Permit
Local ordinance, not the state
The state code does not cover a reroof that changes no structure (34 Pa. Code § 403.1(b)(8)). So the township code office in Mahoning Township is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
Mahoning Township has 1,946 homes, and half of them were standing by 1973. Below: what the code asks of a replacement here, the permit, and the town’s own records.
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This number connects homeowners who are planning a new roof or a full roof replacement with independent local roofing contractors. It is not for leak repairs or patch jobs. The call must come from the homeowner who decides on the roof. Calls may be recorded.

Permit
The state code does not cover a reroof that changes no structure (34 Pa. Code § 403.1(b)(8)). So the township code office in Mahoning Township is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
Layers
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 63% of Mahoning Township’s homes were built before 1980; many have been reroofed before.
Ice barrier
IRC R905.1.2 calls for an ice barrier where Table R301.2 says so; in Pennsylvania the municipality completes that table. Mahoning Township’s answer is with the township code office.
Checked against the code text on October 24, 2026. Everything else the state requires: roof replacement in Pennsylvania.
Owners live in 1,529 of Mahoning Township’s occupied homes, or 87%. Counting by decade, 19% before 1940, 32% before 1960, 63% before 1980 of the housing was in place, and 9% dates from 2000 on. (ACS 2020–2024.)
The housing is 80% detached houses, 8% buildings of two to four units, 10% manufactured homes.
Of the 15 Carbon County municipalities on this site, Mahoning Township has the 10th largest share of homes built before 1980: 63%, against a county range of 21% to 95%.
ZIP codes: 18235
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Mahoning Township, Carbon County | 1973 | 63% | 87% | 1% | 12 |
| Lehighton | 1942 | 93% | 50% | 21% | 12 |
| East Penn | 1989 | 40% | 87% | 4% | 14 |
| Jim Thorpe | 1938 | 82% | 87% | 27% | 11 |
| Summit Hill | 1938 | 92% | 82% | 44% | 10 |
| Nesquehoning | 1938 | 75% | 61% | 32% | 11 |
Median built: median year the homes were built. Before 1980: share of homes built then. Owners: share of homes that are owner-occupied. Row, twin: share of homes that are rowhouses, twins or townhouses. Census ACS 2020–2024. Hail days: days with hail of 1 inch or larger within 10 miles, 2006–2025, NOAA Storm Prediction Center.
Since 2006 the National Weather Service has logged hail of 1 inch or larger on 12 separate days within 10 miles of Mahoning Township; the largest was 3 in on May 26, 2011. The most recent was July 3, 2025.
At the county level, Mahoning Township shares Carbon County’s record of 1 storm disaster declaration since 2006, the newest DR-1649 (Severe Storms, Flooding, and Mudslides, June 2006). (OpenFEMA.)
Storm reports are what observers logged, not a measure of damage to any roof. When wind or hail damage means a new roof.
Lifespans come from HUD’s capital-needs table, not from a brochure. More in the guides to shingles, metal, slate and flat roofs.
| Material | HUD useful life | Fits a house like | Watch for |
|---|---|---|---|
| Asphalt shingles | 20 years | Most pitched roofs; 80% of homes here are detached | Wind class set by the design wind speed (IRC Table R905.2.4.1) |
| Metal (standing seam, panels) | 50 years | Simple roofs with long, unbroken slopes | A complete standing-seam system may go over the old roof (R908.3.1) |
| Slate | 75 years | Older houses; 19% here predate 1940 | Never a base for a new layer (R908.3.1.1); heavy |
| Flat roof: EPDM or TPO | 15 years | Additions and porch roofs | Coating is not a replacement |
Before signing for a roof in Mahoning Township, get the contractor’s PA registration number: the home improvement law requires registration with the Attorney General above $5,000 a year of such work, and the number on contracts and estimates (HICPA § 3, § 6).
Contracts, deposits and the right to cancel: checking a roofing contractor. What moves the price: new roof cost in Pennsylvania.
Local ordinance, not the state. The state code does not cover a reroof that changes no structure (34 Pa. Code § 403.1(b)(8)). So the township code office in Mahoning Township is the one to ask before work starts.
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 63% of Mahoning Township’s homes were built before 1980; many have been reroofed before.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Mahoning Township was built in 1973, 63% of homes were built before 1980, 87% are owner-occupied.
Hail of 1 inch or larger was reported on 12 days within 10 miles of Mahoning Township from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
Before signing for a roof in Mahoning Township, get the contractor’s PA registration number: the home improvement law requires registration with the Attorney General above $5,000 a year of such work, and the number on contracts and estimates (HICPA § 3, § 6).
The full list: before you call.
Checked October 24, 2026. Laws and code editions change; the date says when these were last read at the source.