Half of the 1,107 homes in Eddystone were built before 1948. Below: what the code asks of a replacement here, the permit, and the town’s own records.
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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
Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. Whether Eddystone wants a permit is in its own ordinance; ask the borough code office before the old roof comes off.
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). 88% of Eddystone’s homes were built before 1980; many have been reroofed before.
Ice barrier
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). Ask the borough code office or the contractor what Eddystone’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.
Of 1,029 occupied homes in Eddystone, 650 (63%) are owner-occupied. Counting by decade, 32% before 1940, 72% before 1960, 88% before 1980 of the housing was in place, and 7% dates from 2000 on. (ACS 2020–2024.)
The housing is 17% detached houses, 58% attached single-family houses (rowhouses, twins and townhouses), 14% buildings of two to four units.
With about three in five of homes attached, many roofs here meet a neighbor’s roof at a party wall. Say so on the call, and ask the contractor how the new roof will be tied in where it meets the house next door.
Older houses hide their history: ask the contractor to confirm the deck (board or sheet) and every layer above it before pricing, because slate or two layers mean a full tear-off.
Of the 48 Delaware County municipalities on this site, Eddystone has the 19th largest share of homes built before 1980: 88%, against a county range of 20% to 98%.
ZIP codes: 19022
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Eddystone | 1948 | 88% | 63% | 58% | 14 |
| Ridley Park | 1955 | 89% | 64% | 22% | 18 |
| Chester | 1949 | 85% | 40% | 62% | 15 |
| Upland | 1946 | 90% | 42% | 58% | 16 |
| Parkside | 1952 | 98% | 78% | 32% | 15 |
| Ridley | 1957 | 87% | 74% | 28% | 19 |
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 Eddystone, topping out at 2.5 in on May 22, 2014. The most recent was April 4, 2025.
Delaware County has had 3 federal major-disaster declarations for storms since 2006; the latest was 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; 17% 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; 32% 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 (58% of homes here are attached) | Coating is not a replacement |
Before signing for a roof in Eddystone, 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).
Contracts, deposits and the right to cancel: checking a roofing contractor. What moves the price: new roof cost in Pennsylvania.
Ask Eddystone first. Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. Whether Eddystone wants a permit is in its own ordinance; ask the borough code office before the old roof comes off.
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). 88% of Eddystone’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 Eddystone was built in 1948, 88% of homes were built before 1980, 63% are owner-occupied.
Hail of 1 inch or larger was reported on 14 days within 10 miles of Eddystone 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 Eddystone, 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.