Limerick has 8,611 homes, and half of them were standing by 1996. 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.
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 Limerick is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
Layers
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). 17% of Limerick’s homes were built before 1980, so count the layers before comparing quotes.
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 Limerick’s says.
Rules as read on October 24, 2026. Everything else the state requires: roof replacement in Pennsylvania.
83% of the occupied homes in Limerick are lived in by their owners: 6,885 households, the people this line is for. By year built, 7% before 1940, 11% before 1960, 17% before 1980; 37% went up in 2000 or later. (ACS 2020–2024.)
By building type: 56% detached houses, 25% attached single-family houses (rowhouses, twins and townhouses).
37% 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 61 Montgomery County municipalities on this site, Limerick has the smallest share of homes built before 1980: 17%, against a county range of 17% to 98%.
ZIP codes: 19468 · 19473
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Limerick | 1996 | 17% | 83% | 25% | 18 |
| Royersford | 1955 | 76% | 46% | 32% | 13 |
| Lower Pottsgrove | 1983 | 44% | 78% | 31% | 16 |
| Perkiomen | 1992 | 35% | 89% | 20% | 19 |
| Trappe | 1984 | 46% | 77% | 32% | 18 |
| Spring City | 1948 | 80% | 54% | 35% | 14 |
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.
NOAA’s storm reports show 18 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Limerick, topping out at 1.75 in on August 26, 2006. The most recent was July 8, 2025.
That is more hail days than 85% of the places in the state on this site.
Federal major-disaster declarations for storms in Montgomery County since 2006: 6, most recently DR-4618, Remnants of Hurricane Ida, declared September 2021. (OpenFEMA.)
A report says hail fell near Limerick, not that it damaged a roof. When wind or hail damage means a new roof.
Useful life is HUD’s planning figure, not a warranty. 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; 56% 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; 7% here predate 1940 | Sound slate can be reused (R908.5); broken slate cannot |
| Flat roof: EPDM or TPO | 15 years | Low-slope roofs and rear sections (25% of homes here are attached) | Where the roof meets a wall or parapet |
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 Limerick, and search it.
The price side is in what a new roof costs in Pennsylvania; the paperwork side in checking a roofing contractor.
Local ordinance, not the state. 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 Limerick 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). 17% of Limerick’s homes were built before 1980, so count the layers before comparing quotes.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Limerick was built in 1996, 17% of homes were built before 1980, 83% are owner-occupied.
Hail of 1 inch or larger was reported on 18 days within 10 miles of Limerick from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
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 Limerick, and search it.
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.