Roof Replacement in Tinicum Township, Delaware County, PA
Tinicum Township has 1,917 homes, and half of them were standing by 1956. 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 Tinicum Township
Permit
Tinicum Township’s ordinance decides
Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. The township code office can say what Tinicum Township requires.
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). 84% of Tinicum Township’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 Tinicum Township will know.
Checked against the code text on October 24, 2026. The state’s code edition and the rest of its rules: roof replacement in Pennsylvania.
Homes and roofs in Tinicum Township
66% of the occupied homes in Tinicum Township are lived in by their owners: 1,170 households, the people this line is for. Counting by decade, 17% before 1940, 66% before 1960, 84% before 1980 of the housing was in place, and 2% dates from 2000 on. (ACS 2020–2024.)
The housing is 44% detached houses, 32% attached single-family houses (rowhouses, twins and townhouses), 20% buildings of two to four units.
With about one in three of homes attached, many roofs here meet a neighbor’s roof at a party wall. Say so on the call, and ask the contractor how the new roof will be tied in where it meets the house next door.
Of the 48 Delaware County municipalities on this site, Tinicum Township has the 26th largest share of homes built before 1980: 84%, against a county range of 20% to 98%.
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.
Hail and storms near Tinicum Township
Since 2006 the National Weather Service has logged hail of 1 inch or larger on 19 separate days within 10 miles of Tinicum Township; the largest was 1.75 in on May 22, 2014. The most recent was April 4, 2025.
That is more hail days than 89% of the places in the state on this site.
At the county level, Tinicum Township shares Delaware County’s record of 3 storm disaster declarations since 2006, the newest DR-4618 (Remnants of Hurricane Ida, September 2021). (OpenFEMA.)
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Tinicum 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; 44% 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
A complete standing-seam system may go over the old roof (R908.3.1)
Slate
75 years
Older houses; 17% here predate 1940
Can’t be roofed over; check the framing for the weight
Flat roof: EPDM or TPO
15 years
Low-slope roofs and rear sections (32% of homes here are attached)
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 Tinicum Township, and search it.
Does a roof replacement in Tinicum Township need a permit?
Tinicum Township’s ordinance decides. Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. The township code office can say what Tinicum Township requires.
Is a roof-over allowed in Tinicum 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). 84% of Tinicum Township’s homes were built before 1980; many have been reroofed before.
When were most homes in Tinicum Township built?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Tinicum Township was built in 1956, 84% of homes were built before 1980, 66% are owner-occupied.
Does Tinicum Township get hail that damages roofs?
Hail of 1 inch or larger was reported on 19 days within 10 miles of Tinicum Township from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
What license or registration should a roofer in Tinicum Township have?
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 Tinicum Township, and search it.
What they will ask on the phone
Your address or ZIP code in Tinicum Township
Whether the house is detached, a twin or a rowhouse, and how many stories
What covers the roof now and about when it went on
How many layers are on it, if you know
Your timing for a complete replacement
Whether the house is in a historic district or an HOA