Roofing questions: Municipality of Mt. Lebanon, PA
When does a roof repair need a permit in Municipality of Mt. Lebanon, PA?
This record does not answer whether a reroof needs a permit in Mt. Lebanon, and no threshold for roof work was found. Read October 6, 2026: the Inspection Office's Inspections, Permits & Zoning page says "Do not proceed with work without a permit" and "Obtain a permit before beginning construction, alteration, replacing or repairing an existing structure," and for residential work "You must get a permit before beginning construction, alteration, replacing or repairing an existing structure, including (but not limited to): Additions, decks, hot tubs, structural roof repairs and window replacements." It adds "If you have any questions regarding the requirement of a building permit, the permit process, applications or Fee Schedule, please call the Inspection Office." The page names no other roof work and does not say that a reroof needs no permit, and the 2026 fee schedule has no reroofing line; residential work is charged under "Single Family Residential - Additions and Exterior/Interior Renovations." The page's only roof example, "structural roof repairs," is limited to structural work. Section 2-101 of the Mt. Lebanon Code, in Chapter 2, Part 1, still adopts the National Building Code of the Building Officials and Code Administrators International, "Twelfth Edition, 1993," stating that it does so "In order to adopt regulations, inter alia, for the construction of new buildings and the alteration and repair of old ones, to require that before the work begins Municipal approval of the plans and specifications therefore be secured," and Section 2-401 keeps in force building code ordinances adopted "on or before July 1, 1999, and which equal or exceed the requirements of the Code." The Inspection Office's pages name no code edition, and this record has not read the 1993 BOCA code's text, including its permit and roofing provisions. 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)). The Mt. Lebanon Code text read for this record names no roof work either way. 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, Mt. Lebanon administers the code itself: Section 2-401 of the Mt. Lebanon Code says "The Municipality of Mt. Lebanon hereby elects to administer and enforce the provisions of the Pennsylvania Construction Code Act" and that administration and enforcement "shall be undertaken by the Chief Inspector of the Municipality who will serve as the municipal employee and code official," and its Inspection Office issues building permits. Chapter 2 of the Mt. Lebanon Code, Buildings, read for Parts 1, 3 and 4 (Sections 2-101, 2-102, 2-301 to 2-303 and 2-401), names no roof covering, reroofing or roof sheathing rule; its only roof words, in an amendment to the 1993 code's section 108.4, set a time limit to "complete the enclosure of all structures, including roof, windows and doors" on new work.
Can you roof over an existing roof in Municipality of Mt. Lebanon, 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, Mt. Lebanon administers the code itself: Section 2-401 of the Mt. Lebanon Code says "The Municipality of Mt. Lebanon hereby elects to administer and enforce the provisions of the Pennsylvania Construction Code Act" and that administration and enforcement "shall be undertaken by the Chief Inspector of the Municipality who will serve as the municipal employee and code official," and its Inspection Office issues building permits. Chapter 2 of the Mt. Lebanon Code, Buildings, read for Parts 1, 3 and 4 (Sections 2-101, 2-102, 2-301 to 2-303 and 2-401), names no roof covering, reroofing or roof sheathing rule; its only roof words, in an amendment to the 1993 code's section 108.4, set a time limit to "complete the enclosure of all structures, including roof, windows and doors" on new work. The Inspection Office's pages name no code edition, and this record has not read the 1993 BOCA code's text, including its reroofing provisions. The Inspection Office's pages say nothing on roof layers.
Do roofing contractors need a license or registration in Municipality of Mt. Lebanon, PA?
Yes.
What building code does Municipality of Mt. Lebanon, 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, Mt. Lebanon administers the code itself: Section 2-401 of the Mt. Lebanon Code says "The Municipality of Mt. Lebanon hereby elects to administer and enforce the provisions of the Pennsylvania Construction Code Act" and that administration and enforcement "shall be undertaken by the Chief Inspector of the Municipality who will serve as the municipal employee and code official," and its Inspection Office issues building permits. Section 2-401 adopts the Uniform Construction Code "as amended from time to time" as the municipal building code. Section 2-101 of the Mt. Lebanon Code, in Chapter 2, Part 1, still adopts the National Building Code of the Building Officials and Code Administrators International, "Twelfth Edition, 1993," stating that it does so "In order to adopt regulations, inter alia, for the construction of new buildings and the alteration and repair of old ones, to require that before the work begins Municipal approval of the plans and specifications therefore be secured," and Section 2-401 keeps in force building code ordinances adopted "on or before July 1, 1999, and which equal or exceed the requirements of the Code." The Inspection Office's pages name no code edition, and this record has not read the 1993 BOCA code's text, including its permit and roofing provisions. Chapter 2 of the Mt. Lebanon Code, Buildings, read for Parts 1, 3 and 4 (Sections 2-101, 2-102, 2-301 to 2-303 and 2-401), names no roof covering, reroofing or roof sheathing rule; its only roof words, in an amendment to the 1993 code's section 108.4, set a time limit to "complete the enclosure of all structures, including roof, windows and doors" on new work.