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Permitting Authorities / Municipality of Norristown - Department of Buildings & Code Compliance

Do you need a permit to replace a roof in Municipality of Norristown, PA?

Adopted code

Municipality of Norristown - Department of Buildings & Code Compliance

Yes, a permit is required to replace a roof in Municipality of Norristown, PA, issued by Municipality of Norristown - Department of Buildings & Code Compliance. Section 132-5 of the Municipal Code says "Pursuant to and in accordance with State Act 92, Section 104(b)(5) and (6), the Municipality will require permits for residential alterations and repairs." Read October 6, 2026: the Department of Buildings & Code Compliance's Permit Application (last revised March 2026) lists "Roofing" among the types of work an applicant checks, carries a "Roofing Permit Section" asking for "Roofing Contractor Information" and the "Estimated Cost of Construction (Roofing Construction Only)," and says "PERMIT MUST BE APPROVED, ISSUED, AND POSTED ON THE JOB SITE PRIOR TO BEGINNING WORK!" Under state law, Act 45 says the Act "shall not apply to" "Alterations to residential buildings which do not make structural changes or changes to means of egress, except as might be required by ordinances in effect pursuant to section 303(b)(1) or adopted pursuant to section 503" or to "Repairs to residential buildings, except as might be required by ordinances in effect pursuant to section 303(b)(1) or adopted pursuant to section 503" (section 104(b)(5) and (6)), and of a municipal ordinance that adds to the code, section 503(c) says "An ordinance under this subsection shall not be effective nor enforceable unless subsections (d), (e), (f), (g), (h) and (i) have been satisfied." This record does not decide whether the municipality's requirement is one adopted under section 503 or kept in effect by section 303(b)(1). In practice, plan on a Municipal permit for any reroof, as the ordinance and the application state. The application asks for "the signed customer contract" and says "Contractors must obtain the necessary licensing with the Municipality of Norristown"; Section 251-2 of the Municipal Code says "Other than property owners who are performing construction activities on their primary residence, a license issued under this chapter shall be required in order to obtain a permit for construction activities," and its Section 251-23 issues a residential contractor licence "upon providing the License Officer a copy of a current home improvement contractor registration issued by the Commonwealth of Pennsylvania." The 2025 fee schedule sets a minimum permit fee of $154.50 and says "Any person commencing work without first obtaining an approved permit from the Municipality shall be subject to a payment of double the permit fee described above." The Department says "For Residential properties this process can take up to 15 days." Applications are taken at Municipal Hall, 235 East Airy Street, 2nd Floor (610-272-8080, ext. 2953); inspections are scheduled at 610-270-0441.

Roof code checklist: Municipality of Norristown, PA

ItemAnswerCode citeSourceVerified
Permit to replace a roofYesnorristown.gov2026-10-06
Repair permit thresholdPublishedpacodeandbulletin.gov2026-10-06
Layer limit / roof-overPublishedR908.3.1.1pacodeandbulletin.gov2026-10-06
Deck & sheathingPublishedR905.2.1pacodeandbulletin.gov2026-10-06
Drip edgeNot published
Ice & water shieldNot published
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNopacodeandbulletin.gov2026-10-06
Wind design criteriaNot published
Adopted codePublishedSec. 132-2pacodeandbulletin.gov2026-10-06
Contractor license / registrationYespalegis.us2026-10-06
Sales & use taxPublishedpa.gov2026-10-06

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
Municipality of Norristown, Pennsylvania
Jurisdiction type
city
Address
235 East Airy Street, 2nd Floor, Norristown, PA 19401
Contact
  • url: https://www.norristown.gov/180/Building-Code-Enforcement
  • phone: 610-272-8080, ext. 2953
Roofing permit required
Required
Contractor registration required
Required
Permit process note
Section 132-5 of the Municipal Code says "Pursuant to and in accordance with State Act 92, Section 104(b)(5) and (6), the Municipality will require permits for residential alterations and repairs." Read October 6, 2026: the Department of Buildings & Code Compliance's Permit Application (last revised March 2026) lists "Roofing" among the types of work an applicant checks, carries a "Roofing Permit Section" asking for "Roofing Contractor Information" and the "Estimated Cost of Construction (Roofing Construction Only)," and says "PERMIT MUST BE APPROVED, ISSUED, AND POSTED ON THE JOB SITE PRIOR TO BEGINNING WORK!" Under state law, Act 45 says the Act "shall not apply to" "Alterations to residential buildings which do not make structural changes or changes to means of egress, except as might be required by ordinances in effect pursuant to section 303(b)(1) or adopted pursuant to section 503" or to "Repairs to residential buildings, except as might be required by ordinances in effect pursuant to section 303(b)(1) or adopted pursuant to section 503" (section 104(b)(5) and (6)), and of a municipal ordinance that adds to the code, section 503(c) says "An ordinance under this subsection shall not be effective nor enforceable unless subsections (d), (e), (f), (g), (h) and (i) have been satisfied." This record does not decide whether the municipality's requirement is one adopted under section 503 or kept in effect by section 303(b)(1). In practice, plan on a Municipal permit for any reroof, as the ordinance and the application state. The application asks for "the signed customer contract" and says "Contractors must obtain the necessary licensing with the Municipality of Norristown"; Section 251-2 of the Municipal Code says "Other than property owners who are performing construction activities on their primary residence, a license issued under this chapter shall be required in order to obtain a permit for construction activities," and its Section 251-23 issues a residential contractor licence "upon providing the License Officer a copy of a current home improvement contractor registration issued by the Commonwealth of Pennsylvania." The 2025 fee schedule sets a minimum permit fee of $154.50 and says "Any person commencing work without first obtaining an approved permit from the Municipality shall be subject to a payment of double the permit fee described above." The Department says "For Residential properties this process can take up to 15 days." Applications are taken at Municipal Hall, 235 East Airy Street, 2nd Floor (610-272-8080, ext. 2953); inspections are scheduled at 610-270-0441.
Adopted code
The 2021 International Residential Code, as adopted by the State in the Pennsylvania Uniform Construction Code (UCC). 34 Pa. Code 403.21(a)(7) adopts "The 'International Residential Code of 2021,' except that:" followed by the State's list of exclusions and modifications, effective January 1, 2026 (55 Pa.B. 7701). None of the State's changes touches Chapter 9, Roof Assemblies, or Section R803, Roof Sheathing, so those apply as the International Code Council publishes them. Work on existing buildings is also pointed to the State's existing-building code: "The repair, alteration, change of occupancy, addition and relocation of existing buildings must comply with Chapter 34 of the 'International Building Code of 2021' or with the 'International Existing Building Code of 2021'" (34 Pa. Code 403.21(f)). The UCC is the minimum everywhere in the state: "no municipality may propose or enact any ordinance which is less than the minimum requirement of the Uniform Construction Code" (Pennsylvania Construction Code Act, Act 45 of 1999, section 503(b)). The Act also lists work it "shall not apply to", including "Alterations to residential buildings which do not make structural changes or changes to means of egress" or to "Repairs to residential buildings," in each case "except as might be required by ordinances" kept in force under section 303(b)(1) or adopted under section 503 (Act 45 section 104(b)(5) and (6); 34 Pa. Code 403.1(b)(8) and (9)). The Act defines a repair as "The reconstruction or renewal of any part of an existing building for the purpose of its maintenance." So whether the code's roofing rules reach a given house reroof depends on the municipality's own ordinances. Everything above is Pennsylvania state law, the same in every municipality. Locally, The Municipality of Norristown administers the code itself: Section 132-2 of the Municipal Code says the Municipality "hereby elects to administer and enforce the Uniform Construction Code (UCC), as amended, as its municipal building code," and its Department of Buildings & Code Compliance, under its Code Compliance Manager and Building Code Official, reviews permits and inspects with its own building inspector. Section 132-5 of the Municipal Code says "Pursuant to and in accordance with State Act 92, Section 104(b)(5) and (6), the Municipality will require permits for residential alterations and repairs." Chapter 132 of the Municipal Code, Construction Codes, Uniform (Sections 132-1 to 132-7, Ord. No. 13-09), read in full, adopts the Uniform Construction Code "as amended" with "all subsequent editions or successor codes," and changes nothing in the code's roofing provisions. Its Section 132-5 also keeps in force building code ordinances adopted "on or before July 1, 1999," which this record did not identify or read, and the Municipality's property maintenance chapter, Chapter 239A, was not read. The Department's permit application names roofing as permit work; it is quoted in the permit entries of this record.
Impact-resistant roofing
Not required — No impact-resistance requirement under state law. The State's adoption of the 2021 International Residential Code (34 Pa. Code 403.21) contains no hail or impact rule, and it makes no change to the code's roof assemblies chapter, which itself has no UL 2218, Class 4 or hail-impact requirement for roof coverings. A municipality could add one only by an ordinance that equals or exceeds the Uniform Construction Code under Act 45 section 503, filed with the Department of Labor and Industry; none of the filings on the Department's register of municipal code change ordinances mentions hail or impact resistance. An owner may still choose an impact-rated roof covering. Everything above is Pennsylvania state law, the same in every municipality. Locally, The Municipality of Norristown administers the code itself: Section 132-2 of the Municipal Code says the Municipality "hereby elects to administer and enforce the Uniform Construction Code (UCC), as amended, as its municipal building code," and its Department of Buildings & Code Compliance, under its Code Compliance Manager and Building Code Official, reviews permits and inspects with its own building inspector. Chapter 132 of the Municipal Code, read in full, and the Department's permit application set no UL 2218, Class 4 or hail-impact requirement.
Repair permit threshold
Norristown requires permits for residential repairs by ordinance and names roofing as permit work on its application, with no size threshold. Section 132-5 of the Municipal Code says "Pursuant to and in accordance with State Act 92, Section 104(b)(5) and (6), the Municipality will require permits for residential alterations and repairs." Read October 6, 2026: the Department of Buildings & Code Compliance's Permit Application (last revised March 2026) lists "Roofing" among the types of work an applicant checks, carries a "Roofing Permit Section" asking for "Roofing Contractor Information" and the "Estimated Cost of Construction (Roofing Construction Only)," and says "PERMIT MUST BE APPROVED, ISSUED, AND POSTED ON THE JOB SITE PRIOR TO BEGINNING WORK!" Under state law, Act 45 says the Act "shall not apply to" "Alterations to residential buildings which do not make structural changes or changes to means of egress, except as might be required by ordinances in effect pursuant to section 303(b)(1) or adopted pursuant to section 503" or to "Repairs to residential buildings, except as might be required by ordinances in effect pursuant to section 303(b)(1) or adopted pursuant to section 503" (section 104(b)(5) and (6)), and of a municipal ordinance that adds to the code, section 503(c) says "An ordinance under this subsection shall not be effective nor enforceable unless subsections (d), (e), (f), (g), (h) and (i) have been satisfied." This record does not decide whether the municipality's requirement is one adopted under section 503 or kept in effect by section 303(b)(1). State law sets no square-footage or percentage threshold for roof work; any threshold is set locally. The Uniform Construction Code "does not apply to" "Alterations to residential buildings which do not make structural changes or changes to means of egress, except as required by ordinances in effect under sections 303(b)(1) or 503 of the act" or to "Repairs to residential buildings, except as required by ordinances in effect under sections 303(b)(1) and 503 of the act" (34 Pa. Code 403.1(b)(8) and (9)), and "A permit is not required for the exceptions listed in § 403.1(b) (relating to scope) and the following, if the work does not violate a law or ordinance" (34 Pa. Code 403.62(c)). For houses the regulation adds: "An ordinary repair does not require a permit." Its list of work that is not an ordinary repair names cutting away a load-bearing wall, "The removal or cutting of any structural beam or load-bearing support," changes to a required means of egress, and new or relocated piping, wiring or mechanical work (34 Pa. Code 403.62(d)); roofing is not named. A municipality may require more: under Act 45 section 503(c) it "may enact ordinances pursuant to this section which adopt additional code requirements for alterations or repairs to residential buildings," after a public hearing and after filing the proposed ordinance with the Department of Labor and Industry. These rules concern a "Residential building," which the regulation defines as "Detached one-family and two-family dwellings and townhouses which are not more than three stories above grade plane in height with a separate means of egress and their accessory structures" (34 Pa. Code 401.1). Everything above is Pennsylvania state law, the same in every municipality. Locally, The Municipality of Norristown administers the code itself: Section 132-2 of the Municipal Code says the Municipality "hereby elects to administer and enforce the Uniform Construction Code (UCC), as amended, as its municipal building code," and its Department of Buildings & Code Compliance, under its Code Compliance Manager and Building Code Official, reviews permits and inspects with its own building inspector. Chapter 132 of the Municipal Code, Construction Codes, Uniform (Sections 132-1 to 132-7, Ord. No. 13-09), read in full, adopts the Uniform Construction Code "as amended" with "all subsequent editions or successor codes," and changes nothing in the code's roofing provisions. Its Section 132-5 also keeps in force building code ordinances adopted "on or before July 1, 1999," which this record did not identify or read, and the Municipality's property maintenance chapter, Chapter 239A, was not read.
Roof layer limit / recover
Two layers at most where the state code reaches the job. Pennsylvania adopts the 2021 International Residential Code without changing its reroofing section, R908 (34 Pa. Code 403.21(a)(7); the State's list of changes names no Chapter 9 section). Section R908.3.1.1 says "A roof recover shall not be permitted where any of the following conditions occur," and the third condition is "Where the existing roof has two or more applications of any type of roof covering." So one existing layer may be covered once, and a roof that already has two layers is torn off to the deck. The same section also bars a recover "Where 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" and "Where the existing roof covering is slate, clay, cement or asbestos-cement tile." The existing-building code the State also adopts, the 2021 International Existing Building Code (34 Pa. Code 403.21(f)), carries the same three conditions in Section 705.2.1.1. These rules bind work the Uniform Construction Code reaches. The Act does not apply to "Repairs to residential buildings" or to alterations that make no structural change, "except as might be required by ordinances" (Act 45 section 104(b)(5) and (6)), so whether R908 binds a particular house reroof turns on that exclusion and on the municipality's own ordinances. Everything above is Pennsylvania state law, the same in every municipality. Locally, The Municipality of Norristown administers the code itself: Section 132-2 of the Municipal Code says the Municipality "hereby elects to administer and enforce the Uniform Construction Code (UCC), as amended, as its municipal building code," and its Department of Buildings & Code Compliance, under its Code Compliance Manager and Building Code Official, reviews permits and inspects with its own building inspector. Chapter 132 of the Municipal Code, Construction Codes, Uniform (Sections 132-1 to 132-7, Ord. No. 13-09), read in full, adopts the Uniform Construction Code "as amended" with "all subsequent editions or successor codes," and changes nothing in the code's roofing provisions. Its Section 132-5 also keeps in force building code ordinances adopted "on or before July 1, 1999," which this record did not identify or read, and the Municipality's property maintenance chapter, Chapter 239A, was not read. The Department's permit application and fee schedule say nothing on roof layers.
Deck & sheathing requirements
State rules from the base code, where the state code reaches the job. Pennsylvania adopts the 2021 International Residential Code without changing Section R803, Roof Sheathing (34 Pa. Code 403.21(a)(7); the State's changes to Chapter 8 are to ridge framing and attic ventilation). Lumber roof sheathing follows Table R803.1: over rafters or beams 24 inches apart it must be at least 5/8 inch net thick. Wood structural panels "shall be identified for grade, bond classification and performance category by a grade mark or certificate of inspection issued by an approved agency," and their spans "shall not exceed the values set forth in Table R503.2.1.1(1) or APA E30." For shingles, "Asphalt shingles shall be fastened to solidly sheathed decks" (R905.2.1), and on any reroof "The structural roof components shall be capable of supporting the roof covering system and the material and equipment loads that will be encountered during installation of the roof covering system" (R908.2). These rules bind work the Uniform Construction Code reaches; the Act does not apply to "Repairs to residential buildings" or to alterations that make no structural change, "except as might be required by ordinances" (Act 45 section 104(b)(5) and (6)). Act 45 section 104(b)(5) excludes alterations "which do not make structural changes or changes to means of egress" and says only that "a structural change does not include a minor framing change needed to replace existing windows or doors"; 34 Pa. Code 403.62(d)(2) lists "The removal or cutting of any structural beam or load-bearing support" as not an ordinary repair. Neither names roof sheathing; this record does not decide whether replacing it is either. Everything above is Pennsylvania state law, the same in every municipality. Locally, The Municipality of Norristown administers the code itself: Section 132-2 of the Municipal Code says the Municipality "hereby elects to administer and enforce the Uniform Construction Code (UCC), as amended, as its municipal building code," and its Department of Buildings & Code Compliance, under its Code Compliance Manager and Building Code Official, reviews permits and inspects with its own building inspector. Chapter 132 of the Municipal Code, Construction Codes, Uniform (Sections 132-1 to 132-7, Ord. No. 13-09), read in full, adopts the Uniform Construction Code "as amended" with "all subsequent editions or successor codes," and changes nothing in the code's roofing provisions. Its Section 132-5 also keeps in force building code ordinances adopted "on or before July 1, 1999," which this record did not identify or read, and the Municipality's property maintenance chapter, Chapter 239A, was not read. The Department's permit application and fee schedule draw no line for roof sheathing.
Sales & use tax
6% Pennsylvania sales and use tax, with a local tax added on purchases made in Allegheny County (1%) and Philadelphia (2%). On a reroof the roofer pays the tax on the materials and does not add it to the homeowner's bill. The Department of Revenue says: "The Pennsylvania sales tax rate is 6 percent. By law, a 1 percent local tax is added to purchases made in Allegheny County, and 2 percent local tax is added to purchases made in Philadelphia." Roof work is a construction activity: the rule's list of items "presumed to become a permanent part of real estate" includes "Roofing (repairs)" (61 Pa. Code 31.11). For construction activities, "A contractor shall pay tax upon the purchase price ... of all property, including materials, equipment, components and supplies, which he furnishes and installs" (61 Pa. Code 31.12(a)(1)), and the rule's example says the contractor "does not charge sales tax on this transaction to his customer. The contractor may include the tax he must pay in his bid proposal but not as a separately stated item." Apart from limited exceptions set out in the rule, the same holds on jobs for tax-exempt owners: "a contractor erecting a building, repairing a roof, replacing a door for a governmental agency, ... school district, charitable or religious organization, and the like, shall pay tax upon the property which he consumes" (61 Pa. Code 31.13(a)). Everything above is Pennsylvania state law, the same in every municipality. Norristown is in Montgomery County. Its Department of Buildings & Code Compliance, which administers the Uniform Construction Code there, states nothing on sales tax on the permit application and fee schedule read for this record.

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The Municipality of Norristown's Department of Buildings & Code Compliance, at Municipal Hall, 235 East Airy Street, administers the Uniform Construction Code for Norristown and takes permit applications, roofing included, on its own Permit Application. The Pennsylvania Uniform Construction Code applies statewide, but the Pennsylvania Construction Code Act (Act 45 of 1999) says the Act "shall not apply to" "Repairs to residential buildings, except as might be required by ordinances in effect pursuant to section 303(b)(1) or adopted pursuant to section 503" (section 104(b)(6)).

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Roofing questions: Municipality of Norristown, PA

Do you need a permit to replace a roof in Municipality of Norristown, PA?

Yes, a permit is required to replace a roof in Municipality of Norristown, PA. Norristown requires permits for residential repairs by ordinance and names roofing as permit work on its application, with no size threshold. Section 132-5 of the Municipal Code says "Pursuant to and in accordance with State Act 92, Section 104(b)(5) and (6), the Municipality will require permits for residential alterations and repairs." Read October 6, 2026: the Department of Buildings & Code Compliance's Permit Application (last revised March 2026) lists "Roofing" among the types of work an applicant checks, carries a "Roofing Permit Section" asking for "Roofing Contractor Information" and the "Estimated Cost of Construction (Roofing Construction Only)," and says "PERMIT MUST BE APPROVED, ISSUED, AND POSTED ON THE JOB SITE PRIOR TO BEGINNING WORK!" Under state law, Act 45 says the Act "shall not apply to" "Alterations to residential buildings which do not make structural changes or changes to means of egress, except as might be required by ordinances in effect pursuant to section 303(b)(1) or adopted pursuant to section 503" or to "Repairs to residential buildings, except as might be required by ordinances in effect pursuant to section 303(b)(1) or adopted pursuant to section 503" (section 104(b)(5) and (6)), and of a municipal ordinance that adds to the code, section 503(c) says "An ordinance under this subsection shall not be effective nor enforceable unless subsections (d), (e), (f), (g), (h) and (i) have been satisfied." This record does not decide whether the municipality's requirement is one adopted under section 503 or kept in effect by section 303(b)(1). State law sets no square-footage or percentage threshold for roof work; any threshold is set locally. The Uniform Construction Code "does not apply to" "Alterations to residential buildings which do not make structural changes or changes to means of egress, except as required by ordinances in effect under sections 303(b)(1) or 503 of the act" or to "Repairs to residential buildings, except as required by ordinances in effect under sections 303(b)(1) and 503 of the act" (34 Pa. Code 403.1(b)(8) and (9)), and "A permit is not required for the exceptions listed in § 403.1(b) (relating to scope) and the following, if the work does not violate a law or ordinance" (34 Pa. Code 403.62(c)). For houses the regulation adds: "An ordinary repair does not require a permit." Its list of work that is not an ordinary repair names cutting away a load-bearing wall, "The removal or cutting of any structural beam or load-bearing support," changes to a required means of egress, and new or relocated piping, wiring or mechanical work (34 Pa. Code 403.62(d)); roofing is not named. A municipality may require more: under Act 45 section 503(c) it "may enact ordinances pursuant to this section which adopt additional code requirements for alterations or repairs to residential buildings," after a public hearing and after filing the proposed ordinance with the Department of Labor and Industry. These rules concern a "Residential building," which the regulation defines as "Detached one-family and two-family dwellings and townhouses which are not more than three stories above grade plane in height with a separate means of egress and their accessory structures" (34 Pa. Code 401.1). Everything above is Pennsylvania state law, the same in every municipality. Locally, The Municipality of Norristown administers the code itself: Section 132-2 of the Municipal Code says the Municipality "hereby elects to administer and enforce the Uniform Construction Code (UCC), as amended, as its municipal building code," and its Department of Buildings & Code Compliance, under its Code Compliance Manager and Building Code Official, reviews permits and inspects with its own building inspector. Chapter 132 of the Municipal Code, Construction Codes, Uniform (Sections 132-1 to 132-7, Ord. No. 13-09), read in full, adopts the Uniform Construction Code "as amended" with "all subsequent editions or successor codes," and changes nothing in the code's roofing provisions. Its Section 132-5 also keeps in force building code ordinances adopted "on or before July 1, 1999," which this record did not identify or read, and the Municipality's property maintenance chapter, Chapter 239A, was not read.

Can you roof over an existing roof in Municipality of Norristown, PA?

Two layers at most where the state code reaches the job. Pennsylvania adopts the 2021 International Residential Code without changing its reroofing section, R908 (34 Pa. Code 403.21(a)(7); the State's list of changes names no Chapter 9 section). Section R908.3.1.1 says "A roof recover shall not be permitted where any of the following conditions occur," and the third condition is "Where the existing roof has two or more applications of any type of roof covering." So one existing layer may be covered once, and a roof that already has two layers is torn off to the deck. The same section also bars a recover "Where 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" and "Where the existing roof covering is slate, clay, cement or asbestos-cement tile." The existing-building code the State also adopts, the 2021 International Existing Building Code (34 Pa. Code 403.21(f)), carries the same three conditions in Section 705.2.1.1. These rules bind work the Uniform Construction Code reaches. The Act does not apply to "Repairs to residential buildings" or to alterations that make no structural change, "except as might be required by ordinances" (Act 45 section 104(b)(5) and (6)), so whether R908 binds a particular house reroof turns on that exclusion and on the municipality's own ordinances. Everything above is Pennsylvania state law, the same in every municipality. Locally, The Municipality of Norristown administers the code itself: Section 132-2 of the Municipal Code says the Municipality "hereby elects to administer and enforce the Uniform Construction Code (UCC), as amended, as its municipal building code," and its Department of Buildings & Code Compliance, under its Code Compliance Manager and Building Code Official, reviews permits and inspects with its own building inspector. Chapter 132 of the Municipal Code, Construction Codes, Uniform (Sections 132-1 to 132-7, Ord. No. 13-09), read in full, adopts the Uniform Construction Code "as amended" with "all subsequent editions or successor codes," and changes nothing in the code's roofing provisions. Its Section 132-5 also keeps in force building code ordinances adopted "on or before July 1, 1999," which this record did not identify or read, and the Municipality's property maintenance chapter, Chapter 239A, was not read. The Department's permit application and fee schedule say nothing on roof layers.

Do roofing contractors need a license or registration in Municipality of Norristown, PA?

Yes.

What building code does Municipality of Norristown, PA use?

The 2021 International Residential Code, as adopted by the State in the Pennsylvania Uniform Construction Code (UCC). 34 Pa. Code 403.21(a)(7) adopts "The 'International Residential Code of 2021,' except that:" followed by the State's list of exclusions and modifications, effective January 1, 2026 (55 Pa.B. 7701). None of the State's changes touches Chapter 9, Roof Assemblies, or Section R803, Roof Sheathing, so those apply as the International Code Council publishes them. Work on existing buildings is also pointed to the State's existing-building code: "The repair, alteration, change of occupancy, addition and relocation of existing buildings must comply with Chapter 34 of the 'International Building Code of 2021' or with the 'International Existing Building Code of 2021'" (34 Pa. Code 403.21(f)). The UCC is the minimum everywhere in the state: "no municipality may propose or enact any ordinance which is less than the minimum requirement of the Uniform Construction Code" (Pennsylvania Construction Code Act, Act 45 of 1999, section 503(b)). The Act also lists work it "shall not apply to", including "Alterations to residential buildings which do not make structural changes or changes to means of egress" or to "Repairs to residential buildings," in each case "except as might be required by ordinances" kept in force under section 303(b)(1) or adopted under section 503 (Act 45 section 104(b)(5) and (6); 34 Pa. Code 403.1(b)(8) and (9)). The Act defines a repair as "The reconstruction or renewal of any part of an existing building for the purpose of its maintenance." So whether the code's roofing rules reach a given house reroof depends on the municipality's own ordinances. Everything above is Pennsylvania state law, the same in every municipality. Locally, The Municipality of Norristown administers the code itself: Section 132-2 of the Municipal Code says the Municipality "hereby elects to administer and enforce the Uniform Construction Code (UCC), as amended, as its municipal building code," and its Department of Buildings & Code Compliance, under its Code Compliance Manager and Building Code Official, reviews permits and inspects with its own building inspector. Section 132-5 of the Municipal Code says "Pursuant to and in accordance with State Act 92, Section 104(b)(5) and (6), the Municipality will require permits for residential alterations and repairs." Chapter 132 of the Municipal Code, Construction Codes, Uniform (Sections 132-1 to 132-7, Ord. No. 13-09), read in full, adopts the Uniform Construction Code "as amended" with "all subsequent editions or successor codes," and changes nothing in the code's roofing provisions. Its Section 132-5 also keeps in force building code ordinances adopted "on or before July 1, 1999," which this record did not identify or read, and the Municipality's property maintenance chapter, Chapter 239A, was not read. The Department's permit application names roofing as permit work; it is quoted in the permit entries of this record.