Do you need a permit to replace a roof in Oconomowoc, WI?

Roofing questions: Oconomowoc, WI

Do you need a permit to replace a roof in Oconomowoc, WI?

Yes, a permit is required to replace a roof in Oconomowoc, WI. A REROOF NEEDS A PERMIT IN OCONOMOWOC AND THE FEE SCHEDULE PRICES IT BY VALUATION, WHICH MATTERS MORE THAN IT SOUNDS. The 2026 City permit fee schedule, under "Building Permit Fees: Residential - One & Two Family," carries a line reading "Roofing $8.00 per $1,000 of valuation," directly above the identical "Siding" line and in the same block as "Remodel $8.00 per $1,000 of valuation, $50.00 minimum." The same block prints "Minimum Fees $50.00" and "Minimum Building Permit $100.00." So unlike the flat reroofing fees that several Wisconsin municipalities charge, an Oconomowoc roofing permit scales with the contract value - carry it as a line in the estimate rather than as a fixed cost. The ordinance behind it is Municipal Code Section 14.101(6)(a), "Permits Required," under which a one- or two-family dwelling may not "be built, enlarged or repaired unless a building permit for that work shall first be obtained by the owner or his/her agent from the Building Inspector," on the Wisconsin Uniform Dwelling Permit application form. THERE IS NO DOLLAR OR SQUARE-FOOT REPAIR EXEMPTION IN CHAPTER 14 - the chapter publishes no exempt-work list at all - so the permit question is not answered by a threshold here. GETTING IT WRONG COSTS DOUBLE: Section 14.101(8)(e) provides that if work governed by the section or the dwelling code "is commenced prior to the issuance of a permit, double fees shall be charged." One further condition that can hold up an unrelated permit: Section 14.11(8) provides that no building permit shall issue "until all required connections have been made and all development fees and special assessments levied against the property have been paid or arrangements have been made with the City for payment."

Is ice & water shield required in Oconomowoc, WI?

Yes. STATE-SET AND SLOPE-CONDITIONED - read the trigger carefully, because it is narrower than the International Residential Code rule used in most other states. Wis. Admin. Code SPS 321.28(4)(a) requires that "Shingled or shake roofs that extend over a heated area of a dwelling or attached garage and that have a slope of 4:12 or less shall be provided with ice dam protection in the form of sheet metal or a product labeled as meeting the requirements of ASTM D 1970." SPS 321.28(4)(b) sets the extent: the protection "shall extend at least 30 inches up the roof slope from the roof edge and at least 12 inches up the roof slope beyond the inner face of the exterior wall." The trigger is the roof slope, not the climate zone or a design temperature, so a roof steeper than 4:12 is not covered by the requirement at all - although the shingle manufacturer's instructions may still call for it, and SPS 321.28(3)(a)3. makes those instructions binding for asphalt shingles. Oconomowoc adds nothing to this - Chapter 14 of the Municipal Code was read in full and contains no ice barrier or ice dam provision. ONE SCOPE POINT THAT APPLIES TO EVERY WISCONSIN REROOF AND IS NOT SETTLED. The uniform dwelling code sets these roofing rules statewide, but it does not reach every house and it may not reach every job. SPS 320.05(1) provides that the code does not apply to dwellings "the construction of which was commenced prior to the effective date of this code, or to additions or alterations to such dwellings" - the code took effect June 1, 1980, and the enabling statute, Wis. Stat. 101.615, draws the line differently again, at a dwelling "the initial construction of which was commenced on or after December 1, 1978." Both dates are reported here because the statute and the rule state the cut-off differently. SPS 320.05(3) separately provides that the code does not apply "to repairs or maintenance to dwellings or dwelling units," and SPS 320.07(61) defines a repair to include "the replacement of existing fixtures, systems or equipment with the equivalent fixture, system or equipment," which is a fair description of a like-for-like tear-off. Against that, SPS 321.28(6) regulates reroofing by name, and SPS 320.04(2) applies the whole code to alterations of a dwelling it covers. Wisconsin has not resolved that tension, and this record does not resolve it either. Ask the building inspector which side of it your job falls on before pricing the work. A municipality may also adopt chs. SPS 320 to 325 to reach additions and alterations to older dwellings, which closes half the question locally. OCONOMOWOC IS THE ONE JURISDICTION IN THIS DIRECTORY THAT WRITES THAT VINTAGE LINE INTO ITS OWN ORDINANCE, AND IT USES A THIRD DATE. Municipal Code Section 14.101(3) defines a dwelling, for the purposes of the section that adopts and enforces the uniform dwelling code, as "Any building, the initial construction of which is commenced on or after the effective date of this section, which contains one- or 2-dwelling units," and Section 14.101(6)(a) attaches the permit requirement to "No one- or 2-family dwellings of which initial construction shall be commenced after May 29, 1980." That is a THIRD date for the same idea: the state rule SPS 320.05(1) turns on the code effective date of June 1, 1980, the enabling statute Wis. Stat. 101.615 on initial construction commenced on or after December 1, 1978, and this section on May 29, 1980. The same section also defines an alteration as "A substantial change or modification other than an addition or minor repair to a dwelling or systems involved within a dwelling." WHAT THIS RECORD DOES NOT DO IS DECIDE WHAT FOLLOWS FOR AN OLDER HOUSE. The City charges a residential roofing permit fee without any vintage qualifier on its published fee schedule, and Chapter 14 publishes no exempt-work list, so the practical position and the literal words of Section 14.101(6)(a) are not obviously the same. Ask the Building Inspection Division before assuming either answer on a house built before 1980.

Is drip edge required in Oconomowoc, WI?

No. No drip edge is required by code here, and the reason is that Wisconsin never adopted the International Residential Code rule that most other states rely on for it. SPS 321.28, "Weather protection for roofs," was read in full - general drainage and fasteners, underlayment for shingles, asphalt shingles, ice dam protection, other roof coverings, reroofing, and every flashing paragraph - and no provision requires a drip edge at an eave or a rake. The only drip-edge language anywhere in the Wisconsin dwelling construction chapter is a masonry chimney cap rule, which is not a roof-edge requirement. PRACTICAL POINT FOR A BID: drip edge may still be required as a matter of the shingle manufacturer's printed instructions, and SPS 321.28(3)(a)3. makes those instructions binding for asphalt shingles, so read the wrapper before leaving it off. On the City side, Chapter 14 of the Municipal Code was read in full and the words drip edge do not appear in it, and neither does any other roof-edge or roof-flashing requirement. The only roof-related local rule is a drainage one - Section 14.11(7) requires storm and rain water to be conducted from the roof of every building in an approved manner, to grade or to a storm sewer where required.

Can you roof over an existing roof in Oconomowoc, WI?

STATE-SET. Oconomowoc writes no reroofing layer rule of its own - Municipal Code Chapter 14, "Building Regulations," was read in full, all thirty-seven of its sections across the administration, building code, plumbing code, electrical and swimming pool divisions, and it contains no layer limit, no recover rule and no shingle provision - so the statewide rule governs unmodified. The statewide rule is SPS 321.28(6), "REROOFING," which provides that new roof coverings may not be installed over existing roof coverings where any of three conditions exist: the existing roof or roof covering "is water-soaked or has deteriorated such that it is inadequate as a base for additional roofing"; the existing roof "is wood shake, slate, clay, cement or asbestos-cement tile"; or the existing roof "has 2 or more applications of any type of permanent roof covering." So the ceiling is two total layers, and fewer than that where the deck is wet or deteriorated or the existing covering is one of the listed materials. A complete tear-off to the deck is not restricted by that rule at any layer count. There is no local route past two layers, so a roof already carrying two applications is a tear-off in Oconomowoc. ONE SCOPE POINT THAT APPLIES TO EVERY WISCONSIN REROOF AND IS NOT SETTLED. The uniform dwelling code sets these roofing rules statewide, but it does not reach every house and it may not reach every job. SPS 320.05(1) provides that the code does not apply to dwellings "the construction of which was commenced prior to the effective date of this code, or to additions or alterations to such dwellings" - the code took effect June 1, 1980, and the enabling statute, Wis. Stat. 101.615, draws the line differently again, at a dwelling "the initial construction of which was commenced on or after December 1, 1978." Both dates are reported here because the statute and the rule state the cut-off differently. SPS 320.05(3) separately provides that the code does not apply "to repairs or maintenance to dwellings or dwelling units," and SPS 320.07(61) defines a repair to include "the replacement of existing fixtures, systems or equipment with the equivalent fixture, system or equipment," which is a fair description of a like-for-like tear-off. Against that, SPS 321.28(6) regulates reroofing by name, and SPS 320.04(2) applies the whole code to alterations of a dwelling it covers. Wisconsin has not resolved that tension, and this record does not resolve it either. Ask the building inspector which side of it your job falls on before pricing the work. A municipality may also adopt chs. SPS 320 to 325 to reach additions and alterations to older dwellings, which closes half the question locally. OCONOMOWOC IS THE ONE JURISDICTION IN THIS DIRECTORY THAT WRITES THAT VINTAGE LINE INTO ITS OWN ORDINANCE, AND IT USES A THIRD DATE. Municipal Code Section 14.101(3) defines a dwelling, for the purposes of the section that adopts and enforces the uniform dwelling code, as "Any building, the initial construction of which is commenced on or after the effective date of this section, which contains one- or 2-dwelling units," and Section 14.101(6)(a) attaches the permit requirement to "No one- or 2-family dwellings of which initial construction shall be commenced after May 29, 1980." That is a THIRD date for the same idea: the state rule SPS 320.05(1) turns on the code effective date of June 1, 1980, the enabling statute Wis. Stat. 101.615 on initial construction commenced on or after December 1, 1978, and this section on May 29, 1980. The same section also defines an alteration as "A substantial change or modification other than an addition or minor repair to a dwelling or systems involved within a dwelling." WHAT THIS RECORD DOES NOT DO IS DECIDE WHAT FOLLOWS FOR AN OLDER HOUSE. The City charges a residential roofing permit fee without any vintage qualifier on its published fee schedule, and Chapter 14 publishes no exempt-work list, so the practical position and the literal words of Section 14.101(6)(a) are not obviously the same. Ask the Building Inspection Division before assuming either answer on a house built before 1980.

Do roofing contractors need a license or registration in Oconomowoc, WI?

Yes.

What building code does Oconomowoc, WI use?

THE CITY ADOPTS THE STATE CODES BY REFERENCE, AND ITS DWELLING ADOPTION IS FLOATING RATHER THAN FROZEN TO AN EDITION. Municipal Code Section 14.101(2), "STATE UNIFORM DWELLING CODE ADOPTED," provides that the administrative code provisions "with respect to one- and 2-family dwellings in Chs. SPS 320-325, Wis. Adm. Code, are hereby adopted and by reference made a part of this section as if fully set forth herein," and that "Any future amendments, revisions or modifications of such chapters are intended to be made part of this section to secure uniform statewide regulation of one- and 2-family dwellings in the City and in the state." So for a house there is no local edition year to chase - the currently published text of chs. SPS 320 to 325 governs. THE COMMERCIAL SIDE IS DIFFERENT AND IS EDITION-DATED, SO DO NOT CARRY ONE ANSWER ACROSS TO THE OTHER. Section 14.10, "CODES ADOPTED," amended by Ordinance #21-O1009, adopts SPS 316 in its entirety for electrical work, the Wisconsin Commercial Building Code chapters SPS 360 to 366 with appendices A and B, and by name the 2015 editions of the International Building Code, International Energy Conservation Code, International Mechanical Code, International Fuel Gas Code and International Existing Building Code, each "with Wisconsin Amendments." Those are commercial instruments; a one- or two-family reroof in Wisconsin runs on the state dwelling code, not on the International Residential Code, which the City does not adopt at all. Section 14.10 also requires that the inspectors enforcing these codes be certified by the Wisconsin Department of Safety and Professional Services "in both UDC and non-UDC (including commercial) and other categories." The City Code is codified through Ordinance No. 25-O1112, enacted December 2, 2025. A NOTE ON WHERE LOCAL AUTHORITY STOPS, BECAUSE WISCONSIN DRAWS THAT LINE HARDER THAN MOST STATES. Wis. Stat. 101.65(1) lets cities, villages, towns and counties exercise jurisdiction over the construction and inspection of new dwellings by ordinance, but 101.65(1c) provides that they "may not make or enforce an ordinance under sub. (1) that is applied to a dwelling and that does not conform to this subchapter and the uniform dwelling code." It then goes a step further than a plain preemption clause: if a contract between the municipality and an owner requires the owner to comply with a non-conforming ordinance, "the owner may waive the provision, and the provision, if waived, is void and unenforceable." So a local roofing rule that departs from the state dwelling code is not merely unenforceable against the municipality - the owner can strike it out of a contract.