Roofing in Lawnton, Pennsylvania

Lawnton at a glance

Lawnton has about 1.5 square miles of land and roughly 4,765 people. It sits about 4 miles east of downtown Harrisburg-Carlisle. We cover ZIP code 17111.

No completed roof in Lawnton is logged in our job records yet.

Lawnton's houses, decade by decade, and what their roofs need

Only 63 of Lawnton's homes were built in 1939 or earlier, while 304 date to the 1950s, 235 to the 1960s, 494 to the 1970s, 356 to the 1980s and 364 to the 1990s. The Census counts 45 from 2000 to 2009 and none since, so roofing in Lawnton means replacing or repairing roofs on existing houses, not roofing new construction. Houses from the 1970s onward usually sit on plywood or other panel decking. On the 1950s and 1960s houses, board sheathing under the shingles is still possible, and the boards show from the attic.

Detached single-family houses make up 60% of Lawnton's housing units, but 225 homes are attached to a neighbor and 232 are in buildings of 5 to 9 units. On an attached house, one owner's new roof meets the next owner's older one at the shared wall. That joint needs flashing of its own so water off the older side cannot slip under the new shingles. That flashing gets named in our written scope, so you can see where your roof ends and your neighbor's begins.

The National Weather Service's Harrisburg climate summary for 2025, using 1991-2020 normals, gives 101.1 days a year with a low at or below 32°F and 18.7 days a year with a high at or below 32°F. Those figures come from the Harrisburg station, not from Lawnton itself. In Lawnton, winter means freeze and thaw. Snow melts on a roof warmed from below, runs down to the cold eave and freezes again as an ice dam, where meltwater can back up under the shingles. Summer brings its own wear, as humid months feed the dark algae streaks and the moss that settle on shaded slopes.

The housing stock in Lawnton

Lawnton is an unincorporated community in northern Swatara Township, sitting at an elevation of about 390 feet.

Where late-century roofs leak

Houses built in these decades usually sit on plywood or OSB and were first roofed in three-tab shingles, but we check each one in Lawnton rather than assume. Trouble tends to be at the penetrations rather than across the field: the rubber collar on a pipe boot splits years before the shingles give out. Ridge vents were hit and miss in these decades, and OSB that stays damp for a season softens in a way plywood does not, something you feel underfoot rather than see from the yard.

The houses we roof in Lawnton

The Census Bureau counts 1,959 homes in Lawnton, with a median year built of 1976. 63 of them (3%) went up before 1940 — one of the five lowest pre-1940 shares of the 37 places on this site — and 45 (2%) in 2000 or later. The 1970s were the busiest decade, adding 494 of today's homes (25%). Across Dauphin County the pre-1940 share is 19%, so Lawnton sits below it.

About 20 years is the service life that HUD's Residential Rehabilitation Inspection Guide gives for a roof's first layer. On that yardstick the 1,914 homes in Lawnton built before 2000 (98%) have outlived at least one roof, and the 700 built before 1970 (36%) are usually on a third covering or later. First replacements are arriving on the 45 homes built in the 2000s. At that age it pays to know whether the last roof was torn off or laid over the one before it, because a second layer hides the deck.

Detached single-family houses make up 60% (1,185); attached houses and townhouses 11% (225). 400 homes (20%) sit in two- to nine-unit buildings and 130 (7%) in buildings of ten units or more, where a resident rarely gets to choose the roofer. 1,317 of 1,850 occupied homes (71%) are lived in by their owners. On a housing mix like this, the work can include flat and low-slope sections, which turn up more on attached and multi-unit buildings.

Census ACS 2020–2024, tables B25034, B25035, B25024 and B25003: 1,959 homes, 1,850 occupied. Survey estimates.

Hail reports near Lawnton

From 2016 through 2025, NOAA’s Storm Prediction Center recorded 5 reports of hail of 1 inch or more within 5 miles of Lawnton’s center, spread over 2 storm days. 1 of them was 1.75 inches or larger. The largest, 1.75 inches, came on June 3, 2023, about 4.3 miles west of the center. Counts follow people as much as storms, since every report is a spotter’s or a resident’s.

If one of those storms crossed your street and nobody has been on the roof since, a storm inspection photographs what it did.

Do you need a permit here?

Permits and inspections for Lawnton run through the municipality that enforces Pennsylvania's Uniform Construction Code there, or through a third-party agency or the Department of Labor and Industry where it does not. Before a re-roof we ask the office that covers the address whether a permit is needed, and where one is, we pull it.

Which code applies in Lawnton

The code that applies in Lawnton is Pennsylvania's Uniform Construction Code, which adopts the 2021 International Residential Code for the whole state (34 Pa. Code 403.21). We build to it and to the manufacturer's instructions.

What goes into a new roof, layer by layer

The design figures behind the spec

Wind design is looked up by address across the Harrisburg-Carlisle, Pennsylvania metro: we build to the design wind speed set for the address; Township of Upper Allen’s published table gives 90 mph, and the building department can say which figure applies to a given address. See the roofing code guide for what it governs.

Nearby

Lawnton borders Rutherford.

Also in Dauphin County:

How Lawnton compares with its neighbors

Every Dauphin County city we cover, side by side →

Common questions about roofing in Lawnton

Researched 2026-11-09; housing, Census ACS 2020–2024; hail, NOAA SPC. Sources: data.census.gov · data.census.gov · data.census.gov · www2.census.gov · www2.census.gov · data.census.gov · data.census.gov · en.wikipedia.org · www.spc.noaa.gov. Rules and staff change; check with the jurisdiction.