Permit
Ask Ralpho first
The state code does not cover a reroof that changes no structure (34 Pa. Code § 403.1(b)(8)). So the township code office in Ralpho is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
Roof Replacement in Ralpho, PA
The median home in Ralpho was built in 1976; there are 1,840 of them. 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.
Call (833) 781-1806 Replacement and new roofs only · homeowners
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.
The rules for a reroof in Ralpho
Layers
Two layers means a tear-off
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 60% of Ralpho’s homes were built before 1980, ask what is under the newest layer.
Ice barrier
Ralpho’s climate table decides
IRC R905.1.2 calls for an ice barrier where Table R301.2 says so; in Pennsylvania the municipality completes that table. Ralpho’s answer is with the township code office.
Rules as read on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Pennsylvania.
Homes and roofs in Ralpho
Owners live in 1,577 of Ralpho’s occupied homes, or 92%. By year built, 12% before 1940, 27% before 1960, 60% before 1980; 20% went up in 2000 or later. (ACS 2020–2024.)
By building type: 93% detached houses.
Of the 23 Northumberland County municipalities on this site, Ralpho has the 16th largest share of homes built before 1980: 60%, against a county range of 51% to 97%.
ZIP codes: 17824
Ralpho and the towns around it
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Ralpho | 1976 | 60% | 92% | 3% | 7 |
| Shamokin | 1938 | 97% | 60% | 55% | 6 |
| Shamokin Township | 1979 | 51% | 95% | 2% | 4 |
| Rush Township, Northumberland County | 1974 | 62% | 90% | 1% | 5 |
| Coal | 1938 | 91% | 80% | 26% | 6 |
| Cleveland | 1973 | 63% | 95% | 0% | 6 |
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.
Storm record around Ralpho
NOAA’s storm reports show 7 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Ralpho, topping out at 2.5 in on May 22, 2014. The most recent was May 28, 2019.
That is fewer than most places in the state on this site (median 12 days).
Severe Storms, Flooding, and Mudslides (DR-1649, June 2006) is the latest of 1 federal storm declaration covering Northumberland County since 2006. (OpenFEMA.)
A report says hail fell near Ralpho, not that it damaged a roof. When wind or hail damage means a new roof.
What goes on the roof next
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Ralpho’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; 93% 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; 12% here predate 1940 | Can’t be roofed over; check the framing for the weight |
| Flat roof: EPDM or TPO | 15 years | Porches, additions, low-slope rears | Seams at walls and drainage |
Checking a contractor in Pennsylvania
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 Ralpho and look it up.
The price side is in what a new roof costs in Pennsylvania; the paperwork side in checking a roofing contractor.
Questions about a new roof in Ralpho
Do I need a permit to replace a roof in Ralpho?
Ask Ralpho first. The state code does not cover a reroof that changes no structure (34 Pa. Code § 403.1(b)(8)). So the township code office in Ralpho is the one to ask before work starts.
Do the old shingles have to come off in Ralpho?
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 60% of Ralpho’s homes were built before 1980, ask what is under the newest layer.
How old are the houses in Ralpho?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Ralpho was built in 1976, 60% of homes were built before 1980, 92% are owner-occupied.
How often does hail hit Ralpho?
Hail of 1 inch or larger was reported on 7 days within 10 miles of Ralpho from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
How do I check a roofing contractor in Ralpho?
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 Ralpho and look it up.
What they will ask on the phone
- The street address in Ralpho, or at least the ZIP code
- The number of stories, and whether the house stands alone
- What covers the roof now and about when it went on
- The number of layers, if anyone has counted
- Your timing for a complete replacement
- Any historic-district or HOA rules on the house in Ralpho
- That you own the home and decide on the roof
The full list: before you call.