The median home in Independence was built in 1986; there are 2,638 of them. What the code requires when that roof is replaced, and who signs off, is below.
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 N.J.A.C. 5:23-2.7 a reroof of a detached one- or two-family house goes ahead without a permit or a notice to the construction office. Attached houses (29% of Independence’s homes) and any work that touches the structure fall outside the rule.
Source: N.J.A.C. 5:23-2.7
Layers
Which layers may stay is a Rehabilitation Subcode question in New Jersey (the IRC definitions are deleted by N.J.A.C. 5:23-3.21), and this site has not read that subcode yet. With 39% of Independence’s homes were built before 1980, ask the contractor to count the layers before quoting.
Source: N.J.A.C. 5:23-3.21
Ice barrier
Only Sussex County meets New Jersey’s 25 °F January test for a required ice barrier (N.J.A.C. 5:23-3.21; DCA Bulletin 07-3). For Independence, ask whether the quote includes one anyway.
Source: N.J.A.C. 5:23-3.21; NJ DCA Bulletin 07-3
Checked against the code text on October 24, 2026. The state’s code edition and the rest of its rules: roof replacement in New Jersey.
83% of the occupied homes in Independence are lived in by their owners: 2,119 households, the people this line is for. Counting by decade, 18% before 1940, 24% before 1960, 39% before 1980 of the housing was in place, and 12% dates from 2000 on. (ACS 2020–2024.)
The housing is 52% detached houses, 29% attached single-family houses (rowhouses, twins and townhouses).
Of the 22 Warren County municipalities on this site, Independence has the 20th largest share of homes built before 1980: 39%, against a county range of 24% to 89%.
ZIP codes: 07838 · 07840 · 07880
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Independence | 1986 | 39% | 83% | 29% | 6 |
| Hackettstown | 1967 | 68% | 58% | 7% | 7 |
| Liberty | 1968 | 59% | 90% | 1% | 5 |
| Allamuchy | 1983 | 45% | 83% | 44% | 7 |
| Mansfield Township, Warren County | 1981 | 48% | 62% | 6% | 5 |
| Hope | 1972 | 62% | 88% | 2% | 4 |
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 6 separate days within 10 miles of Independence; the largest was 1.25 in on September 8, 2023.
That is fewer than most places in the state on this site (median 11 days).
At the county level, Independence shares Warren County’s record of 10 storm disaster declarations since 2006, the newest DR-4725 (Severe Storm and Flooding, August 2023). (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 | Simple roofs with long, unbroken slopes | A complete standing-seam system may go over the old roof (R908.3.1) |
| Slate | 75 years | Older houses; 18% 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 (29% of homes here are attached) | Seams at walls and drainage |
Any business offering home improvements in Independence must be registered with the New Jersey Division of Consumer Affairs, with the number on its contracts and ads (N.J.S.A. 56:8-138, 56:8-144); 47,473 registrations were active in October 2026.
Contracts, deposits and the right to cancel: checking a roofing contractor. What moves the price: new roof cost in New Jersey.
No permit for a detached house. Under N.J.A.C. 5:23-2.7 a reroof of a detached one- or two-family house goes ahead without a permit or a notice to the construction office. Attached houses (29% of Independence’s homes) and any work that touches the structure fall outside the rule.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Independence was built in 1986, 39% of homes were built before 1980, 83% are owner-occupied.
Hail of 1 inch or larger was reported on 6 days within 10 miles of Independence from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
Any business offering home improvements in Independence must be registered with the New Jersey Division of Consumer Affairs, with the number on its contracts and ads (N.J.S.A. 56:8-138, 56:8-144); 47,473 registrations were active in October 2026.
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.