The Roofing Book

Permitting Authorities / Borough of Allendale - Construction Code Office

Do you need a permit to replace a roof in Borough of Allendale, NJ?

Adopted code

Borough of Allendale - Construction Code Office

No, Borough of Allendale, NJ does not require a permit for like-for-like roof replacement (Borough of Allendale - Construction Code Office). 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 in Allendale needs one from the Borough's Construction Code Office. The office's "Do I Need a Permit?" page lists "Roofs" under "Permits are not required for the following (single or two family)," but the same page also says "Minor work is a category of listed work for one and two family residential structures such as roofing, siding and water heater replacements that require a construction permit; however, the work may proceed after formal notification is made to the Borough." This record does not decide which statement the office applies to a given job; a roofer who is unsure can call the office at 201-818-4400, ext. 202. Where a roof permit is required, the Borough's fee ordinance, Section 100-3A(2)(b), prices it with "Renovations, alterations, decks, roofing, siding and repairs": "The fee shall be $25 per $1,000 of the estimated cost, with a minimum fee of $75." Section 100-3A(1)(b) charges no plan review fee for roofing and siding on detached one- or two-family houses and applies the same cost-based fee "For all other use groups." Under the Borough Code, "The public shall have the right to do business with the Enforcing Agency at one central permit office located in the Municipal Building." The Construction Code Office is open "Monday through Friday between 9:00am and 4:30pm." Inspections are scheduled through the Borough's GovPilot portal, building inspections run "Mon - Thurs: 9am - 12:30pm," and the office asks for "a week lead time for inspections." The Borough's permits and forms page says "Payment for most permits can be made conveniently online through the Pay Now button at the bottom of the selected form.".

Roof code checklist: Borough of Allendale, NJ

ItemAnswerCode citeSourceVerified
Permit to replace a roofNonjac_5_23_2.pdf2026-10-02
Repair permit thresholdPublishednjac_5_23_2.pdf2026-10-02
Layer limit / roof-overPublishednjac_5_23_6.pdf2026-10-02
Deck & sheathingNot published
Drip edgeNot published
Ice & water shieldNot published
Mid-roof inspectionNonjac_5_23_2.pdf2026-10-02
Impact-resistant (Class 4) roofingNo52_27D_119.pdf2026-10-02
Wind design criteriaNot published
Adopted codePublishedSec. 100-1njac_5_23_3.pdf2026-10-02
Contractor license / registrationYespub.njleg.gov2026-10-02
Sales & use taxPublishedsu3.pdf2026-10-02

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
Borough of Allendale, New Jersey
Jurisdiction type
city
Address
500 West Crescent Avenue (Municipal Building), Allendale, NJ 07401
Contact
  • url: https://www.allendalenj.gov/building-development/construction-and-zoning/
  • phone: 201-818-4400 ext. 202
Roofing permit required
Not required
Contractor registration required
Required
Registration details
  • state_level: New Jersey requires home improvement contractors to register with the Division of Consumer Affairs. The Contractors' Registration Act as enacted in 2004 (P.L.2004, c.16), C.56:8-138(a), reads: "No person shall offer to perform, or engage, or attempt to engage in the business of making or selling home improvements unless registered with the Division of Consumer Affairs in accordance with the provisions of this act." The Uniform Construction Code's permit rule, N.J.A.C. 5:23-2.15(b)9, reads: "If work involves a home improvement performed by a contractor, such contractor shall be registered pursuant to N.J.S.A. 56:8-136 et seq. The registration number of the contractor shall appear on the permit application."
Permit process note
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 in Allendale needs one from the Borough's Construction Code Office. The office's "Do I Need a Permit?" page lists "Roofs" under "Permits are not required for the following (single or two family)," but the same page also says "Minor work is a category of listed work for one and two family residential structures such as roofing, siding and water heater replacements that require a construction permit; however, the work may proceed after formal notification is made to the Borough." This record does not decide which statement the office applies to a given job; a roofer who is unsure can call the office at 201-818-4400, ext. 202. Where a roof permit is required, the Borough's fee ordinance, Section 100-3A(2)(b), prices it with "Renovations, alterations, decks, roofing, siding and repairs": "The fee shall be $25 per $1,000 of the estimated cost, with a minimum fee of $75." Section 100-3A(1)(b) charges no plan review fee for roofing and siding on detached one- or two-family houses and applies the same cost-based fee "For all other use groups." Under the Borough Code, "The public shall have the right to do business with the Enforcing Agency at one central permit office located in the Municipal Building." The Construction Code Office is open "Monday through Friday between 9:00am and 4:30pm." Inspections are scheduled through the Borough's GovPilot portal, building inspections run "Mon - Thurs: 9am - 12:30pm," and the office asks for "a week lead time for inspections." The Borough's permits and forms page says "Payment for most permits can be made conveniently online through the Pay Now button at the bottom of the selected form."
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, Chapter 100 of the Allendale Borough Code, Section 100-1, establishes the "State Uniform Construction Code Enforcing Agency of the Borough of Allendale," and the Construction Code Office's "Do I Need a Permit?" page says "The State of New Jersey establishes the rules for when construction permits are required (NJAC 5:23-2.14 Construction permits-when required)."
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. Allendale's Inspections page lists building inspections "Mon - Thurs: 9am - 12:30pm," asks for "a week lead time for inspections," and names no roof inspection stage.
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. The Allendale Construction Code Office pages state nothing further on roof covering ratings.
Repair permit threshold
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 above is New Jersey state law, the same in every municipality. Locally, the Construction Code Office's "Do I Need a Permit?" page says "Permits are not required for the following (single or two family)" and lists "Roofs" and "Siding" first; it does not repeat the state item's word "detached." The same page also says "Minor work is a category of listed work for one and two family residential structures such as roofing, siding and water heater replacements that require a construction permit; however, the work may proceed after formal notification is made to the Borough." The Borough's fee ordinance, Section 100-3A(1)(b), reads "Roofing and siding. For detached one- or two-family houses. No plan review fee is required. For all other use groups, § 100-3A(2)(b) shall apply." This record does not decide how these statements fit together; the office asks callers to "Contact the Department at 201-818-4400 x202 for additional information and permit guidance if you do not see your specific project listed."
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. The Allendale Construction Code Office pages and the Borough's building chapter, Chapter 100, state nothing further on roof layers.
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. The Allendale Construction Code Office pages state nothing further on sales tax.

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The Construction Code Office of the Borough of Allendale, in Bergen County, is the Borough's State Uniform Construction Code enforcing agency; it issues construction permits and inspects construction work from the Municipal Building at 500 West Crescent Avenue. Its permit guidance lists roofs among the jobs that need no permit on a single- or two-family house, and the Borough's fee ordinance prices roofing for other use groups. New Jersey's Uniform Construction Code governs the work; the Borough adopts no building code of its own.

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Sources

Roofing questions: Borough of Allendale, NJ

Do you need a permit to replace a roof in Borough of Allendale, NJ?

No, Borough of Allendale, NJ does not require a permit to replace a roof. 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 above is New Jersey state law, the same in every municipality. Locally, the Construction Code Office's "Do I Need a Permit?" page says "Permits are not required for the following (single or two family)" and lists "Roofs" and "Siding" first; it does not repeat the state item's word "detached." The same page also says "Minor work is a category of listed work for one and two family residential structures such as roofing, siding and water heater replacements that require a construction permit; however, the work may proceed after formal notification is made to the Borough." The Borough's fee ordinance, Section 100-3A(1)(b), reads "Roofing and siding. For detached one- or two-family houses. No plan review fee is required. For all other use groups, § 100-3A(2)(b) shall apply." This record does not decide how these statements fit together; the office asks callers to "Contact the Department at 201-818-4400 x202 for additional information and permit guidance if you do not see your specific project listed."

Can you roof over an existing roof in Borough of Allendale, 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. The Allendale Construction Code Office pages and the Borough's building chapter, Chapter 100, state nothing further on roof layers.

Do roofing contractors need a license or registration in Borough of Allendale, NJ?

Yes.

What building code does Borough of Allendale, 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, Chapter 100 of the Allendale Borough Code, Section 100-1, establishes the "State Uniform Construction Code Enforcing Agency of the Borough of Allendale," and the Construction Code Office's "Do I Need a Permit?" page says "The State of New Jersey establishes the rules for when construction permits are required (NJAC 5:23-2.14 Construction permits-when required)."

Is a mid-roof inspection required in Borough of Allendale, 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. Allendale's Inspections page lists building inspections "Mon - Thurs: 9am - 12:30pm," asks for "a week lead time for inspections," and names no roof inspection stage.