The median home in Centre Township was built in 1986; there are 1,099 of them. What the code requires when that roof is replaced, and who signs off, is below.
New Roofing Costs connects homeowners with independent local roofing contractors. We do not perform roofing work.
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 Centre Township is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
Layers
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 39% of Centre Township’s homes were built before 1980, ask what is under the newest layer.
Ice barrier
IRC R905.1.2 calls for an ice barrier where Table R301.2 says so; in Pennsylvania the municipality completes that table. Centre Township’s answer is with the township code office.
Rules as read on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Pennsylvania.
Owners live in 993 of Centre Township’s occupied homes, or 95%. By year built, 16% before 1940, 19% before 1960, 39% before 1980; 23% went up in 2000 or later. (ACS 2020–2024.)
By building type: 89% detached houses, 10% manufactured homes.
Of the 19 Perry County municipalities on this site, Centre Township has the 18th largest share of homes built before 1980: 39%, against a county range of 38% to 98%.
ZIP codes: 17068
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Centre Township, Perry County | 1986 | 39% | 95% | 0% | 4 |
| Bloomfield | 1943 | 77% | 73% | 11% | 7 |
| Spring Township, Perry County | 1979 | 51% | 81% | 1% | 4 |
| Carroll Township, Perry County | 1987 | 38% | 81% | 3% | 8 |
| Juniata | 1983 | 41% | 96% | 3% | 5 |
| Saville | 1983 | 45% | 89% | 3% | 4 |
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.
Within 10 miles of Centre Township, hail of an inch or more was reported on 4 days between 2006 and 2025, the biggest stones 1.25 in on July 18, 2012. The most recent was May 16, 2025.
That is fewer than most places in the state on this site (median 12 days).
Severe Winter Storm and Snowstorm (DR-4267, March 2016) is the latest of 3 federal storm declarations covering Perry County since 2006. (OpenFEMA.)
A report says hail fell near Centre Township, not that it damaged a 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; 89% 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 | Standing seam that carries its own loads can skip the tear-off (R908.3.1) |
| Slate | 75 years | Older houses; 16% here predate 1940 | Sound slate can be reused (R908.5); broken slate cannot |
| Flat roof: EPDM or TPO | 15 years | Porches, additions, low-slope rears | Seams at walls and drainage |
Pennsylvania’s home improvement law (HICPA § 3, § 6) requires registration with the Attorney General from $5,000 a year of such work and puts the number on every estimate; ask for it in Centre Township and look it up.
The price side is in what a new roof costs in Pennsylvania; the paperwork side in checking a roofing contractor.
Centre Township’s ordinance decides. 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 Centre Township is the one to ask before work starts.
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 39% of Centre Township’s homes were built before 1980, ask what is under the newest layer.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Centre Township was built in 1986, 39% of homes were built before 1980, 95% are owner-occupied.
Hail of 1 inch or larger was reported on 4 days within 10 miles of Centre Township from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
Pennsylvania’s home improvement law (HICPA § 3, § 6) requires registration with the Attorney General from $5,000 a year of such work and puts the number on every estimate; ask for it in Centre Township and look it up.
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.