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 Chambersburg is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
Half of the 10,329 homes in Chambersburg were built before 1963. The rules below decide how much of the old roof has to come off and what goes under the new one.
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 Chambersburg is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
Layers
A new roof may go over one existing layer; with two or more, or over slate, clay or cement tile, everything comes off to the deck (IRC R908.3.1.1). 64% of Chambersburg’s homes were built before 1980, so count the layers before comparing quotes.
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 borough code office or the contractor what Chambersburg’s says.
Checked against the code text on October 24, 2026. The state’s code edition and the rest of its rules: roof replacement in Pennsylvania.
43% of the occupied homes in Chambersburg are lived in by their owners: 4,200 households, the people this line is for. Counting by decade, 24% before 1940, 48% before 1960, 64% before 1980 of the housing was in place, and 19% dates from 2000 on. (ACS 2020–2024.)
The housing is 39% detached houses, 29% attached single-family houses (rowhouses, twins and townhouses), 16% buildings of two to four units.
Of the 20 Franklin County municipalities on this site, Chambersburg has the 5th largest share of homes built before 1980: 64%, against a county range of 38% to 80%.
ZIP codes: 17201
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Chambersburg | 1963 | 64% | 43% | 29% | 9 |
| Hamilton Township, Franklin County | 1988 | 41% | 85% | 4% | 9 |
| Guilford | 1982 | 47% | 81% | 9% | 11 |
| Greene Township, Franklin County | 1987 | 38% | 78% | 11% | 10 |
| Antrim | 1985 | 46% | 89% | 8% | 14 |
| St. Thomas | 1976 | 60% | 84% | 0% | 7 |
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 9 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Chambersburg, topping out at 1.75 in on August 10, 2008. The most recent was July 12, 2022.
At the county level, Chambersburg shares Franklin County’s record of 4 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.
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; 39% 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; 24% here predate 1940 | Never a base for a new layer (R908.3.1.1); heavy |
| Flat roof: EPDM or TPO | 15 years | Low-slope roofs and rear sections (29% of homes here are attached) | Seams at walls and drainage |
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 Chambersburg, 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 Chambersburg is the one to ask before work starts.
A new roof may go over one existing layer; with two or more, or over slate, clay or cement tile, everything comes off to the deck (IRC R908.3.1.1). 64% of Chambersburg’s homes were built before 1980, so count the layers before comparing quotes.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Chambersburg was built in 1963, 64% of homes were built before 1980, 43% are owner-occupied.
Hail of 1 inch or larger was reported on 9 days within 10 miles of Chambersburg 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 Chambersburg, 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.