Roof Replacement in Washington Township, Franklin County, PA
Washington Township has 6,371 homes, and half of them were standing by 1985. 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.
The rules for a reroof in Washington Township
Permit
Ask Washington Township first
Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. So the township code office in Washington Township is the one to ask before work starts.
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). 45% of Washington Township’s homes were built before 1980, so count the layers before comparing quotes.
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). Washington Township’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 Washington Township
80% of the occupied homes in Washington Township are lived in by their owners: 4,781 households, the people this line is for. By year built, 12% before 1940, 24% before 1960, 45% before 1980; 30% went up in 2000 or later. (ACS 2020–2024.)
By building type: 75% detached houses, 11% attached single-family houses (rowhouses, twins and townhouses), 7% manufactured homes.
30% 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 20 Franklin County municipalities on this site, Washington Township has the 17th largest share of homes built before 1980: 45%, against a county range of 38% to 80%.
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 Washington Township
Within 10 miles of Washington Township, hail of an inch or more was reported on 13 days between 2006 and 2025, the biggest stones 2 in on August 7, 2023.
Federal major-disaster declarations for storms in Franklin County since 2006: 4, most recently DR-4267, Severe Winter Storm and Snowstorm, declared March 2016. (OpenFEMA.)
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Washington 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; 75% 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; 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
Where the roof meets a wall or parapet
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 Washington Township, and search it.
Does a roof replacement in Washington Township need a permit?
Ask Washington Township first. Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. So the township code office in Washington Township is the one to ask before work starts.
Is a roof-over allowed in Washington Township, or is it a tear-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). 45% of Washington Township’s homes were built before 1980, so count the layers before comparing quotes.
How old are the houses in Washington Township?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Washington Township was built in 1985, 45% of homes were built before 1980, 80% are owner-occupied.
How many hail days has Washington Township had?
Hail of 1 inch or larger was reported on 13 days within 10 miles of Washington 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 Washington Township?
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 Washington Township, and search it.
What they will ask on the phone
Where the house is: the Washington Township 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 Washington Township