Bryn Athyn has 398 homes, and half of them were standing by 1971. 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 borough code office in Bryn Athyn 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). 67% of Bryn Athyn’s homes were built before 1980, so count the layers before comparing quotes.
Ice barrier
The code requires an ice barrier where the local climate table (Table R301.2) says so, and each Pennsylvania municipality fills that table in. The contractor or the borough code office in Bryn Athyn will know.
Rules as read on October 24, 2026. The state’s code edition and the rest of its rules: roof replacement in Pennsylvania.
Of 359 occupied homes in Bryn Athyn, 242 (67%) are owner-occupied. By year built, 24% before 1940, 38% before 1960, 67% before 1980; 6% went up in 2000 or later. (ACS 2020–2024.)
By building type: 70% detached houses, 3% attached single-family houses (rowhouses, twins and townhouses).
Of the 61 Montgomery County municipalities on this site, Bryn Athyn has the 24th largest share of homes built before 1980: 67%, against a county range of 17% to 98%.
ZIP codes: 19009
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Bryn Athyn | 1971 | 67% | 67% | 3% | 10 |
| Lower Moreland | 1967 | 73% | 87% | 2% | 11 |
| Upper Moreland | 1962 | 82% | 58% | 6% | 12 |
| Upper Southampton | 1966 | 76% | 89% | 9% | 9 |
| Abington | 1956 | 87% | 77% | 8% | 10 |
| Hatboro | 1957 | 80% | 59% | 19% | 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.
NOAA’s storm reports show 10 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Bryn Athyn, topping out at 1.75 in on July 6, 2020. The most recent was May 3, 2025.
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 Bryn Athyn, 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; 70% 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; 24% here predate 1940 | Can’t be roofed over; check the framing for the weight |
| Flat roof: EPDM or TPO | 15 years | Porches, additions, low-slope rears | Where the roof meets a wall or parapet |
Pennsylvania’s home improvement law (HICPA § 3, § 6) requires registration with the Attorney General from $5,000 a year of such work and puts the number on every estimate; ask for it in Bryn Athyn and look it up.
The price side is in what a new roof costs in Pennsylvania; the paperwork side in checking a roofing contractor.
Ask Bryn Athyn first. Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. So the borough code office in Bryn Athyn 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). 67% of Bryn Athyn’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 Bryn Athyn was built in 1971, 67% of homes were built before 1980, 67% are owner-occupied.
Hail of 1 inch or larger was reported on 10 days within 10 miles of Bryn Athyn from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
Pennsylvania’s home improvement law (HICPA § 3, § 6) requires registration with the Attorney General from $5,000 a year of such work and puts the number on every estimate; ask for it in Bryn Athyn and look it up.
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.