Mount Holly Springs has 902 homes, and half of them were standing by 1955. What the code requires when that roof is replaced, and who signs off, is below.
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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
Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). So the borough code office in Mount Holly Springs 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). With 73% of Mount Holly Springs’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. The contractor or the borough code office in Mount Holly Springs will know.
Checked against the code text on October 24, 2026. Everything else the state requires: roof replacement in Pennsylvania.
56% of the occupied homes in Mount Holly Springs are lived in by their owners: 480 households, the people this line is for. Counting by decade, 33% before 1940, 58% before 1960, 73% before 1980 of the housing was in place, and 6% dates from 2000 on. (ACS 2020–2024.)
The housing is 52% detached houses, 19% attached single-family houses (rowhouses, twins and townhouses), 15% buildings of two to four units, 7% manufactured homes.
Older houses hide their history: ask the contractor to confirm the deck (board or sheet) and every layer above it before pricing, because slate or two layers mean a full tear-off.
Of the 31 Cumberland County municipalities on this site, Mount Holly Springs has the 9th largest share of homes built before 1980: 73%, against a county range of 24% to 93%.
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Mount Holly Springs | 1955 | 73% | 56% | 19% | 9 |
| South Middleton | 1986 | 40% | 81% | 12% | 10 |
| Dickinson | 1989 | 32% | 94% | 1% | 7 |
| Carlisle | 1953 | 78% | 49% | 27% | 5 |
| Franklin Township, York County | 1988 | 32% | 82% | 13% | 7 |
| Monroe Township, Cumberland County | 1979 | 53% | 93% | 4% | 12 |
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.
Since 2006 the National Weather Service has logged hail of 1 inch or larger on 9 separate days within 10 miles of Mount Holly Springs; the largest was 2 in on May 14, 2010. The most recent was August 3, 2024.
Cumberland County has had 2 federal major-disaster declarations for storms since 2006; the latest was DR-4267, Severe Winter Storm and Snowstorm (March 2016). (OpenFEMA.)
Storm reports are what observers logged, not a measure of damage to any roof. When wind or hail damage means a new roof.
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; 52% 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 | A complete standing-seam system may go over the old roof (R908.3.1) |
| Slate | 75 years | Older houses; 33% 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 (19% 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 Mount Holly Springs, and search it.
Contracts, deposits and the right to cancel: checking a roofing contractor. What moves the price: new roof cost in Pennsylvania.
Local ordinance, not the state. Pennsylvania’s code leaves residential alterations without structural change to local ordinance (34 Pa. Code § 403.1(b)(8)). So the borough code office in Mount Holly Springs 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). With 73% of Mount Holly Springs’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 Mount Holly Springs was built in 1955, 73% of homes were built before 1980, 56% are owner-occupied.
Hail of 1 inch or larger was reported on 9 days within 10 miles of Mount Holly Springs 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 Mount Holly Springs, 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.