Permitting Authorities / Township of Ewing - Construction Office (Code Enforcement)
Do you need a permit to replace a roof in Township of Ewing, NJ?
Adopted code
Township of Ewing - Construction Office (Code Enforcement)
Yes, a permit is required to replace a roof in Township of Ewing, NJ, issued by Township of Ewing - Construction Office (Code Enforcement). Ewing Township's Construction Office states a permit requirement for roofing that the state rule does not make for a detached one- or two-family house. Its Code Enforcement page says "Regular permits cover work such as construction of new buildings, additions, renovations involving more than 25% of existing roofing or siding, decks, pools and storage sheds of 200ft2 or more." It also says "Emergency Work can start immediately once our office has been notified," that the owner then has 72 hours to submit the permit requests, and that "Valid emergencies include roof leaks." The state rule, N.J.A.C. 5:23-2.7(c), lists "The repair or replacement of existing roof covering on detached one- and two-family dwellings" among items that "are ordinary maintenance and shall be treated as such by every enforcing agency," and says "No permit for, inspections of, or notice to the enforcing agency of ordinary maintenance shall be required." The State Uniform Construction Code Act, N.J.S.A. 52:27D-123.1, says "Any law or regulation to the contrary notwithstanding," the "alteration, renovation, rehabilitation, repair, maintenance, removal, or demolition of all buildings or structures already erected shall be regulated pursuant to the 'State Uniform Construction Code Act.'" The same office also posts statements that follow the state rule: its permit-filing guide says "Ordinary Maintenance does NOT require a construction permit" and lists "Roof or siding covering materials (not to include any sheathing replacement)" among its examples, and its Permit Application Information folder posts a 2018 print of the state's administration rules under the title "Ordinary Maintenance, N.J.A.C. 5:23-2.7 (no permit)." This record does not decide whether the page's demand is lawful under those provisions. In practice, a roofer should expect Ewing's Construction Office to ask for a permit for a reroof that replaces more than a quarter of the existing roofing, as its page states; its homeowner guidance (dated February 10, 2026) says "If you are unsure whether your project requires a permit, please call our office for confirmation." Reroofing a townhouse or other attached dwelling, or any other building, needs a permit under the state rule in any case. The office is at 1666 Pennington Road (enter at the rear of the building), open Monday to Friday, 8:30 a.m. to 4 p.m., phone 609-883-2900. Application status and inspection requests go through the Township's SDL Portal, which needs an account. The homeowner guidance says "Your contractor must submit all permit applications" and "Homeowners are not required to sign permit forms.".
Roof code checklist: Township of Ewing, NJ
Each row comes from the sourced record on this page; full wording is in the table below. "Not published" means no official source for that item was found when the record was last verified.
Jurisdiction
Township of Ewing, New Jersey
Address
1666 Pennington Road (enter at the rear of the building), Ewing, NJ 08618
Contact
- url: https://www.ewingnj.org/departments/construction
- phone: 609-883-2900
Roofing permit required
Required
Contractor registration required
Required
Permit process note
Ewing Township's Construction Office states a permit requirement for roofing that the state rule does not make for a detached one- or two-family house. Its Code Enforcement page says "Regular permits cover work such as construction of new buildings, additions, renovations involving more than 25% of existing roofing or siding, decks, pools and storage sheds of 200ft2 or more." It also says "Emergency Work can start immediately once our office has been notified," that the owner then has 72 hours to submit the permit requests, and that "Valid emergencies include roof leaks." The state rule, N.J.A.C. 5:23-2.7(c), lists "The repair or replacement of existing roof covering on detached one- and two-family dwellings" among items that "are ordinary maintenance and shall be treated as such by every enforcing agency," and says "No permit for, inspections of, or notice to the enforcing agency of ordinary maintenance shall be required." The State Uniform Construction Code Act, N.J.S.A. 52:27D-123.1, says "Any law or regulation to the contrary notwithstanding," the "alteration, renovation, rehabilitation, repair, maintenance, removal, or demolition of all buildings or structures already erected shall be regulated pursuant to the 'State Uniform Construction Code Act.'" The same office also posts statements that follow the state rule: its permit-filing guide says "Ordinary Maintenance does NOT require a construction permit" and lists "Roof or siding covering materials (not to include any sheathing replacement)" among its examples, and its Permit Application Information folder posts a 2018 print of the state's administration rules under the title "Ordinary Maintenance, N.J.A.C. 5:23-2.7 (no permit)." This record does not decide whether the page's demand is lawful under those provisions. In practice, a roofer should expect Ewing's Construction Office to ask for a permit for a reroof that replaces more than a quarter of the existing roofing, as its page states; its homeowner guidance (dated February 10, 2026) says "If you are unsure whether your project requires a permit, please call our office for confirmation." Reroofing a townhouse or other attached dwelling, or any other building, needs a permit under the state rule in any case. The office is at 1666 Pennington Road (enter at the rear of the building), open Monday to Friday, 8:30 a.m. to 4 p.m., phone 609-883-2900. Application status and inspection requests go through the Township's SDL Portal, which needs an account. The homeowner guidance says "Your contractor must submit all permit applications" and "Homeowners are not required to sign permit forms."
Adopted code
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, Ewing Township's Code Enforcement page says the Construction Office reviews applications and plans "in accordance with the Uniform Construction Code and its adoption of various codes related to building, electrical, elevator, fire, HVAC and plumbing" and names no code edition.
Mid-roof inspection
Not required — No mid-roof inspection under state law. Reroofing a detached one- or two-family house is ordinary maintenance, and N.J.A.C. 5:23-2.7(c) says "No permit for, inspections of, or notice to the enforcing agency of ordinary maintenance shall be required." Where a reroof does need a permit, N.J.A.C. 5:23-2.18(b)1 says "Inspections of one- and two-family dwellings for which construction must cease until the inspection is made shall be limited to the following": footing trenches, foundations, utility services and a mid-point inspection, whose building item is "All structural framing, connections, wall and roof sheathing, and insulation." The list names no roof-covering or underlayment stage, and the rule does not say whether its sheathing item reaches a permitted reroof that replaces sheathing. Any further inspection a municipality requires "shall be of the type and nature that construction may continue without interruption" (5:23-2.18(b)3). Everything above is New Jersey state law, the same in every municipality. Locally, Ewing Township's homeowner guidance says to "Call the office to schedule all required inspections" and that "Any work that will be concealed must receive a rough inspection before being covered"; it names no roof-covering inspection. Inspections are requested through the Township's SDL Portal.
Impact-resistant roofing
Not required — No impact-resistant roofing requirement under state law. The New Jersey Uniform Construction Code rules that reach a house reroof (the administrative rules in N.J.A.C. 5:23-1 and 5:23-2, the State's amendments to the 2024 International Residential Code at 5:23-3.21, and the Rehabilitation Subcode at 5:23-6) contain no UL 2218, Class 4 or hail-impact requirement for roof coverings. A municipality cannot add one: N.J.S.A. 52:27D-123.1 says "Any law or regulation to the contrary notwithstanding," the "alteration, renovation, rehabilitation, repair, maintenance, removal, or demolition of all buildings or structures already erected shall be regulated pursuant to the 'State Uniform Construction Code Act,'" and under 52:27D-139 local construction regulations were "deemed repealed and superseded" once the state code was promulgated. An owner may still choose an impact-rated roof covering. Everything above is New Jersey state law, the same in every municipality. Ewing Township's Construction Office pages state nothing further on roofing.
Repair permit threshold
Ewing Township's Code Enforcement page (https://www.ewingnj.org/departments/construction) says "Regular Work Permits are required before work begins. Regular permits cover work such as construction of new buildings, additions, renovations involving more than 25% of existing roofing or siding, decks, pools and storage sheds of 200ft2 or more." The same office's permit-filing guide lists "Roof or siding covering materials (not to include any sheathing replacement)" among examples of ordinary maintenance. The state rule below makes no such demand for a detached one- or two-family house, and this record does not decide whether the page's demand is lawful under it; in practice, expect the office to treat a reroof of more than 25% of the existing roofing as permit work, as its page states. Under state law: No permit and no size limit for reroofing a detached one- or two-family house; a permit for every other building. N.J.A.C. 5:23-2.7(c) lists items that "are ordinary maintenance and shall be treated as such by every enforcing agency" and says "No permit for, inspections of, or notice to the enforcing agency of ordinary maintenance shall be required." Item 1.x is "The repair or replacement of existing roof covering on detached one- and two-family dwellings," with no square-footage or percentage cap. N.J.A.C. 5:23-2.14(b)1 carries this into the permit rule: "Ordinary maintenance as defined in N.J.A.C. 5:23-2.7 shall not require a permit or notice to the enforcing agency." Two limits apply. First, the item covers only detached one- and two-family dwellings. Reroofing a townhouse or other attached dwelling, or any other building, falls under the general permit rule, N.J.A.C. 5:23-2.14(a): "It shall be unlawful to construct, enlarge, repair, renovate, alter, reconstruct or demolish a structure ... without first filing an application with the construction official." Some of that work may be "minor work" under N.J.A.C. 5:23-2.17A, which still needs a permit, but "work may proceed, upon notice to the enforcing agency, before the permit is issued" (5:23-2.14(b)2). The fee is municipal: "The municipality, in accordance with this chapter, shall establish by ordinance enforcing agency fees" (N.J.A.C. 5:23-2.25; fee standards at 5:23-4.18). Second, ordinary maintenance does not include "Any work affecting structural or fire safety" (5:23-2.7(b)4), so roof work that reaches rafters, trusses or other structure needs a permit even on a detached house. The rule does not say whether replacing roof sheathing alone is such work. Everything after "Under state law:" is New Jersey state law, the same in every municipality.
Roof layer limit / recover
Two layers maximum, by state rule. Roof work on an existing building is held to the Rehabilitation Subcode (N.J.A.C. 5:23-2.4(a)), whose repair section, N.J.A.C. 5:23-6.4(e)7, reads: "Existing roof covering shall be removed before installing new roof covering when any of the following conditions occur: i. The existing roof or roof covering is water soaked or has deteriorated to the point that the existing roof or roof covering is not adequate as a base for additional roofing; ii. The existing roof covering is wood shake, slate, clay, cement or asbestos-cement tile; or iii. The existing roof has two or more applications of any type of roof covering." So one existing layer of asphalt shingles may be covered once; a roof that already has two layers, a wet or deteriorated roof, or a wood shake, slate, clay, cement or asbestos-cement tile roof must be torn off first. The answer is the same if a reroof is treated as renovation rather than repair: for work other than repair, N.J.A.C. 5:23-6.8(h)7 applies "All of Chapter 9 entitled 'Roof Assemblies', except Section R907" of the 2024 International Residential Code, and its reroofing section, R908.4, Exceptions, bars a recover "Where the existing roof has two or more applications of any type of roof covering." New Jersey's Chapter 9 amendments at N.J.A.C. 5:23-3.21(c)8 change only R903.4.1 and R905.1.2 and leave R908 as published. Everything above is New Jersey state law, the same in every municipality. Ewing Township's Construction Office pages state nothing further on roofing.
Sales & use tax
6.625% New Jersey Sales Tax; whether the roofing bill is taxed depends on the job. The Division of Taxation's guide Contractors and New Jersey Taxes (S&U-3, Rev. 5/25) refers to "New Jersey's 6.625% Sales Tax rate." A new roof is an exempt capital improvement: "New roof" is on the guide's list of "Exempt capital improvements," and "If the work results in an exempt capital improvement to real property, the contractor does not charge Sales Tax on the bill"; the owner gives the contractor a Certificate of Exempt Capital Improvement (Form ST-8). The roofer still pays tax on materials: "The contractor pays the Sales Tax on the cost of materials and supplies at the time of purchase." A repair is taxable. The guide lists "Fixing a leaky roof" among repairs and says "replacing a few loose bath tiles or a portion of a leaky roof is a repair to the existing real property. However, replacing all of the tiles or the entire roof with upgraded or improved materials would be an exempt capital improvement." On a taxable job the only deduction is a separately stated cost of materials, and "If the contractor does not itemize the materials and the labor for a taxable job, the entire receipt is subject to tax." Work for an exempt organization, a government agency or a qualified business in an Urban Enterprise Zone follows separate exemption rules. Everything above is New Jersey state law, the same in every municipality. Ewing Township's Construction Office pages state nothing further on sales tax.
More roof permit pages in New Jersey
Related guides
The Construction Office of the Township of Ewing, in Mercer County, part of the Township's Code Enforcement Office at 1666 Pennington Road, reviews permit applications and plans and inspects residential, commercial and industrial construction. New Jersey's Uniform Construction Code governs the work; the Township does not adopt a building code of its own.
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Roofing questions: Township of Ewing, NJ
Do you need a permit to replace a roof in Township of Ewing, NJ?
Yes, a permit is required to replace a roof in Township of Ewing, NJ. Ewing Township's Code Enforcement page (https://www.ewingnj.org/departments/construction) says "Regular Work Permits are required before work begins. Regular permits cover work such as construction of new buildings, additions, renovations involving more than 25% of existing roofing or siding, decks, pools and storage sheds of 200ft2 or more." The same office's permit-filing guide lists "Roof or siding covering materials (not to include any sheathing replacement)" among examples of ordinary maintenance. The state rule below makes no such demand for a detached one- or two-family house, and this record does not decide whether the page's demand is lawful under it; in practice, expect the office to treat a reroof of more than 25% of the existing roofing as permit work, as its page states. Under state law: No permit and no size limit for reroofing a detached one- or two-family house; a permit for every other building. N.J.A.C. 5:23-2.7(c) lists items that "are ordinary maintenance and shall be treated as such by every enforcing agency" and says "No permit for, inspections of, or notice to the enforcing agency of ordinary maintenance shall be required." Item 1.x is "The repair or replacement of existing roof covering on detached one- and two-family dwellings," with no square-footage or percentage cap. N.J.A.C. 5:23-2.14(b)1 carries this into the permit rule: "Ordinary maintenance as defined in N.J.A.C. 5:23-2.7 shall not require a permit or notice to the enforcing agency." Two limits apply. First, the item covers only detached one- and two-family dwellings. Reroofing a townhouse or other attached dwelling, or any other building, falls under the general permit rule, N.J.A.C. 5:23-2.14(a): "It shall be unlawful to construct, enlarge, repair, renovate, alter, reconstruct or demolish a structure ... without first filing an application with the construction official." Some of that work may be "minor work" under N.J.A.C. 5:23-2.17A, which still needs a permit, but "work may proceed, upon notice to the enforcing agency, before the permit is issued" (5:23-2.14(b)2). The fee is municipal: "The municipality, in accordance with this chapter, shall establish by ordinance enforcing agency fees" (N.J.A.C. 5:23-2.25; fee standards at 5:23-4.18). Second, ordinary maintenance does not include "Any work affecting structural or fire safety" (5:23-2.7(b)4), so roof work that reaches rafters, trusses or other structure needs a permit even on a detached house. The rule does not say whether replacing roof sheathing alone is such work. Everything after "Under state law:" is New Jersey state law, the same in every municipality.
Can you roof over an existing roof in Township of Ewing, NJ?
Two layers maximum, by state rule. Roof work on an existing building is held to the Rehabilitation Subcode (N.J.A.C. 5:23-2.4(a)), whose repair section, N.J.A.C. 5:23-6.4(e)7, reads: "Existing roof covering shall be removed before installing new roof covering when any of the following conditions occur: i. The existing roof or roof covering is water soaked or has deteriorated to the point that the existing roof or roof covering is not adequate as a base for additional roofing; ii. The existing roof covering is wood shake, slate, clay, cement or asbestos-cement tile; or iii. The existing roof has two or more applications of any type of roof covering." So one existing layer of asphalt shingles may be covered once; a roof that already has two layers, a wet or deteriorated roof, or a wood shake, slate, clay, cement or asbestos-cement tile roof must be torn off first. The answer is the same if a reroof is treated as renovation rather than repair: for work other than repair, N.J.A.C. 5:23-6.8(h)7 applies "All of Chapter 9 entitled 'Roof Assemblies', except Section R907" of the 2024 International Residential Code, and its reroofing section, R908.4, Exceptions, bars a recover "Where the existing roof has two or more applications of any type of roof covering." New Jersey's Chapter 9 amendments at N.J.A.C. 5:23-3.21(c)8 change only R903.4.1 and R905.1.2 and leave R908 as published. Everything above is New Jersey state law, the same in every municipality. Ewing Township's Construction Office pages state nothing further on roofing.
Do roofing contractors need a license or registration in Township of Ewing, NJ?
Yes.
What building code does Township of Ewing, NJ use?
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, Ewing Township's Code Enforcement page says the Construction Office reviews applications and plans "in accordance with the Uniform Construction Code and its adoption of various codes related to building, electrical, elevator, fire, HVAC and plumbing" and names no code edition.
Is a mid-roof inspection required in Township of Ewing, NJ?
No. No mid-roof inspection under state law. Reroofing a detached one- or two-family house is ordinary maintenance, and N.J.A.C. 5:23-2.7(c) says "No permit for, inspections of, or notice to the enforcing agency of ordinary maintenance shall be required." Where a reroof does need a permit, N.J.A.C. 5:23-2.18(b)1 says "Inspections of one- and two-family dwellings for which construction must cease until the inspection is made shall be limited to the following": footing trenches, foundations, utility services and a mid-point inspection, whose building item is "All structural framing, connections, wall and roof sheathing, and insulation." The list names no roof-covering or underlayment stage, and the rule does not say whether its sheathing item reaches a permitted reroof that replaces sheathing. Any further inspection a municipality requires "shall be of the type and nature that construction may continue without interruption" (5:23-2.18(b)3). Everything above is New Jersey state law, the same in every municipality. Locally, Ewing Township's homeowner guidance says to "Call the office to schedule all required inspections" and that "Any work that will be concealed must receive a rough inspection before being covered"; it names no roof-covering inspection. Inspections are requested through the Township's SDL Portal.