Half of the 3,819 homes in Cape May were built before 1973. 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.
The rules for a reroof in Cape May
Permit
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 (33% of Cape May’s homes) and any work that touches the structure fall outside the rule.
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. 69% of Cape May’s homes were built before 1980: ask how many layers yours has and whether the price is for a tear-off to the deck.
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 Cape May, ask whether the quote includes one anyway.
Rules as read on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in New Jersey.
Homes and roofs in Cape May
Of 1,438 occupied homes in Cape May, 928 (65%) are owner-occupied. By year built, 27% before 1940, 38% before 1960, 69% before 1980; 9% went up in 2000 or later. (ACS 2020–2024.)
By building type: 48% detached houses, 33% attached single-family houses (rowhouses, twins and townhouses), 10% buildings of two to four units.
With about one in three of homes attached, many roofs here meet a neighbor’s roof at a party wall. Say so on the call, and ask the contractor how the new roof will be tied in where it meets the house next door. New Jersey’s no-permit rule for reroofing covers detached houses only, so an attached house is outside it.
48% of the homes in Cape May are seasonal or occasional-use homes (ACS 2020–2024). If yours is one of them and you live elsewhere, the call still has to come from you as the owner.
Of the 13 Cape May County municipalities on this site, Cape May has the largest share of homes built before 1980: 69%, against a county range of 23% to 69%.
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.
Storm record around Cape May
NOAA’s storm reports show 3 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Cape May, topping out at 1.75 in on August 10, 2008. The most recent was June 7, 2012.
That is fewer than most places in the state on this site (median 11 days).
Remnants of Hurricane Ida (DR-4614, September 2021) is the latest of 11 federal storm declarations covering Cape May County since 2006. (OpenFEMA.)
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Cape May’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; 48% 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; 27% 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 (33% of homes here are attached)
Where the roof meets a wall or parapet
Checking a contractor in New Jersey
Any business offering home improvements in Cape May 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.
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 (33% of Cape May’s homes) and any work that touches the structure fall outside the rule.
How old are the houses in Cape May?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Cape May was built in 1973, 69% of homes were built before 1980, 65% are owner-occupied.
How often does hail hit Cape May?
Hail of 1 inch or larger was reported on 3 days within 10 miles of Cape May from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
How do I check a roofing contractor in Cape May?
Any business offering home improvements in Cape May 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.
What they will ask on the phone
Where the house is: the Cape May address or ZIP
Detached, twin or rowhouse, and the number of stories
What is on the roof now (asphalt shingles, metal, slate, tile, or a flat membrane) and roughly how old it is
How many layers are on it, if you know
That the job is a full replacement or a new roof, and your timing
Any historic-district or HOA rules on the house in Cape May