Half of the 7,276 homes in West Lampeter were built before 1990. 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
Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). The township code office can say what West Lampeter requires.
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). With 30% of West Lampeter’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. The contractor or the township code office in West Lampeter will know.
Rules as read on October 24, 2026. Everything else the state requires: roof replacement in Pennsylvania.
Of 6,841 occupied homes in West Lampeter, 4,422 (65%) are owner-occupied. By year built, 8% before 1940, 19% before 1960, 30% before 1980; 32% went up in 2000 or later. (ACS 2020–2024.)
By building type: 54% detached houses, 16% attached single-family houses (rowhouses, twins and townhouses).
32% 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, West Lampeter has the 58th largest share of homes built before 1980: 30%, against a county range of 27% to 87%.
ZIP codes: 17584 · 17602
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| West Lampeter | 1990 | 30% | 65% | 16% | 19 |
| Pequea | 1987 | 40% | 69% | 29% | 19 |
| East Lampeter | 1983 | 45% | 62% | 17% | 27 |
| Strasburg Borough | 1976 | 53% | 73% | 16% | 20 |
| Strasburg Township | 1981 | 49% | 84% | 3% | 19 |
| Lancaster | 1938 | 86% | 49% | 52% | 23 |
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 19 days since 2006 with hail of at least 1 inch inside a 10-mile circle around West Lampeter, topping out at 1.75 in on August 10, 2008. The most recent was July 17, 2021.
That is more hail days than 89% of the places in the state on this site.
Federal major-disaster declarations for storms in Lancaster County since 2006: 3, most recently DR-4267, Severe Winter Storm and Snowstorm, declared March 2016. (OpenFEMA.)
A report says hail fell near West Lampeter, not that it damaged a roof. When wind or hail damage means a new roof.
HUD’s useful-life figures are for planning; a warranty is a separate promise. For West Lampeter’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; 54% 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 | Standing seam that carries its own loads can skip the tear-off (R908.3.1) |
| Slate | 75 years | Older houses; 8% here predate 1940 | Can’t be roofed over; check the framing for the weight |
| Flat roof: EPDM or TPO | 15 years | Low-slope roofs and rear sections (16% of homes here are attached) | Coating is not a replacement |
Before signing for a roof in West Lampeter, 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.
West Lampeter’s ordinance decides. Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). The township code office can say what West Lampeter requires.
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). With 30% of West Lampeter’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 West Lampeter was built in 1990, 30% of homes were built before 1980, 65% are owner-occupied.
Hail of 1 inch or larger was reported on 19 days within 10 miles of West Lampeter 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 West Lampeter, 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.