Permitting Authorities / West Hempfield Township - Building Code Permits

Do you need a permit to replace a roof in Township of West Hempfield, PA?

Adopted code

West Hempfield Township - Building Code Permits

West Hempfield Township issues zoning and building code permits at its office at 3476 Marietta Avenue, Lancaster, and uses Commonwealth Code Inspection Services as its third-party building code official, plan reviewer and inspector. The Pennsylvania Uniform Construction Code applies statewide, but Act 45 section 104(b) lists "Repairs to residential buildings" and alterations that make no structural or egress change among work it 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."

Roof code checklist: Township of West Hempfield, PA

ItemAnswerCode citeSourceVerified
Permit to replace a roofNot published
Repair permit thresholdPublishedpacodeandbulletin.gov2026-10-07
Layer limit / roof-overPublishedR908.3.1.1pacodeandbulletin.gov2026-10-07
Deck & sheathingPublishedR905.2.1pacodeandbulletin.gov2026-10-07
Drip edgeNot published
Ice & water shieldNot published
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNopacodeandbulletin.gov2026-10-07
Wind design criteriaNot published
Adopted codePublishedSec. 51-3pacodeandbulletin.gov2026-10-07
Contractor license / registrationYespalegis.us2026-10-07
Sales & use taxPublishedpa.gov2026-10-07

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 West Hempfield, Pennsylvania
Jurisdiction type
city
Address
3476 Marietta Avenue, Lancaster, PA 17601
Contact
  • url: http://www.westhempfield.org/subpage.php?link=permits
  • phone: 717-285-5554
Contractor registration required
Required
Permit process note
West Hempfield Township's own pages do not say whether a house reroof needs a building code permit. Section 51-5 of the Township Code says "All construction which the Act or the Regulations exempt from compliance with the UCC are exempt from the provisions of this article" and "Items exempted from compliance with the UCC by Sections 403.1(b) and 403.1(e) of the Regulations do not have to comply with this article but shall comply with all other applicable Township ordinances." Section 51-8 adds to the State's permit sections that "It shall be the joint responsibility of the owner, lessee, if any, and the contractor to determine that a Construction Code permit (and all other required permits and approvals) has been obtained before performing any work." The Township's Building Permits page (read October 7, 2026) says "Many projects such as decks, house additions, and pools will require both permits," meaning zoning and building code permits, and its Building Code Permit Application names no kind of work; neither names roof work, as permit work or as exempt. The Township has published no building permit fee schedule or permit-type list, and Chapter 72 of the Township Code, Fees, sets only hearing and records fees. 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." No Township text or statement read for this record says whether a house reroof needs a building code permit, so this record does not state an answer; ask the Township office or Commonwealth Code Inspection Service before the job starts. Section 51-9 sets a penalty of "not less than $100 and not more than $500 for each violation, plus all costs of prosecution" for work in violation of the Township's construction code. The Township's process: the applicant contacts Commonwealth Code Inspection Service about the project, then brings the zoning permit application, the Building Code Permit Application and proof of workers' compensation insurance to the Zoning Officer at the Township office; the Township's zoning fee and the agency's plan review fee are paid separately when the permit is picked up. The office is open 8 AM to 4:30 PM, Monday through Friday, at 717-285-5554. Read for this answer: Chapter 51 of the Township Code, Building Regulations, in full, which is the Township's Uniform Construction Code ordinance with its amendments and its permit provisions; Chapter 9, Construction Code Agreements; Chapter 72, Fees; every page of searches of the whole Township Code for "roof" and for "reroofing," which found no permit provision naming roof work; the Township's Building Permits page; and the Building Code Permit Application.
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, West Hempfield Township administers the code with a retained agency: Section 51-3 of the Township Code adopts the Uniform Construction Code, "as such standards and codes adopted by the Regulations may be amended from time to time as the West Hempfield Township Construction Code," Section 51-6 has the Board of Supervisors appoint a building code official and lets registered third-party agencies serve as construction code officials, and the Township's Building Permits page says "West Hempfield Township administers the Pennsylvania Uniform Construction Code (UCC) with the assistance of Third Party Plan Reviewers and Inspectors." Its Building Code Permit Application says "West Hempfield Township uses Commonwealth Code Inspection Services as our third-party BCO, plan reviewer and inspector" (717-664-2347). The Township office is at 3476 Marietta Avenue, Lancaster. Section 51-8 fills in Table R301.2(1) with a ground snow load of 30 pounds per square foot and flood hazard dates, and Chapter 51 changes nothing in the code's roofing provisions. The Township's pages name no code edition.
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, West Hempfield Township administers the code with a retained agency: Section 51-3 of the Township Code adopts the Uniform Construction Code, "as such standards and codes adopted by the Regulations may be amended from time to time as the West Hempfield Township Construction Code," Section 51-6 has the Board of Supervisors appoint a building code official and lets registered third-party agencies serve as construction code officials, and the Township's Building Permits page says "West Hempfield Township administers the Pennsylvania Uniform Construction Code (UCC) with the assistance of Third Party Plan Reviewers and Inspectors." Its Building Code Permit Application says "West Hempfield Township uses Commonwealth Code Inspection Services as our third-party BCO, plan reviewer and inspector" (717-664-2347). The Township office is at 3476 Marietta Avenue, Lancaster. Chapter 51 of the Township Code, read in full, contains no UL 2218, Class 4 or hail-impact requirement. The Township's pages name no code edition.
Repair permit threshold
West Hempfield Township's construction code exempts what the State's code exempts, and the Township's pages do not name roof work. Section 51-5 of the Township Code says "All construction which the Act or the Regulations exempt from compliance with the UCC are exempt from the provisions of this article" and "Items exempted from compliance with the UCC by Sections 403.1(b) and 403.1(e) of the Regulations do not have to comply with this article but shall comply with all other applicable Township ordinances." Section 51-8 adds to the State's permit sections that "It shall be the joint responsibility of the owner, lessee, if any, and the contractor to determine that a Construction Code permit (and all other required permits and approvals) has been obtained before performing any work." The Township's Building Permits page (read October 7, 2026) says "Many projects such as decks, house additions, and pools will require both permits," meaning zoning and building code permits, and its Building Code Permit Application names no kind of work; neither names roof work, as permit work or as exempt. The Township has published no building permit fee schedule or permit-type list, and Chapter 72 of the Township Code, Fees, sets only hearing and records fees. 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, West Hempfield Township administers the code with a retained agency: Section 51-3 of the Township Code adopts the Uniform Construction Code, "as such standards and codes adopted by the Regulations may be amended from time to time as the West Hempfield Township Construction Code," Section 51-6 has the Board of Supervisors appoint a building code official and lets registered third-party agencies serve as construction code officials, and the Township's Building Permits page says "West Hempfield Township administers the Pennsylvania Uniform Construction Code (UCC) with the assistance of Third Party Plan Reviewers and Inspectors." Its Building Code Permit Application says "West Hempfield Township uses Commonwealth Code Inspection Services as our third-party BCO, plan reviewer and inspector" (717-664-2347). The Township office is at 3476 Marietta Avenue, Lancaster. 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, West Hempfield Township administers the code with a retained agency: Section 51-3 of the Township Code adopts the Uniform Construction Code, "as such standards and codes adopted by the Regulations may be amended from time to time as the West Hempfield Township Construction Code," Section 51-6 has the Board of Supervisors appoint a building code official and lets registered third-party agencies serve as construction code officials, and the Township's Building Permits page says "West Hempfield Township administers the Pennsylvania Uniform Construction Code (UCC) with the assistance of Third Party Plan Reviewers and Inspectors." Its Building Code Permit Application says "West Hempfield Township uses Commonwealth Code Inspection Services as our third-party BCO, plan reviewer and inspector" (717-664-2347). The Township office is at 3476 Marietta Avenue, Lancaster. Chapter 51 of the Township Code changes nothing in the code's reroofing provisions, and the Township's pages say nothing on roof layers or on whether a reroof needs a permit. The Township's pages name no code edition.
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, West Hempfield Township administers the code with a retained agency: Section 51-3 of the Township Code adopts the Uniform Construction Code, "as such standards and codes adopted by the Regulations may be amended from time to time as the West Hempfield Township Construction Code," Section 51-6 has the Board of Supervisors appoint a building code official and lets registered third-party agencies serve as construction code officials, and the Township's Building Permits page says "West Hempfield Township administers the Pennsylvania Uniform Construction Code (UCC) with the assistance of Third Party Plan Reviewers and Inspectors." Its Building Code Permit Application says "West Hempfield Township uses Commonwealth Code Inspection Services as our third-party BCO, plan reviewer and inspector" (717-664-2347). The Township office is at 3476 Marietta Avenue, Lancaster. Chapter 51 of the Township Code changes nothing in the code's roof sheathing provisions, and the Township's pages draw no separate line for roof sheathing. 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. West Hempfield Township is in Lancaster County. The Township's permit pages say nothing on sales tax.

Working an insurance claim in Township of West Hempfield, PA? Everything on this page (drip edge, ice & water shield, inspections, Class 4 rules) formatted as a claim-ready evidence pack: verbatim ordinance quotes, code section cites, verification dates, and official source links, ready to attach to a supplement. See a real sample pack (PDF, 4 pages, free).

Buy this jurisdiction's pack: $12 Delivered by email within minutes.

Questions about the Township of West Hempfield, PA pack?

Not ready to buy, or need a different jurisdiction? Tell us and we’ll reply directly.

By submitting, you agree to our Terms of Use and Privacy Policy.

Sources

Roofing questions: Township of West Hempfield, PA

When does a roof repair need a permit in Township of West Hempfield, PA?

West Hempfield Township's construction code exempts what the State's code exempts, and the Township's pages do not name roof work. Section 51-5 of the Township Code says "All construction which the Act or the Regulations exempt from compliance with the UCC are exempt from the provisions of this article" and "Items exempted from compliance with the UCC by Sections 403.1(b) and 403.1(e) of the Regulations do not have to comply with this article but shall comply with all other applicable Township ordinances." Section 51-8 adds to the State's permit sections that "It shall be the joint responsibility of the owner, lessee, if any, and the contractor to determine that a Construction Code permit (and all other required permits and approvals) has been obtained before performing any work." The Township's Building Permits page (read October 7, 2026) says "Many projects such as decks, house additions, and pools will require both permits," meaning zoning and building code permits, and its Building Code Permit Application names no kind of work; neither names roof work, as permit work or as exempt. The Township has published no building permit fee schedule or permit-type list, and Chapter 72 of the Township Code, Fees, sets only hearing and records fees. 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, West Hempfield Township administers the code with a retained agency: Section 51-3 of the Township Code adopts the Uniform Construction Code, "as such standards and codes adopted by the Regulations may be amended from time to time as the West Hempfield Township Construction Code," Section 51-6 has the Board of Supervisors appoint a building code official and lets registered third-party agencies serve as construction code officials, and the Township's Building Permits page says "West Hempfield Township administers the Pennsylvania Uniform Construction Code (UCC) with the assistance of Third Party Plan Reviewers and Inspectors." Its Building Code Permit Application says "West Hempfield Township uses Commonwealth Code Inspection Services as our third-party BCO, plan reviewer and inspector" (717-664-2347). The Township office is at 3476 Marietta Avenue, Lancaster. No Township text read for this record sets an area or cost threshold for roof work.

Can you roof over an existing roof in Township of West Hempfield, 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, West Hempfield Township administers the code with a retained agency: Section 51-3 of the Township Code adopts the Uniform Construction Code, "as such standards and codes adopted by the Regulations may be amended from time to time as the West Hempfield Township Construction Code," Section 51-6 has the Board of Supervisors appoint a building code official and lets registered third-party agencies serve as construction code officials, and the Township's Building Permits page says "West Hempfield Township administers the Pennsylvania Uniform Construction Code (UCC) with the assistance of Third Party Plan Reviewers and Inspectors." Its Building Code Permit Application says "West Hempfield Township uses Commonwealth Code Inspection Services as our third-party BCO, plan reviewer and inspector" (717-664-2347). The Township office is at 3476 Marietta Avenue, Lancaster. Chapter 51 of the Township Code changes nothing in the code's reroofing provisions, and the Township's pages say nothing on roof layers or on whether a reroof needs a permit. The Township's pages name no code edition.

Do roofing contractors need a license or registration in Township of West Hempfield, PA?

Yes.

What building code does Township of West Hempfield, 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, West Hempfield Township administers the code with a retained agency: Section 51-3 of the Township Code adopts the Uniform Construction Code, "as such standards and codes adopted by the Regulations may be amended from time to time as the West Hempfield Township Construction Code," Section 51-6 has the Board of Supervisors appoint a building code official and lets registered third-party agencies serve as construction code officials, and the Township's Building Permits page says "West Hempfield Township administers the Pennsylvania Uniform Construction Code (UCC) with the assistance of Third Party Plan Reviewers and Inspectors." Its Building Code Permit Application says "West Hempfield Township uses Commonwealth Code Inspection Services as our third-party BCO, plan reviewer and inspector" (717-664-2347). The Township office is at 3476 Marietta Avenue, Lancaster. Section 51-8 fills in Table R301.2(1) with a ground snow load of 30 pounds per square foot and flood hazard dates, and Chapter 51 changes nothing in the code's roofing provisions. The Township's pages name no code edition.