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

Roofing questions: Township of Horsham, PA

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

Yes, a permit is required to replace a roof in Township of Horsham, PA. Horsham Township lists re-roofing as permit work without a size threshold. The Code Enforcement Department's Permit Requirements page (read October 6, 2026) lists under "A Building Permit and/or Zoning Use Permit are required for:" the item "New or Re-roofing and/or Siding," and its list of work for which "Permits are NOT required" names "Non-structural minor repairs" but no roof work. The department's Residential Permit Requirements sheet (dated 01/2013) has a section headed "ROOFING, SIDING AND WINDOW ENLARGEMENTS" that asks for a completed permit application, "Fire rated plywood on townhouses, condos, etc. where required," an "Insurance Certificate showing workers compensation" and "All fees paid." Chapter 90 of the Township Code adopts the Uniform Construction Code "as amended from time to time" (Section 90-2) and names no roof work. Section 90-8.C says "Section 403.62(c)(1)(xvii) is deleted in its entirety"; the State's current Section 403.62(c) numbers its exceptions (1) to (9), with no item (1)(xvii), and this record has not read the earlier text of the regulation that the 2004 ordinance refers to. 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, expect the Township to require a permit for a reroof; its Permit Requirements page says "Fines can be issued for any work begun prior to the issuance of the required permits" and asks anyone unsure whether a permit is required to "contact the Code Enforcement Department at (215) 643-3131 for assistance before beginning work." 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, Horsham Township administers the code itself: Section 90-1 of the Township Code says the Township "hereby elects to administer and enforce the provisions of the Pennsylvania Construction Code Act," the Code Enforcement Department's page says it "is responsible for administering the local Building and Plumbing Code," and "All inspection requests must be made directly to Horsham Township's Code Department by calling 215-643-3131." The Township uses Code Inspections, Inc. for non-residential electrical plan review. Neither the department's pages nor Chapter 90 sets an area or cost threshold for roof work.

Can you roof over an existing roof in Township of Horsham, 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, Horsham Township administers the code itself: Section 90-1 of the Township Code says the Township "hereby elects to administer and enforce the provisions of the Pennsylvania Construction Code Act," the Code Enforcement Department's page says it "is responsible for administering the local Building and Plumbing Code," and "All inspection requests must be made directly to Horsham Township's Code Department by calling 215-643-3131." The Township uses Code Inspections, Inc. for non-residential electrical plan review. Chapter 90 of the Township Code changes nothing in the code's reroofing provisions, and the department's pages say nothing on roof layers.

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

Yes.

What building code does Township of Horsham, 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, Horsham Township administers the code itself: Section 90-1 of the Township Code says the Township "hereby elects to administer and enforce the provisions of the Pennsylvania Construction Code Act," the Code Enforcement Department's page says it "is responsible for administering the local Building and Plumbing Code," and "All inspection requests must be made directly to Horsham Township's Code Department by calling 215-643-3131." The Township uses Code Inspections, Inc. for non-residential electrical plan review. Section 90-2 adopts the Uniform Construction Code, "as amended from time to time," as the Township's building code, and the department's Building & Plumbing Codes page says "Horsham Township has adopted the following Codes" and lists the "2021 ICC Residential Code" and the "2021 ICC Existing Building Code" among them. Section 90-5 keeps the Township's earlier code ordinances, including its 1994 adoption of the 1993 BOCA National Building Code and the CABO One- and Two-Family Dwelling Code, 1993 Edition, in force "to the extent the regulations set forth in any of the above-mentioned codes are stricter than the UCC Building Code"; those older codes were not read, and the provisions Section 90-5 singles out concern plastic pipe, fire-stopping and garage drywall. Section 90-8.D replaces the State's list of required residential inspections with its own list, which adds wall form, backfill, slab and insulation inspections and names no roof inspection. Chapter 90 changes nothing in the code's roofing provisions.