Permit
Ask Kenhorst first
Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. The borough code office can say what Kenhorst requires.
Source: 34 Pa. Code § 403.1(b)
Half of the 1,193 homes in Kenhorst were built before 1954. 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. The borough code office can say what Kenhorst requires.
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). 93% of Kenhorst’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. Ask the borough code office or the contractor what Kenhorst’s says.
Rules as read on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Pennsylvania.
Of 1,193 occupied homes in Kenhorst, 936 (79%) are owner-occupied. By year built, 28% before 1940, 59% before 1960, 93% before 1980; 2% went up in 2000 or later. (ACS 2020–2024.)
By building type: 75% detached houses, 18% attached single-family houses (rowhouses, twins and townhouses), 5% buildings of two to four units.
Of the 67 Berks County municipalities on this site, Kenhorst has the 3rd largest share of homes built before 1980: 93%, against a county range of 18% to 97%.
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Kenhorst | 1954 | 93% | 79% | 18% | 20 |
| Shillington | 1943 | 97% | 63% | 47% | 20 |
| West Reading | 1938 | 89% | 56% | 61% | 19 |
| Wyomissing | 1971 | 63% | 68% | 15% | 18 |
| Cumru | 1977 | 58% | 71% | 15% | 19 |
| Reading | 1938 | 90% | 41% | 52% | 22 |
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 20 separate days within 10 miles of Kenhorst; the largest was 2.5 in on May 22, 2014. The most recent was July 8, 2025.
That is more hail days than 93% of the places in the state on this site.
Severe Winter Storm and Snowstorm (DR-4267, March 2016) is the latest of 2 federal storm declarations covering Berks County since 2006. (OpenFEMA.)
A report says hail fell near Kenhorst, 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 Kenhorst’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; 75% 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 | Simple roofs with long, unbroken slopes | Standing seam that carries its own loads can skip the tear-off (R908.3.1) |
| Slate | 75 years | Older houses; 28% here predate 1940 | Never a base for a new layer (R908.3.1.1); heavy |
| Flat roof: EPDM or TPO | 15 years | Low-slope roofs and rear sections (18% of homes here are attached) | Coating is not a replacement |
Before signing for a roof in Kenhorst, 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.
Ask Kenhorst first. Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. The borough code office can say what Kenhorst requires.
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). 93% of Kenhorst’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 Kenhorst was built in 1954, 93% of homes were built before 1980, 79% are owner-occupied.
Hail of 1 inch or larger was reported on 20 days within 10 miles of Kenhorst 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 Kenhorst, 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.