Permit
Local ordinance, not the state
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 Hamilton Township requires.
Source: 34 Pa. Code § 403.1(b)
Roof Replacement in Hamilton Township, Adams County, PA
Hamilton Township has 1,010 homes, and half of them were standing by 1991. 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.
Call (833) 781-1806 Replacement and new roofs only · homeowners
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.
The rules for a reroof in Hamilton Township
Layers
No third layer
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). 43% of Hamilton Township’s homes were built before 1980; many have been reroofed before.
Ice barrier
Set by the local climate table
Whether an eave membrane is a code item depends on the climate table the municipality filled in when it adopted the code (IRC R905.1.2, Table R301.2). The contractor or the township code office in Hamilton Township will know.
Checked against the code text on October 24, 2026. Everything else the state requires: roof replacement in Pennsylvania.
Homes and roofs in Hamilton Township
Of 972 occupied homes in Hamilton Township, 884 (91%) are owner-occupied. Counting by decade, 14% before 1940, 21% before 1960, 43% before 1980 of the housing was in place, and 36% dates from 2000 on. (ACS 2020–2024.)
The housing is 89% detached houses, 5% manufactured homes.
36% of homes here were built in 2000 or later. HUD’s useful-life table gives an asphalt-shingle roof 20 years, so roofs on houses from the early 2000s are reaching that age.
Of the 28 Adams County municipalities on this site, Hamilton Township has the 18th largest share of homes built before 1980: 43%, against a county range of 26% to 87%.
ZIP codes: 17301
Hamilton Township and the towns around it
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Hamilton Township, Adams County | 1991 | 43% | 91% | 2% | 15 |
| New Oxford | 1968 | 72% | 53% | 23% | 17 |
| Berwick Township | 1990 | 34% | 86% | 5% | 16 |
| East Berlin | 1955 | 69% | 61% | 4% | 13 |
| Oxford Township | 1993 | 27% | 70% | 19% | 17 |
| Reading Township | 1987 | 36% | 90% | 1% | 9 |
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.
Hail and storms near Hamilton Township
Since 2006 the National Weather Service has logged hail of 1 inch or larger on 15 separate days within 10 miles of Hamilton Township; the largest was 1.75 in on July 27, 2008. The most recent was March 16, 2025.
At the county level, Hamilton Township shares Adams County’s record of 3 storm disaster declarations since 2006, the newest DR-4267 (Severe Winter Storm and Snowstorm, March 2016). (OpenFEMA.)
Storm reports are what observers logged, not a measure of damage to any roof. When wind or hail damage means a new roof.
What goes on the roof next
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Hamilton Township’s houses: 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 | Low pitches and long runs | A complete standing-seam system may go over the old roof (R908.3.1) |
| Slate | 75 years | Older houses; 14% here predate 1940 | Can’t be roofed over; check the framing for the weight |
| Flat roof: EPDM or TPO | 15 years | Additions and porch roofs | Where the roof meets a wall or parapet |
Checking a contractor in Pennsylvania
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 Hamilton Township, and search it.
Contracts, deposits and the right to cancel: checking a roofing contractor. What moves the price: new roof cost in Pennsylvania.
Questions about a new roof in Hamilton Township
Do I need a permit to replace a roof in Hamilton Township?
Local ordinance, not the state. 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 Hamilton Township requires.
Can a new roof go over the old one in Hamilton Township?
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). 43% of Hamilton Township’s homes were built before 1980; many have been reroofed before.
When were most homes in Hamilton Township built?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Hamilton Township was built in 1991, 43% of homes were built before 1980, 91% are owner-occupied.
How many hail days has Hamilton Township had?
Hail of 1 inch or larger was reported on 15 days within 10 miles of Hamilton Township from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
What license or registration should a roofer in Hamilton Township have?
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 Hamilton Township, and search it.
What they will ask on the phone
- Where the house is: the Hamilton Township address or ZIP
- One story or two (or more), detached or attached
- The roof you have today, shingle, metal, slate, tile or flat, and its rough age
- Whether there is one layer or more, if you know
- That the job is a full replacement or a new roof, and your timing
- Whether the house is in a historic district or an HOA
- That you own the home and decide on the roof
The full list: before you call.