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 borough code office in Shrewsbury Borough is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
Shrewsbury Borough has 1,772 homes, and half of them were standing by 1986. Below: what the code asks of a replacement here, the permit, and the town’s own records.
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 borough code office in Shrewsbury Borough 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). 38% of Shrewsbury Borough’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. Shrewsbury Borough’s answer is with the borough code office.
Checked against the code text on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Pennsylvania.
80% of the occupied homes in Shrewsbury Borough are lived in by their owners: 1,387 households, the people this line is for. Counting by decade, 9% before 1940, 15% before 1960, 38% before 1980 of the housing was in place, and 27% dates from 2000 on. (ACS 2020–2024.)
The housing is 77% detached houses, 8% attached single-family houses (rowhouses, twins and townhouses).
Of the 57 York County municipalities on this site, Shrewsbury Borough has the 49th largest share of homes built before 1980: 38%, against a county range of 25% to 98%.
ZIP codes: 17361
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Shrewsbury Borough | 1986 | 38% | 80% | 8% | 14 |
| Shrewsbury Township | 1983 | 45% | 86% | 8% | 13 |
| New Freedom | 1989 | 25% | 91% | 10% | 12 |
| Glen Rock | 1955 | 71% | 55% | 16% | 14 |
| Stewartstown | 1990 | 40% | 65% | 21% | 12 |
| Springfield Township, York County | 1987 | 38% | 91% | 14% | 16 |
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.
NOAA’s storm reports show 14 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Shrewsbury Borough, topping out at 2 in on August 2, 2008. The most recent was April 15, 2024.
At the county level, Shrewsbury Borough shares York County’s record of 3 storm disaster declarations since 2006, the newest DR-4618 (Remnants of Hurricane Ida, September 2021). (OpenFEMA.)
Storm reports are what observers logged, not a measure of damage to any roof. When wind or hail damage means a new roof.
Useful life is HUD’s planning figure, not a warranty. 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; 77% 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; 9% here predate 1940 | Sound slate can be reused (R908.5); broken slate cannot |
| 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 Shrewsbury Borough, and search it.
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 borough code office in Shrewsbury Borough 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). 38% of Shrewsbury Borough’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 Shrewsbury Borough was built in 1986, 38% of homes were built before 1980, 80% are owner-occupied.
Hail of 1 inch or larger was reported on 14 days within 10 miles of Shrewsbury Borough 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 Shrewsbury Borough, 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.