Permit
Ask Gibson 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 Gibson requires.
Source: 34 Pa. Code § 403.1(b)
Roof Replacement in Gibson, PA
Half of the 646 homes in Gibson were built before 1981. 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 Gibson
Layers
One old layer can stay; two cannot
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 48% of Gibson’s homes were built before 1980, ask what is under the newest layer.
Ice barrier
Gibson’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. Ask the township code office or the contractor what Gibson’s says.
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 Gibson
Owners live in 374 of Gibson’s occupied homes, or 86%. By year built, 28% before 1940, 30% before 1960, 48% before 1980; 14% went up in 2000 or later. (ACS 2020–2024.)
By building type: 90% detached houses, 10% manufactured homes.
19% of the homes in Gibson are seasonal or occasional-use homes (ACS 2020–2024). If yours is one of them and you live elsewhere, the call still has to come from you as the owner.
Of the 18 Susquehanna County municipalities on this site, Gibson has the 17th largest share of homes built before 1980: 48%, against a county range of 44% to 87%.
ZIP codes: 18820 · 18825 · 18842
Gibson and the towns around it
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Gibson | 1981 | 48% | 86% | 0% | 10 |
| Harford | 1979 | 51% | 90% | 0% | 12 |
| Lenox | 1981 | 49% | 86% | 0% | 9 |
| New Milford | 1980 | 50% | 79% | 1% | 14 |
| Clifford | 1979 | 53% | 85% | 1% | 10 |
| Greenfield | 1976 | 59% | 88% | 0% | 9 |
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 Gibson
Within 10 miles of Gibson, hail of an inch or more was reported on 10 days between 2006 and 2025, the biggest stones 2.75 in on May 15, 2018. The most recent was April 30, 2024.
Federal major-disaster declarations for storms in Susquehanna County since 2006: 5, most recently DR-4815, Tropical Storm Debby, declared September 2024. (OpenFEMA.)
A report says hail fell near Gibson, not that it damaged a roof. When wind or hail damage means a new roof.
What goes on the roof next
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; 90% 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; 28% 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 | Seams at walls and drainage |
Checking a contractor in Pennsylvania
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 Gibson, and search it.
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 Gibson
Is a permit required for a new roof in Gibson, PA?
Ask Gibson 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 Gibson requires.
Do the old shingles have to come off in Gibson?
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 48% of Gibson’s homes were built before 1980, ask what is under the newest layer.
How old are the houses in Gibson?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Gibson was built in 1981, 48% of homes were built before 1980, 86% are owner-occupied.
Does Gibson get hail that damages roofs?
Hail of 1 inch or larger was reported on 10 days within 10 miles of Gibson 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 Gibson?
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 Gibson, and search it.
What they will ask on the phone
- Where the house is: the Gibson address or ZIP
- How many stories the house has, and whether it is detached or attached
- The roof you have today, shingle, metal, slate, tile or flat, and its rough age
- Whether there is one layer or more, if you know
- That you want a new roof or a full replacement, and when you want the work done
- Any historic-district or HOA rules on the house in Gibson
- That the house is yours and the decision is yours
The full list: before you call.