Hanover Township has 4,974 homes, and half of them were standing by 1991. Below: what the code asks of a replacement here, the permit, and the town’s own records.
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)). Whether Hanover Township 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
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 32% of Hanover Township’s homes were built before 1980; many have been reroofed before.
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 township code office or the contractor what Hanover Township’s says.
Rules as read on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Pennsylvania.
83% of the occupied homes in Hanover Township are lived in by their owners: 3,977 households, the people this line is for. By year built, 7% before 1960, 32% before 1980; 32% went up in 2000 or later. (ACS 2020–2024.)
By building type: 73% detached houses, 11% 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 34 Northampton County municipalities on this site, Hanover Township has the 32nd largest share of homes built before 1980: 32%, against a county range of 20% to 91%.
ZIP codes: 18017
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Hanover Township, Northampton County | 1991 | 32% | 83% | 11% | 23 |
| Hanover Township, Lehigh County | 1973 | 76% | 59% | 18% | 23 |
| East Allen | 1978 | 53% | 91% | 1% | 23 |
| Catasauqua | 1938 | 87% | 74% | 37% | 24 |
| Bethlehem City, Northampton County | 1957 | 79% | 48% | 30% | 23 |
| Bethlehem City, Lehigh County | 1957 | 79% | 48% | 30% | 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.
Since 2006 the National Weather Service has logged hail of 1 inch or larger on 23 separate days within 10 miles of Hanover Township; the largest was 2 in on August 17, 2007. The most recent was July 3, 2025.
That is more hail days than 98% of the places in the state on this site.
Remnants of Hurricane Ida (DR-4618, September 2021) is the latest of 6 federal storm declarations covering Northampton County since 2006. (OpenFEMA.)
A report says hail fell near Hanover Township, 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 Hanover Township’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; 73% 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 and historic houses | Never a base for a new layer (R908.3.1.1); heavy |
| Flat roof: EPDM or TPO | 15 years | Porches, additions, low-slope rears | Coating is not a replacement |
Before signing for a roof in Hanover Township, 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.
Ask Hanover Township first. Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). Whether Hanover Township wants a permit is in its own ordinance; ask the township code office before the old roof comes off.
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 32% of Hanover Township’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 Hanover Township was built in 1991, 32% of homes were built before 1980, 83% are owner-occupied.
Hail of 1 inch or larger was reported on 23 days within 10 miles of Hanover Township 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 Hanover Township, 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.