Half of the 14,536 homes in Warminster were built before 1969. 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.
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.
Permit
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 Warminster is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
Layers
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 66% of Warminster’s homes were built before 1980, ask what is under the newest layer.
Ice barrier
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 Warminster’s says.
Rules as read on October 24, 2026. The state’s code edition and the rest of its rules: roof replacement in Pennsylvania.
Owners live in 9,706 of Warminster’s occupied homes, or 69%. By year built, 24% before 1960, 66% before 1980; 22% went up in 2000 or later. (ACS 2020–2024.)
By building type: 54% detached houses, 14% attached single-family houses (rowhouses, twins and townhouses).
Of the 50 Bucks County municipalities on this site, Warminster has the 20th largest share of homes built before 1980: 66%, against a county range of 16% to 88%.
ZIP codes: 18974
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Warminster | 1969 | 66% | 69% | 14% | 10 |
| Hatboro | 1957 | 80% | 59% | 19% | 12 |
| Upper Moreland | 1962 | 82% | 58% | 6% | 12 |
| Warwick Township, Bucks County | 1993 | 16% | 96% | 24% | 11 |
| Upper Southampton | 1966 | 76% | 89% | 9% | 9 |
| Horsham | 1980 | 50% | 72% | 20% | 13 |
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.
Within 10 miles of Warminster, hail of an inch or more was reported on 10 days between 2006 and 2025, the biggest stones 1.25 in on July 21, 2021. The most recent was May 3, 2025.
Federal major-disaster declarations for storms in Bucks County since 2006: 5, most recently DR-4618, Remnants of Hurricane Ida, declared September 2021. (OpenFEMA.)
A report says hail fell near Warminster, not that it damaged a roof. When wind or hail damage means a new roof.
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Warminster’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; 54% 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 and historic houses | Sound slate can be reused (R908.5); broken slate cannot |
| Flat roof: EPDM or TPO | 15 years | Porches, additions, low-slope rears | Seams at walls and drainage |
Before signing for a roof in Warminster, 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).
The price side is in what a new roof costs in Pennsylvania; the paperwork side in checking a roofing contractor.
Warminster’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. So the township code office in Warminster is the one to ask before work starts.
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 66% of Warminster’s homes were built before 1980, ask what is under the newest layer.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Warminster was built in 1969, 66% of homes were built before 1980, 69% are owner-occupied.
Hail of 1 inch or larger was reported on 10 days within 10 miles of Warminster from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
Before signing for a roof in Warminster, 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).
The full list: before you call.
Checked October 24, 2026. Laws and code editions change; the date says when these were last read at the source.