Half of the 770 homes in South Canaan were built before 1978. 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)). Whether South Canaan wants a permit is in its own ordinance; ask the township 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). With 53% of South Canaan’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 South Canaan will know.
Rules as read on October 24, 2026. Everything else the state requires: roof replacement in Pennsylvania.
80% of the occupied homes in South Canaan are lived in by their owners: 522 households, the people this line is for. By year built, 20% before 1940, 28% before 1960, 53% before 1980; 22% went up in 2000 or later. (ACS 2020–2024.)
By building type: 89% detached houses, 10% manufactured homes.
Of the 18 Wayne County municipalities on this site, South Canaan has the 5th largest share of homes built before 1980: 53%, against a county range of 29% to 80%.
ZIP codes: 18472
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| South Canaan | 1978 | 53% | 80% | 1% | 9 |
| Lake Township, Wayne County | 1985 | 32% | 84% | 0% | 7 |
| Canaan | 1989 | 40% | 75% | 0% | 11 |
| Waymart | 1970 | 65% | 53% | 2% | 11 |
| Cherry Ridge | 1978 | 56% | 78% | 1% | 9 |
| Carbondale Township | 1979 | 52% | 71% | 0% | 15 |
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.
Within 10 miles of South Canaan, hail of an inch or more was reported on 9 days between 2006 and 2025, the biggest stones 1.75 in on June 9, 2011. The most recent was July 13, 2023.
Federal major-disaster declarations for storms in Wayne County since 2006: 5, most recently DR-4815, Tropical Storm Debby, declared September 2024. (OpenFEMA.)
A report says hail fell near South Canaan, not that it damaged a 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; 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 | 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; 20% here predate 1940 | Never a base for a new layer (R908.3.1.1); heavy |
| Flat roof: EPDM or TPO | 15 years | Porches, additions, low-slope rears | Where the roof meets a wall or parapet |
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 South Canaan, and search it.
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)). Whether South Canaan wants a permit is in its own ordinance; ask the township 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). With 53% of South Canaan’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 South Canaan was built in 1978, 53% of homes were built before 1980, 80% are owner-occupied.
Hail of 1 inch or larger was reported on 9 days within 10 miles of South Canaan 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 South Canaan, 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.