Valley Township has 837 homes, and half of them were standing by 1984. The rules below decide how much of the old roof has to come off and what goes under the new one.
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 Valley Township requires.
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). 43% of Valley Township’s homes were built before 1980, so count the layers before comparing quotes.
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). Valley Township’s answer is with the township code office.
Rules as read on October 24, 2026. The state’s code edition and the rest of its rules: roof replacement in Pennsylvania.
Of 833 occupied homes in Valley Township, 761 (91%) are owner-occupied. By year built, 9% before 1940, 17% before 1960, 43% before 1980; 22% went up in 2000 or later. (ACS 2020–2024.)
By building type: 94% detached houses, 5% manufactured homes.
Of the 8 Montour County municipalities on this site, Valley Township has the 7th largest share of homes built before 1980: 43%, against a county range of 36% to 72%.
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Valley Township, Montour County | 1984 | 43% | 91% | 1% | 4 |
| Derry Township, Montour County | 1976 | 61% | 83% | 4% | 4 |
| Danville | 1957 | 72% | 43% | 25% | 5 |
| Mahoning Township, Montour County | 1978 | 54% | 66% | 12% | 5 |
| Riverside | 1963 | 75% | 90% | 4% | 4 |
| Liberty Township, Montour County | 1991 | 36% | 87% | 1% | 8 |
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 4 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Valley Township, topping out at 2.5 in on May 22, 2014.
That is fewer than most places in the state on this site (median 12 days).
Federal major-disaster declarations for storms in Montour County since 2006: 2, most recently DR-4408, Severe Storms and Flooding, declared November 2018. (OpenFEMA.)
A report says hail fell near Valley 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 Valley 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; 94% 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; 9% here predate 1940 | Sound slate can be reused (R908.5); broken slate cannot |
| Flat roof: EPDM or TPO | 15 years | Porches, additions, low-slope rears | Seams at walls and drainage |
Pennsylvania’s home improvement law (HICPA § 3, § 6) requires registration with the Attorney General from $5,000 a year of such work and puts the number on every estimate; ask for it in Valley Township and look it up.
The price side is in what a new roof costs in Pennsylvania; the paperwork side in checking a roofing contractor.
Ask Valley Township first. 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 Valley Township requires.
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). 43% of Valley Township’s homes were built before 1980, so count the layers before comparing quotes.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Valley Township was built in 1984, 43% of homes were built before 1980, 91% are owner-occupied.
Hail of 1 inch or larger was reported on 4 days within 10 miles of Valley Township from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
Pennsylvania’s home improvement law (HICPA § 3, § 6) requires registration with the Attorney General from $5,000 a year of such work and puts the number on every estimate; ask for it in Valley Township and look it up.
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.