Permit
Ask Lewis Township 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 Lewis Township is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
Roof Replacement in Lewis Township, Northumberland County, PA
The median home in Lewis Township was built in 1976; there are 763 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 Lewis Township
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 Lewis Township’s homes were built before 1980, ask what is under the newest layer.
Ice barrier
Lewis Township’s climate table decides
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). The contractor or the township code office in Lewis Township will know.
Rules as read on October 24, 2026. The state’s code edition and the rest of its rules: roof replacement in Pennsylvania.
Homes and roofs in Lewis Township
90% of the occupied homes in Lewis Township are lived in by their owners: 651 households, the people this line is for. By year built, 24% before 1940, 34% before 1960, 60% before 1980; 17% went up in 2000 or later. (ACS 2020–2024.)
By building type: 92% detached houses, 6% manufactured homes.
Of the 23 Northumberland County municipalities on this site, Lewis Township has the 17th largest share of homes built before 1980: 60%, against a county range of 51% to 97%.
ZIP codes: 17772 · 17777
Lewis Township and the towns around it
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Lewis Township, Northumberland County | 1976 | 60% | 90% | 2% | 12 |
| Delaware Township, Northumberland County | 1979 | 52% | 88% | 1% | 10 |
| Limestone Township, Montour County | 1985 | 43% | 77% | 1% | 10 |
| Anthony | 1977 | 55% | 90% | 1% | 8 |
| Watsontown | 1952 | 87% | 54% | 11% | 9 |
| Muncy Creek | 1975 | 62% | 78% | 1% | 10 |
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 Lewis Township
Within 10 miles of Lewis Township, hail of an inch or more was reported on 12 days between 2006 and 2025, the biggest stones 1.75 in on July 18, 2016. The most recent was June 22, 2024.
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 Lewis Township, not that it damaged a roof. When wind or hail damage means a new roof.
What goes on the roof next
Lifespans come from HUD’s capital-needs table, not from a brochure. 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; 92% 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; 24% 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 |
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 Lewis 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.
Questions about a new roof in Lewis Township
Is a permit required for a new roof in Lewis Township, PA?
Ask Lewis Township 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 Lewis Township is the one to ask before work starts.
Is a roof-over allowed in Lewis Township, or is it 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 Lewis Township’s homes were built before 1980, ask what is under the newest layer.
How old are the houses in Lewis Township?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Lewis Township was built in 1976, 60% of homes were built before 1980, 90% are owner-occupied.
Does Lewis Township get hail that damages roofs?
Hail of 1 inch or larger was reported on 12 days within 10 miles of Lewis Township 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 Lewis Township?
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 Lewis Township and look it up.
What they will ask on the phone
- The street address in Lewis Township, 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
- 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 Lewis Township
- That you are the owner and the one who decides
The full list: before you call.