West Goshen has 9,637 homes, and half of them were standing by 1978. Below: what the code asks of a replacement here, the permit, and the town’s own records.
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 West Goshen
Permit
West Goshen’s ordinance decides
Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). Whether West Goshen wants a permit is in its own ordinance; ask the township code office before the old roof comes 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). 53% of West Goshen’s homes were built before 1980; many have been reroofed before.
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 West Goshen will know.
72% of the occupied homes in West Goshen are lived in by their owners: 6,750 households, the people this line is for. By year built, 8% before 1940, 23% before 1960, 53% before 1980; 23% went up in 2000 or later. (ACS 2020–2024.)
By building type: 64% detached houses, 10% attached single-family houses (rowhouses, twins and townhouses).
Of the 71 Chester County municipalities on this site, West Goshen has the 17th largest share of homes built before 1980: 53%, against a county range of 12% 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 West Goshen
Since 2006 the National Weather Service has logged hail of 1 inch or larger on 10 separate days within 10 miles of West Goshen; the largest was 2 in on August 10, 2008. The most recent was July 14, 2024.
Remnants of Hurricane Ida (DR-4618, September 2021) is the latest of 5 federal storm declarations covering Chester County since 2006. (OpenFEMA.)
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; 64% 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; 8% 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
Coating is not a replacement
Checking a contractor in Pennsylvania
Before signing for a roof in West Goshen, get the contractor’s PA registration number: the home improvement law requires registration with the Attorney General above $5,000 a year of such work, and the number on contracts and estimates (HICPA § 3, § 6).
Do I need a permit to replace a roof in West Goshen?
West Goshen’s ordinance decides. Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). Whether West Goshen wants a permit is in its own ordinance; ask the township code office before the old roof comes off.
Do the old shingles have to come off in West Goshen?
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). 53% of West Goshen’s homes were built before 1980; many have been reroofed before.
How old are the houses in West Goshen?
By the Census Bureau’s American Community Survey (2020–2024), the median home in West Goshen was built in 1978, 53% of homes were built before 1980, 72% are owner-occupied.
Does West Goshen get hail that damages roofs?
Hail of 1 inch or larger was reported on 10 days within 10 miles of West Goshen 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 West Goshen?
Before signing for a roof in West Goshen, get the contractor’s PA registration number: the home improvement law requires registration with the Attorney General above $5,000 a year of such work, and the number on contracts and estimates (HICPA § 3, § 6).
What they will ask on the phone
Where the house is: the West Goshen address or ZIP
One story or two (or more), detached or attached
What is on the roof now (asphalt shingles, metal, slate, tile, or a flat membrane) and roughly how old it is
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 West Goshen