Franklinton, NC
9 miles west
Power from Duke Energy Progress (Louisburg: a town system); Center about 190 feet higher than Louisburg's
Attic insulation in FranklintonAttic Insulation in Louisburg, NC
Blown-in attic insulation for Louisburg, NC, in Franklin County, plus removal and air sealing.
About Louisburg and Its Homes
Louisburg, the Franklin County seat on the Tar River, still follows the street grid laid out for it in 1779. North of the river, frame houses from the Georgian era through the bungalow years fill that grid, some with rooms tucked under the roof.
Louisburg, in Franklin County, grew from 3,113 people in 2020 to 3,480 in 2025 (Census Bureau estimates), on 2.96 square miles. No town in Franklin County has more people than Louisburg.
Louisburg has about 1,270 housing units, 4 percent of Franklin County's; about 34 percent of the town's households own their home.
Louisburg at a Glance
- County: Franklin County
- Population: 3,480 (2025), 3,113 (2020), up 11.8%
- Land area: 2.96 square miles (1,176 people each)
- Housing units: about 1,270 (±246)
- Owner-occupied: 34% (±8); Franklin County: 79%
- Detached houses: 57% (±10); Franklin County: 72%
- Attached houses: under 6%
- Apartments: 35% (±13)
- Mobile homes: 6% (±5)
- Climate zone: 4 (state code), 3 (2021 map)
- ENERGY STAR target for Louisburg attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Louisburg, 2020 to 2024 (± margin of error).
Louisburg Homes and Their Attics
Story-and-a-Half Houses on the 1779 Grid
The Louisburg Historic District nomination, listed in 1987, says its oldest houses were Georgian dwellings, a story and a half of frame under a side-gable roof. A century later the town's bungalows, built from the late 1910s until the 1929 crash, often took the same height, with dormers on the better ones. In both kinds, the second floor is carved out of the roof itself. Short walls along the sides hide wedge-shaped spaces between the room and the rafters. Those wedges, and the open joist bays under them, leak easily into the rooms. We seal and insulate them along with the flat ceiling above.
Queen Anne Houses From the Tobacco Market Years
Louisburg boomed in the 1890s and early 1900s on its tobacco and cotton markets, the nomination says, and the finer houses of the district from those years are mostly Queen Anne. They have uneven outlines, shingled gables, dormers and wraparound porches. A roof like that can break the attic into separate pockets over wings, bays and porches, each needing its own way in and an even depth of insulation without low spots. Houses this old may still hold early wiring, so an electrician rules out live knob-and-tube wiring before any insulation is placed near it.
Attic Insulation in Louisburg
If the joists show above the insulation in a Louisburg attic, ENERGY STAR says to add more insulation.
Built from 1970 to 1989, about 25 percent of Louisburg homes may hold settled fiberglass; check its depth against the joists.
The Local Climate
Louisburg's center sits about 220 feet above sea level, under a mile from NOAA's Louisburg station, the best match for Louisburg. The station's 1991 to 2020 normals average about 3,650 heating and 1,550 cooling degree days a year, so at Louisburg's station, heating needs outweigh cooling.
Homes by Age: What It Means for the Attic
About 57 percent of Louisburg housing units are detached single-family houses.
Built from 1940 to 1969, before the state's 1978 insulation rule, about 25 percent of Louisburg homes often have little insulation.
Renters hold about 66 percent of Louisburg's occupied homes, so many attic decisions rest with landlords.
Homes by Year Built
- Before 1940: 22% (±12), about 280 units
- 1940s: 4% (±3), about 50 units
- 1950s: 13% (±8), about 160 units
- 1960s: 10% (±6), about 125 units
- 1970s: 18% (±8), about 220 units
- 1980s: 9% (±6), about 120 units
- 1990s: 7% (±4), about 90 units
- 2000s: 5% (±4), about 65 units
- 2010s: under 21%, about 135 units
- 2020 or later: under 4%, about 25 units
Air Sealing and Duct Sealing in Louisburg
In Louisburg, about 74 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: 74% (±11), about 830 households; Franklin County: 72%
- Piped gas: 15% (±4), about 175 households
- Bottled or tank gas: 6% (±5), about 65 households
- Oil or kerosene: under 7%, about 35 households
Power, Gas and Rebates
Louisburg, an ElectriCities public power town, runs its own electric system. For gas, Louisburg is in the Franklin County franchise of Enbridge Gas North Carolina, and 15 percent of the town's homes heat with piped gas.
Program to ask about in Louisburg: ElectriCities energy audits (the town's electric system), home energy audits for member-town customers; ask the town's utility office. Before a job in Louisburg, check its current terms; the Franklin County page lists every program.
Attic Insulation Removal in Louisburg
In a Louisburg attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Louisburg attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Louisburg
Nearest to Louisburg first.
Bunn, NC
10 miles south
391 people, about a ninth of Louisburg's population
Attic insulation in BunnKittrell, NC
12 miles northwest
Center about 220 feet higher than Louisburg's; Its NOAA station logs about 240 more heating degree days than Louisburg's
Attic insulation in KittrellYoungsville, NC
12 miles southwest
Center about 250 feet higher than Louisburg's
Attic insulation in YoungsvilleCastalia, NC
14 miles east
280 people, under a tenth of Louisburg's population
Attic insulation in Castalia
Louisburg Insulation FAQs
Does the Louisburg Historic District need to approve attic insulation?
Usually not. The town has two districts: the National Register district and a local Louisburg Historic District, which works as a zoning layer under the town's historic ordinance. State law requires a certificate of appropriateness from the commission for changes to the outside of a building in a local district. The commission has no say over interior arrangement. Insulating the attic and sealing leaks are inside work. New roof or gable vents show from the street, so ask the town first.
My house is on Kenmore Avenue, south of the river. Is it in a Louisburg historic district?
Probably not, but check the town's map. The 1986 survey behind the National Register district left out the Kenmore Avenue and South Main Street neighborhood across the Tar River because of demolitions and remodeling. The town describes its local district as north of the river, centered on North Main Street. So the district rules likely do not reach you. Your attic is still judged by the age of the house: wiring, chimneys and roof leaks get checked before insulation goes in.
I rent out a house near Louisburg College. Can I have its attic insulated?
Yes. It is the owner's decision, the same as for any house. Part of the college campus sits inside the National Register district. A rental on the nearby streets may also fall in the town's local district, and then its rules for outside changes apply. Inside the attic the work is the same as in an owner's home. We seal the leaks around wiring, pipes and chimneys first, then blow insulation to an even depth. It helps to let your tenants know which day the attic hatch will be opened.
Are there rebates for attic insulation in Louisburg?
Louisburg's municipal electric system lists no insulation rebate for Louisburg on the pages we read; it does offer ElectriCities energy audits. Income-eligible Louisburg households may qualify for Energy Saver North Carolina; check whether it has opened in Franklin County. The Franklin County page lists every other program.
Does attic insulation in Louisburg need a permit?
Louisburg Town Hall can say whether Franklin County Building Inspections, the town itself or another office handles permits in Louisburg; ask before work starts.
Helpful Guides
- An energy audit program from the town's own utility: home energy audits
Sources
Census Bureau figures for Louisburg, NOAA normals for the Louisburg station, Louisburg's municipal electric system (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Louisburg notes and questions (read October 20, 2026):
- Louisburg, in The North Carolina Gazetteer (William S. Powell, 2nd ed., UNC Press 2010), NCpedia
- Louisburg History, Town of Louisburg
- Louisburg Historic District, National Register nomination (NC HPO)
- Sealing Air Leaks in the Attic, ENERGY STAR do-it-yourself guide
- Building Construction Problem Areas, Iowa Department of Health and Human Services weatherization training
- Adding Attic Insulation, ENERGY STAR do-it-yourself guide
- Attic Insulation Project, ENERGY STAR
- N.C. Gen. Stat. 160D-947, Certificate of appropriateness required
- Historic Preservation Commission Staff in North Carolina, listed by county, as of 2/20/2023 (NC HPO)
- Attic Air Sealing Project, ENERGY STAR
Louisburg, NC
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Insulation Pros is an insulation contractor serving North Carolina, Louisburg and the rest of Franklin County included.
Reach us
Send the square footage of your Louisburg attic, or call (336) 870-3893.