Half of the 2,826 homes in Bernardsville were built before 1960. 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
New Jersey treats a new covering on a detached one- or two-family house as ordinary maintenance: no permit, no notice (N.J.A.C. 5:23-2.7). In Bernardsville, 88% of homes are detached. An attached house, or work on rafters and beams, is not covered.
Source: N.J.A.C. 5:23-2.7
Layers
New Jersey deletes the IRC’s reroofing definitions (N.J.A.C. 5:23-3.21(c)2.xxii); its layer rule for existing houses is in the Rehabilitation Subcode, which this site has not read yet. 71% of Bernardsville’s homes were built before 1980: ask how many layers yours has and whether the price is for a tear-off to the deck.
Source: N.J.A.C. 5:23-3.21
Ice barrier
New Jersey requires the eave membrane only where January averages 25 °F or colder, which the state says is Sussex County (DCA Bulletin 07-3). In Bernardsville it is the installer’s and the manufacturer’s call; ask whether the quote includes it.
Source: N.J.A.C. 5:23-3.21; NJ DCA Bulletin 07-3
Rules as read on October 24, 2026. Everything else the state requires: roof replacement in New Jersey.
Of 2,689 occupied homes in Bernardsville, 2,543 (95%) are owner-occupied. By year built, 25% before 1940, 50% before 1960, 71% before 1980; 9% went up in 2000 or later. (ACS 2020–2024.)
By building type: 88% detached houses, 6% buildings of two to four units.
Of the 18 Somerset County municipalities on this site, Bernardsville has the 6th largest share of homes built before 1980: 71%, against a county range of 19% to 87%.
ZIP codes: 07924
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Bernardsville | 1960 | 71% | 95% | 2% | 10 |
| Mendham Borough | 1972 | 73% | 86% | 14% | 13 |
| Peapack and Gladstone | 1970 | 65% | 80% | 2% | 6 |
| Bernards | 1987 | 30% | 83% | 22% | 11 |
| Mendham Township | 1976 | 56% | 96% | 0% | 14 |
| Harding | 1967 | 66% | 90% | 11% | 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 Bernardsville, hail of an inch or more was reported on 10 days between 2006 and 2025, the biggest stones 1.25 in on September 8, 2023. The most recent was August 6, 2024.
Remnants of Hurricane Ida (DR-4614, September 2021) is the latest of 9 federal storm declarations covering Somerset County since 2006. (OpenFEMA.)
A report says hail fell near Bernardsville, not that it damaged a 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; 88% 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 houses; 25% 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 |
Ask a roofer working in Bernardsville for the New Jersey home improvement registration number, which the law requires on contracts and advertising (N.J.S.A. 56:8-138, 56:8-144), and look it up with the Division of Consumer Affairs.
The price side is in what a new roof costs in New Jersey; the paperwork side in checking a roofing contractor.
None for a detached one- or two-family house. New Jersey treats a new covering on a detached one- or two-family house as ordinary maintenance: no permit, no notice (N.J.A.C. 5:23-2.7). In Bernardsville, 88% of homes are detached. An attached house, or work on rafters and beams, is not covered.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Bernardsville was built in 1960, 71% of homes were built before 1980, 95% are owner-occupied.
Hail of 1 inch or larger was reported on 10 days within 10 miles of Bernardsville from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
Ask a roofer working in Bernardsville for the New Jersey home improvement registration number, which the law requires on contracts and advertising (N.J.S.A. 56:8-138, 56:8-144), and look it up with the Division of Consumer Affairs.
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.