The short answer by state
| State | Permit for a new roof on a one- or two-family house |
|---|---|
| New Jersey | Not needed on a detached house; needed on attached houses and for structural work |
| Pennsylvania | Up to the municipality's ordinance |
| Massachusetts | Expected: roofing is not on the code's exempt list |
| Connecticut | Needed once the work passes 25 percent of the roof in a calendar year |
| Rhode Island | Expected: roofing is not on the code's exempt list |
| Florida | Needed: the code exempts no building work |
New Jersey: no permit for a detached house
Ordinary maintenance to structures may be made without filing a permit application with or giving notice to the construction official.
Among the items the rule lists as ordinary maintenance:
The repair or replacement of existing roof covering on detached one- and two-family dwellings.
Ordinary maintenance does not include "the removal or cutting of any structural beam or bearing support" or "any work affecting structural or fire safety" ((b)2, (b)4). The exemption names detached houses, so twins, rowhouses and townhouses are outside it. New Jersey.
Pennsylvania: the municipality decides
Pennsylvania's Uniform Construction Code does not apply to "alterations to residential buildings which do not make structural changes" (34 Pa. Code § 403.1(b)(8)). Whether a reroof needs a permit is set by each municipality's ordinance; call its code office.
Philadelphia requires one: roof covering replacement is on the City's list of EZ permits, which need no plans. The fee for "Roof Covering (replacement only)" on a one- or two-family dwelling is $69 (L&I fee summary, Rev 2.2026). After the job the contractor files form TP_019_F, the Roof Replacement Certification. Pennsylvania.
Massachusetts: expect a permit
Roofing is not on the list of work the Massachusetts residential code exempts from a permit (780 CMR 51.00, R105.2), and the permit application for home improvement work carries the contractor's HIC registration number (R105.3). The town building department issues it.
Boston uses a short-form permit for roof work with no structural change. Its fee is "$20, plus $10 per $1,000 of estimated cost." A homeowner may file it only for a one- or two-unit house they live in; for one floor of a triple-decker, only a contractor can. Massachusetts.
Connecticut: the 25 percent line
Repairs that are limited to 25 percent of roof covering and building siding within one calendar year.
That is the only roof work Connecticut lets go without a permit. A full replacement is past it. Connecticut.
Rhode Island: expect a permit
SBC-2's list of permit-exempt work names replacement window sashes but not roofing (R105.2).
Providence, in its permit FAQ:
For minor repairs e.g. re-roof, new siding, etc. a permit can often be applied for and issued within 5 business days.
The same FAQ says the applicant is a contractor or the owner of a single-family home the owner lives in. Rhode Island.
Florida: a permit, and in Broward the owner's notification
The Florida Building Code's list of work exempt from a permit has no building items at all (FBC Building § 105.2). In the High-Velocity Hurricane Zone (Broward County), "it is the responsibility of the roofing contractor to provide the owner with the required roofing permit" (§ 1524.1), and the contractor goes through a required owner's notification with you, which you initial. Florida.
Historic districts
In a local historic district, the district commission's approval usually comes before the building permit. Ask the town whether your house is in one before choosing a material.
Finding past permits
Boston and Philadelphia publish their permits as open data. In New Jersey, a detached house reroofed under the exemption leaves no permit record at all.
Questions
Do I need a permit to replace my roof?
It depends on the state. Florida requires one; Massachusetts and Rhode Island expect one because roofing is not on their exempt lists; Connecticut requires one once the work passes 25 percent of the roof in a calendar year; Pennsylvania leaves it to each municipality; and New Jersey exempts detached one- and two-family houses.
Do I need a roofing permit in New Jersey?
Not for a detached one- or two-family house, where replacing the existing roof covering counts as ordinary maintenance (N.J.A.C. 5:23-2.7). Twins, rowhouses and townhouses are outside the exemption, and so is work affecting structural or fire safety.
How much is a roof permit in Philadelphia?
Roof covering replacement on a one- or two-family dwelling is an EZ permit, which needs no plans, and the fee is $69. After the job the contractor files form TP_019_F, the Roof Replacement Certification.
How much is a roof permit in Boston?
Boston’s short-form permit for roof work with no structural change costs $20 plus $10 per $1,000 of estimated cost. A homeowner may file it only for a one- or two-unit house they live in; otherwise a contractor files.