
Nearest to Marietta first.
Fairmont, NC
9 miles north
Its NOAA station logs about 320 fewer heating degree days than Marietta's; 2,231 people, about 20 times Marietta's population
Insulation contractor serving Fairmont
Marietta Insulation FAQs
My Marietta farmhouse has a back wing added later. Does it have its own attic?
It can, and that space is easy to miss. A wing built under a separate roof may hide a small attic of its own, with a separate hatch or no hatch at all. So on install day the crew checks under every roof section, not only the main one. ENERGY STAR calls for an even layer of insulation without thin patches, which means each section gets measured and filled separately. A house in a town settled about 1898 may have been enlarged more than once.
Is there a historic depot or district in Marietta that limits what I can do?
No. The railroad that gave Marietta its name is gone, and the state preservation office shows no Register entry for the town on its Robeson County rows. Its 2023 directory of local commission staff leaves out the county as well. So no historic body weighs in on your roof or attic, and the job is planned around the house alone.
Does attic insulation in Marietta need a permit?
Marietta Town Hall can say whether Robeson County Community Development, the town itself or another office handles permits in Marietta; ask before work starts.
Helpful Guides
- Power from Duke Energy Progress: high summer electric bills and home energy audits
Sources
Census Bureau figures for Marietta, NOAA normals for the Lumber River State Park station, Duke Energy Progress (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Marietta introduction and questions (read October 20, 2026):
- Marietta, in The North Carolina Gazetteer (William S. Powell, 2nd ed., UNC Press 2010), NCpedia
- NC Listings in the National Register of Historic Places, NC State Historic Preservation Office
- Adding Attic Insulation, ENERGY STAR do-it-yourself guide
- Historic Preservation Commission Staff in North Carolina, listed by county, as of 2/20/2023 (NC HPO)
Marietta, NC
Open in Google Maps (opens in a new tab)Serving Marietta, NC
Insulation Pros is an insulation contractor serving North Carolina, Marietta and the rest of Robeson County included.
Reach us
Send the square footage of your Marietta attic, or call (336) 870-3893.