Adopted building 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, Colebrookdale Township, in Berks County, has its office at 765 West Philadelphia Avenue, Boyertown. Section 203-2 of the Township Code says "The Township hereby elects to administer and enforce the provisions of the Pennsylvania Construction Code Act," Section 203-3 allows "the retention of one or more construction code officials or third-party agencies to act on behalf of the Township," and the Zoning and Building Permit Application on the Township's Permits and Forms page is headed "LTL CONSULTANTS, LTD – (610-987-9290) PERMIT APPLICATION CHECKLIST" and names "The Municipality and LTL Consultants, Ltd." as the reviewers and inspectors of permitted work. Chapter 203 of the Township Code, Construction Codes, Uniform (Ord. No. 7-2004), adopts the Uniform Construction Code by reference, "as amended from time to time," as the Municipal Construction Code of the Township; its only amendment to the code's permit rules adds a documents requirement on accessibility, and it leaves fees to resolution. No section of the Township Code read names roof work as permit work or as exempt. Chapter 203 adopts the Uniform Construction Code "as amended from time to time," and the Township's pages name no code edition.
Permit process
No Colebrookdale Township text read names reroofing as permit work or as exempt. The Township's 2026 fee schedule (Resolution No. 1-4-26) prices residential building permits for new construction, additions, garages and decks, pools, demolition and "Renovations, Alterations, Modification, and where none of the above categories apply," and has no roofing or reroofing line. The Township's permit application lists "Renovation" and "Repair" among its types of work and names no roof work, and the Township's pages do not name reroofing either way. Chapter 203 of the Township Code, Construction Codes, Uniform (Ord. No. 7-2004), adopts the Uniform Construction Code by reference, "as amended from time to time," as the Municipal Construction Code of the Township; its only amendment to the code's permit rules adds a documents requirement on accessibility, and it leaves fees to resolution. No section of the Township Code read names roof work as permit work or as exempt. 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." Because the Township's only general permit clause is the state code's own, adopted by reference, and neither the Township nor LTL Consultants has published a statement on reroofs for the Township, this record does not decide whether the Township requires a permit for an ordinary reroof; ask LTL Consultants (610-987-9290) or the Township office (610-369-1362) before starting. The application says "Building and zoning permits are valid for one year from the date of issue," and Section 203-8 sets a fine of "not more than $600, plus court costs and reasonable attorneys' fees" for a violation. Read for this answer: Chapter 203 of the Township Code, Construction Codes, Uniform (Sections 203-1 to 203-11), in full; every page of a search of the whole Township Code for "roof" and for "reroofing"; Chapter 540, Zoning, which points to the joint zoning ordinance with Pike Township and Boyertown Borough, and a search of that ordinance for "reroofing"; the Township's Permits and Forms and Ordinance and Fee Schedule pages; the 2026 fee schedule (Resolution No. 1-4-26); and the Township's Zoning and Building Permit Application.