Jurisdiction
Township of Penn, Pennsylvania (Perry County)
Address
100 Municipal Building Rd., Duncannon, PA 17020
Contact
- url: https://penntownship.net/forms-documents/permits-applications/
- phone: 717-834-5281
Contractor registration required
Required
Permit process note
Penn Township's pages read for this record do not say in the Township's own words whether a house reroof needs a permit. The Township's Permits & Applications page (read October 10, 2026) lists a "Building Permit (Also Demolition)," says "A Zoning Permit is required when any new structure is put on a property, or use of the property is changed," and says "When in doubt, please call us to ask!" It links, as "CLICK HERE TO SEE MORE HELPFUL INFO ON BUILDING PERMITS," a brochure from Building Inspection Underwriters of Pennsylvania, Inc. (read from the rendered page images, as the file is a scan) that says "Building permits are required for the construction, enlargement, movement, change of egress, demolition or the change of occupancy of a residential building" and "Please contact your local Building Department or Building Code Official for help in determining if a permit is required before undertaking any home improvement projects since various exceptions may apply," and lists "Replacement/repair of existing roof" under "A permit is NOT required for the following items as long as the work does not violate a law or ordinance." The Township's Building Permit application, a general form for building and electrical work, lists "( ) Roofing - Total square feet" among its types of work. Article XVIII of the Township's Zoning Ordinance, Section 1802, says zoning permits are secured "prior to the issuance of a permit for the construction, erection or alteration of structure" and that no building or structure shall be "constructed, reconstructed, enlarged or restored, structurally altered or demolished without a building permit"; neither clause names roof work. The Township's Ordinances page posts only its Zoning Ordinance, and no Township building or Uniform Construction Code ordinance was found on its site. Under state law, Act 45 section 104(b)(5) and (6) list "Alterations to residential buildings which do not make structural changes or changes to means of egress" and "Repairs to residential buildings" among work the Act does not apply to, "except as might be required by ordinances in effect pursuant to section 303(b)(1) or adopted pursuant to section 503," and 34 Pa. Code 403.62(c) says "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." Ask the Township office (717-834-5281) before starting; the Permits & Applications page says "If a structure is built without permits, state law allows the removal of the structure at the cost of the landowner." Read for this answer: the Township's Permits & Applications, Codes Enforcement, UCC Board of Appeals, Township Fees, Ordinances and Contact pages; its 2026 fee resolution and the later fee schedule it posts; its Building Permit application, General Permit Application and Zoning Permit application; the building permit brochure; and Article XVIII, Section 1802, of its Zoning Ordinance. The Township office is open 8:00am to 4:30pm, Monday through Friday.
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, Penn Township's Codes Enforcement page lists a Codes Enforcement Officer/Operations Coordinator (717-363-3674) and its UCC Board of Appeals page lists a Uniform Construction Code Board of Appeals; its 2026 fee resolution says "Building Permit fees will be in accordance with the fee schedule of the Township’s Third party inspection agency" without naming the agency; and its Permits & Applications page posts a Building Permit application and a brochure from Building Inspection Underwriters of Pennsylvania, Inc., 25 East McClure Street, New Bloomfield (717-582-4483). The Township office is at 100 Municipal Building Rd., Duncannon (717-834-5281). The Township's pages name no code edition, and no Township ordinance adopting the Uniform Construction Code was found on its site or read for 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, Penn Township's Codes Enforcement page lists a Codes Enforcement Officer/Operations Coordinator (717-363-3674) and its UCC Board of Appeals page lists a Uniform Construction Code Board of Appeals; its 2026 fee resolution says "Building Permit fees will be in accordance with the fee schedule of the Township’s Third party inspection agency" without naming the agency; and its Permits & Applications page posts a Building Permit application and a brochure from Building Inspection Underwriters of Pennsylvania, Inc., 25 East McClure Street, New Bloomfield (717-582-4483). The Township office is at 100 Municipal Building Rd., Duncannon (717-834-5281). The Township's pages and its brochure set no UL 2218, Class 4 or hail-impact requirement and name no code edition.
Repair permit threshold
Penn Township's own pages read for this record do not say in the Township's words whether a house reroof needs a permit. The Township's Permits & Applications page (read October 10, 2026) lists a "Building Permit (Also Demolition)," says "A Zoning Permit is required when any new structure is put on a property, or use of the property is changed," and says "When in doubt, please call us to ask!" It links, as "CLICK HERE TO SEE MORE HELPFUL INFO ON BUILDING PERMITS," a brochure from Building Inspection Underwriters of Pennsylvania, Inc. (read from the rendered page images, as the file is a scan) that says "Building permits are required for the construction, enlargement, movement, change of egress, demolition or the change of occupancy of a residential building" and "Please contact your local Building Department or Building Code Official for help in determining if a permit is required before undertaking any home improvement projects since various exceptions may apply," and lists "Replacement/repair of existing roof" under "A permit is NOT required for the following items as long as the work does not violate a law or ordinance." The Township's Building Permit application, a general form for building and electrical work, lists "( ) Roofing - Total square feet" among its types of work. Article XVIII of the Township's Zoning Ordinance, Section 1802, says zoning permits are secured "prior to the issuance of a permit for the construction, erection or alteration of structure" and that no building or structure shall be "constructed, reconstructed, enlarged or restored, structurally altered or demolished without a building permit"; neither clause names roof work. The Township's Ordinances page posts only its Zoning Ordinance, and no Township building or Uniform Construction Code ordinance was found on its site. Under state law, Act 45 section 104(b)(5) and (6) list "Alterations to residential buildings which do not make structural changes or changes to means of egress" and "Repairs to residential buildings" among work the Act does not apply to, "except as might be required by ordinances in effect pursuant to section 303(b)(1) or adopted pursuant to section 503," and 34 Pa. Code 403.62(c) says "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." 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, Penn Township's Codes Enforcement page lists a Codes Enforcement Officer/Operations Coordinator (717-363-3674) and its UCC Board of Appeals page lists a Uniform Construction Code Board of Appeals; its 2026 fee resolution says "Building Permit fees will be in accordance with the fee schedule of the Township’s Third party inspection agency" without naming the agency; and its Permits & Applications page posts a Building Permit application and a brochure from Building Inspection Underwriters of Pennsylvania, Inc., 25 East McClure Street, New Bloomfield (717-582-4483). The Township office is at 100 Municipal Building Rd., Duncannon (717-834-5281). No Township text read for this record sets an area or cost threshold for roof work.
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, Penn Township's Codes Enforcement page lists a Codes Enforcement Officer/Operations Coordinator (717-363-3674) and its UCC Board of Appeals page lists a Uniform Construction Code Board of Appeals; its 2026 fee resolution says "Building Permit fees will be in accordance with the fee schedule of the Township’s Third party inspection agency" without naming the agency; and its Permits & Applications page posts a Building Permit application and a brochure from Building Inspection Underwriters of Pennsylvania, Inc., 25 East McClure Street, New Bloomfield (717-582-4483). The Township office is at 100 Municipal Building Rd., Duncannon (717-834-5281). The Township's pages and its brochure say nothing on roof layers or on a code edition; its Building Permit application asks for "Roofing - Total square feet" and no layer count.
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, Penn Township's Codes Enforcement page lists a Codes Enforcement Officer/Operations Coordinator (717-363-3674) and its UCC Board of Appeals page lists a Uniform Construction Code Board of Appeals; its 2026 fee resolution says "Building Permit fees will be in accordance with the fee schedule of the Township’s Third party inspection agency" without naming the agency; and its Permits & Applications page posts a Building Permit application and a brochure from Building Inspection Underwriters of Pennsylvania, Inc., 25 East McClure Street, New Bloomfield (717-582-4483). The Township office is at 100 Municipal Building Rd., Duncannon (717-834-5281). The Township's pages and its brochure say nothing on roof sheathing; the brochure lists "Alterations that make structural or egress changes to the structure" among work that needs a permit, and the Township's pages name no code edition.
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. Penn Township is in Perry County. The Township's pages and fee resolution say nothing on sales tax.