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 Adamstown Borough is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
The median home in Adamstown Borough was built in 1996; there are 760 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 borough code office in Adamstown Borough 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 36% of Adamstown Borough’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. Adamstown Borough’s answer is with the borough 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 597 of Adamstown Borough’s occupied homes, or 82%. By year built, 20% before 1940, 27% before 1960, 36% before 1980; 44% went up in 2000 or later. (ACS 2020–2024.)
By building type: 66% detached houses, 23% attached single-family houses (rowhouses, twins and townhouses), 6% buildings of two to four units.
44% 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 59 Lancaster County municipalities on this site, Adamstown Borough has the 52nd largest share of homes built before 1980: 36%, against a county range of 27% to 87%.
ZIP codes: 19501
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Adamstown Borough, Lancaster County | 1996 | 36% | 82% | 23% | 18 |
| Adamstown Borough, Berks County | 1996 | 36% | 82% | 23% | 18 |
| East Cocalico | 1983 | 46% | 83% | 9% | 17 |
| Brecknock Township, Lancaster County | 1983 | 43% | 86% | 8% | 16 |
| Denver | 1975 | 59% | 74% | 27% | 18 |
| Spring Township, Berks County | 1975 | 57% | 75% | 18% | 18 |
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 18 separate days within 10 miles of Adamstown Borough; the largest was 2.5 in on May 22, 2014. The most recent was July 17, 2024.
That is more hail days than 85% of the places in the state on this site.
Severe Winter Storm and Snowstorm (DR-4267, March 2016) is the latest of 3 federal storm declarations covering Lancaster County since 2006. (OpenFEMA.)
A report says hail fell near Adamstown Borough, 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; 66% 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 | Standing seam that carries its own loads can skip the tear-off (R908.3.1) |
| Slate | 75 years | Older houses; 20% 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 (23% of homes here are attached) | Where the roof meets a wall or parapet |
Before signing for a roof in Adamstown Borough, get the contractor’s PA registration number: the home improvement law requires registration with the Attorney General above $5,000 a year of such work, and the number on contracts and estimates (HICPA § 3, § 6).
The price side is in what a new roof costs in Pennsylvania; the paperwork side in checking a roofing contractor.
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 Adamstown Borough 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 36% of Adamstown Borough’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 Adamstown Borough was built in 1996, 36% of homes were built before 1980, 82% are owner-occupied.
Hail of 1 inch or larger was reported on 18 days within 10 miles of Adamstown Borough from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
Before signing for a roof in Adamstown Borough, get the contractor’s PA registration number: the home improvement law requires registration with the Attorney General above $5,000 a year of such work, and the number on contracts and estimates (HICPA § 3, § 6).
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.