Permit
Center’s ordinance decides
Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. The township code office can say what Center requires.
Source: 34 Pa. Code § 403.1(b)
The median home in Center was built in 1984; there are 926 of them. What the code requires when that roof is replaced, and who signs off, is below.
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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
Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. The township code office can say what Center requires.
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 45% of Center’s homes were built before 1980, ask what is under the newest layer.
Ice barrier
The code requires an ice barrier where the local climate table (Table R301.2) says so, and each Pennsylvania municipality fills that table in. Ask the township code office or the contractor what Center’s says.
Checked against the code text on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Pennsylvania.
Owners live in 620 of Center’s occupied homes, or 73%. Counting by decade, 18% before 1940, 21% before 1960, 45% before 1980 of the housing was in place, and 18% dates from 2000 on. (ACS 2020–2024.)
The housing is 69% detached houses, 7% buildings of two to four units, 24% manufactured homes.
24% of homes in Center are manufactured homes (218). A roof on a manufactured home is its own kind of job; tell the person on the line that it is one.
Of the 15 Snyder County municipalities on this site, Center has the 14th largest share of homes built before 1980: 45%, against a county range of 30% to 91%.
ZIP codes: 17842 · 17862
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Center | 1984 | 45% | 73% | 1% | 6 |
| Middleburg | 1955 | 81% | 52% | 4% | 8 |
| Franklin Township, Snyder County | 1974 | 61% | 76% | 1% | 7 |
| Limestone Township, Union County | 1984 | 42% | 92% | 0% | 3 |
| Mifflinburg | 1960 | 71% | 66% | 8% | 3 |
| Middlecreek | 1982 | 48% | 78% | 1% | 5 |
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 6 separate days within 10 miles of Center; the largest was 1.5 in on June 3, 2023.
That is fewer than most places in the state on this site (median 12 days).
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; 69% 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 | Roofs that will carry solar later | A complete standing-seam system may go over the old roof (R908.3.1) |
| Slate | 75 years | Older houses; 18% 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 |
A contractor who does $5,000 or more of home improvement work a year must be registered with the Pennsylvania Attorney General, and the number has to be on every contract and estimate (HICPA § 3, § 6). Ask for it before anyone starts on a roof in Center, and search it.
Contracts, deposits and the right to cancel: checking a roofing contractor. What moves the price: new roof cost in Pennsylvania.
Center’s ordinance decides. Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. The township code office can say what Center requires.
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 45% of Center’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 Center was built in 1984, 45% of homes were built before 1980, 73% are owner-occupied.
Hail of 1 inch or larger was reported on 6 days within 10 miles of Center from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
A contractor who does $5,000 or more of home improvement work a year must be registered with the Pennsylvania Attorney General, and the number has to be on every contract and estimate (HICPA § 3, § 6). Ask for it before anyone starts on a roof in Center, and search it.
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.