Roofing in Mendham Township, New Jersey

Not required

Required

The 2024 International Residential Code, New Jersey edition, adopted by the State, with the Rehabilitation Subcode for work on existing buildings. New Jersey has one construction code, the Uniform Construction Code (N.J.A.C. 5:23), which every municipality enforces; municipalities do not adopt building codes of their own (N.J.S.A. 52:27D-123.1 and 52:27D-139). N.J.A.C. 5:23-3.21(a)1 adopts the International Code Council's "2024 International Residential Code known as the IRC/2024 as the one- and two-family dwelling subcode in New Jersey subject to the modifications stated at (c) below," and 3.21(b) applies it to "detached one- and two-family dwellings and townhouses not more than three stories above grade plane in height." The section was rewritten by R.2026 d.086, "effective August 17, 2026," in the Department of Community Affairs' print of the rules "adopted and published through the New Jersey Register, Vol. 58 No. 16," and the Department's Current Construction Codes page lists the "International Residential Code/2024, NJ ed" with an adoption date of Aug 17, 2026. Other buildings fall under the building subcode, the International Building Code/2024, NJ edition (N.J.A.C. 5:23-3.14). Roof work on an existing building is held to the Rehabilitation Subcode: "Existing structures, when repaired, renovated, altered or reconstructed, shall conform to the requirements of N.J.A.C. 5:23-6, Rehabilitation Subcode" (N.J.A.C. 5:23-2.4(a)). A six-month grace period follows the adoption. N.J.A.C. 5:23-1.6(a): "For a period of six months following the operative date of a subcode revision, applicants may submit a complete permit application, including all prior approvals, to be reviewed under the code in force immediately preceding the subcode revision." The rule history gives R.2026 d.086 no date other than its effective date, so on that reading the window runs from August 17, 2026 until about February 17, 2027: a complete application filed inside it may be reviewed under either the prior edition or the 2024 edition, at the applicant's choice, and one filed after it closes is reviewed under the 2024 edition. Everything above is New Jersey state law, the same in every municipality. Locally, the Mendham Township Construction Department page says "The Construction Department administers and enforces the New Jersey Uniform Construction Code" and names no code edition. Chapter 127 of the Township Code, "Construction Codes, Uniform," establishes the enforcing agency "to be known as the Township Building Department" and adopts no technical code of its own.

No permit is needed under state law to reroof a detached one- or two-family house; a townhouse, other attached dwelling or any other building needs one from the Mendham Township Construction Department, 2 West Main Street, Brookside (mailing address PO Box 520, Brookside, NJ 07926), phone 973-543-4555 ext. 230, fax 973-543-6630. The Township lists office hours of "Monday - Friday 8:30 A.M. - 4:00 P.M." and the department's technical assistant keeps the same hours. The "Before You Begin a Project" page says to "Obtain a Construction Permit Application Package from the Building/Construction Office in Town Hall" and "To schedule inspections, please call (973) 543-4555 ext.. 226," with "A minimum of 24 hours" notice. The department's FAQ says "a roofing permit will take a couple of days" to review. Where a roof permit is required, the Township fee ordinance (Code section 160-7) has no roofing line; its building subcode fee "For renovations, alterations, repairs and minor construction work" is "$28 per $1,000 of estimated cost of work, provided that the minimum fee shall be $65," and plan review is "20% of the amount to be charged for the construction permit."