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Permitting Authorities / Texas / City of Murphy - Permits & Inspections, Development Services

Do you need a permit to replace a roof in Murphy, TX?

Adopted code

City of Murphy - Permits & Inspections, Development Services

The Building Inspection division of the City of Murphy's Development Services Department issues building permits and performs inspections for houses in Murphy, from City Hall at 206 N. Murphy Road. Murphy sits in Collin County, and the codes the city has adopted are cited below from the city's own pages. This listing covers the office's contact details, the city's adopted codes and the items cited below; it does not cover every local permit rule in Murphy.

Roof code checklist: Murphy, TX

ItemAnswerCode citeSourceVerified
Permit to replace a roofNot published
Repair permit thresholdNot published
Layer limit / roof-overPublishedR908.3.1.1murphytx.org2026-10-17
Deck & sheathingNot published
Drip edgeYesR905.2.8.5murphytx.org2026-10-17
Ice & water shieldNomurphytx.org2026-10-17
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNomurphytx.org2026-10-17
Wind design criteriaPublishedmurphytx.org2026-10-17
Adopted codePublishedmurphytx.org2026-10-17
Contractor license / registrationYesmurphytx.org2026-10-17
Sales & use taxPublishedcomptroller.texas.gov2026-10-17

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
City of Murphy, Texas
Jurisdiction type
city
Address
206 N. Murphy Road, Murphy, TX 75094
Contact
  • url: https://www.murphytx.org/66/Permits-Inspections
  • phone: 972-468-4100
Permit portal
Permit portal
Contractor registration required
Required
Permit process note
The City of Murphy's When a Permit Is Required page states "Permits are also required for other improvements to your property" and lists "Re-roofing" among its examples. The City's published 2021 Residential Code amendments change Section R105.2 (work exempt from permit) to include "Shingle replacement up to 25% of a roof area." The same amendments add to Section R105.3: "To obtain a permit the applicant shall be registered as a contractor," with the exception that homeowners may obtain permits for work at their own residence without being registered.
Adopted code
The City of Murphy Building Codes page states: "The City of Murphy adopted the 2021 editions of the International Building Codes and the 2020 version of the National Electric Code. The effective date of these codes is March 1, 2024." It lists the 2021 International Residential Code (IRC) and links the City's published "Recommended Amendments to the 2021 International Residential Code" document.
Drip edge
Required — Drip edge is required at eaves and rake edges of shingle roofs (IRC R905.2.8.5). The City adopted the 2021 International Residential Code with the local amendments in its published 2021 IRC amendments document (effective March 1, 2024 per the City's Building Codes page); that instrument, read in full, does not amend R905.2.8.5, so the code's drip-edge requirement stands as enacted local law. About drip edge
Ice & water shield
Not required — Table R301.2 (1), as filled in by the City of Murphy's published 2021 IRC amendments, enters "No" in the ice barrier underlayment column. About ice & water barrier
Impact-resistant roofing
Not required — The City of Murphy's published 2021 IRC amendments document, read in full, contains no UL 2218, Class 4 or impact-resistance provision for roofing, and makes no change to the roof covering requirements of Chapter 9.
Wind design criteria
Table R301.2 (1), as filled in by the City of Murphy's 2021 IRC amendments ("Table R301.2 (1); fill in as follows"): Wind Design Speed 115 mph (3 second gust) / 76 fastest mile; topographic effects No; special wind region No; windborne debris zone No.
Roof layer limit / recover
The City's published 2021 IRC amendments document, read in full, does not amend the reroofing section (R908), so the adopted IRC's own rule applies: a roof recover is barred "Where the existing roof has two or more applications of any type of roof covering" (R908.3.1.1). One existing layer may be recovered; a second forces tear-off.
Sales & use tax
8.25% combined (6.25% state + 1.75% City of Murphy + 0.25% special-purpose district (Murphy Mun Dev Dist)), per the Comptroller's local sales tax rate file. Comptroller Publication 94-116, Real Property Repair and Remodeling, states that "Labor to repair, remodel, or restore residential real property is not taxable" and that under a lump-sum contract "you pay tax on all your supplies, materials, equipment, and taxable services when you buy them. You don't charge your customer tax." On a lump-sum residential re-roof the rate therefore falls on the roofer's material purchases, not on the homeowner's contract price.

Local roofing hub

Roofing in Murphy, TexasCity hub

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Sources

Roofing questions: Murphy, TX

Is ice & water shield required in Murphy, TX?

No. Table R301.2 (1), as filled in by the City of Murphy's published 2021 IRC amendments, enters "No" in the ice barrier underlayment column.

Is drip edge required in Murphy, TX?

Yes. Drip edge is required at eaves and rake edges of shingle roofs (IRC R905.2.8.5). The City adopted the 2021 International Residential Code with the local amendments in its published 2021 IRC amendments document (effective March 1, 2024 per the City's Building Codes page); that instrument, read in full, does not amend R905.2.8.5, so the code's drip-edge requirement stands as enacted local law.

Can you roof over an existing roof in Murphy, TX?

The City's published 2021 IRC amendments document, read in full, does not amend the reroofing section (R908), so the adopted IRC's own rule applies: a roof recover is barred "Where the existing roof has two or more applications of any type of roof covering" (R908.3.1.1). One existing layer may be recovered; a second forces tear-off.

Do roofing contractors need a license or registration in Murphy, TX?

Yes.

What building code does Murphy, TX use?

The City of Murphy Building Codes page states: "The City of Murphy adopted the 2021 editions of the International Building Codes and the 2020 version of the National Electric Code. The effective date of these codes is March 1, 2024." It lists the 2021 International Residential Code (IRC) and links the City's published "Recommended Amendments to the 2021 International Residential Code" document.