What happens if you skip the permit (and you needed one)
- Stop-work orders in Murphy carry fines of $500–$1,500 and require you to pay double permit fees on re-pull plus remove unpermitted work.
- Homeowner's insurance may deny claims for water damage or structural failure if the roof was replaced unpermitted, leaving repair costs ($15,000–$50,000+) entirely on you.
- Texas Property Owners Association (TPOA) disclosure requirements mean unpermitted roof work must be revealed to future buyers; lenders often require proof of permitted work before refinance or sale.
- Code enforcement complaints from neighbors trigger inspections; if deck damage or improper fastening is found, the city can require full tear-off and reinstall to code (additional $3,000–$8,000).
Murphy roof replacement permits — the key details
The core rule is IRC R907.4: any roof with three or more existing shingle layers must be stripped to deck and replaced. During the inspection process, Murphy's Building Department staff will look for this during the deck-nailing inspection (typically scheduled within 48–72 hours of tear-off). If the inspector finds a third layer that wasn't disclosed in your permit application, the city will issue a stop-work order and require you to complete the tear-off before proceeding. This is the single most common rejection in Murphy. You do NOT need a structural engineer's report for a third-layer roof unless the deck shows significant rot or sag, but you must get written confirmation from your contractor that the existing structure is sound and suitable for re-roofing. Bring photos or video to your pre-permit meeting with the city if you've already had the roof inspected privately.
For material changes — moving from asphalt shingles to metal, tile, slate, or composite — Murphy requires a reroofing permit and a detailed material specification sheet that includes fastener type, underlayment type, wind rating (critical in Texas), and installation method. If you're upgrading to a hurricane-rated roof system (a common choice in central and north Texas given hail risk), submit the manufacturer's testing certification (typically FM Approvals or UL listing). The city will not issue a roofing permit without this documentation. Underlayment is non-negotiable: the IRC R905.2.7 standard in Texas requires a minimum synthetic or asphalt-saturated felt, but Murphy's inspectors often recommend — and some veteran contractors automatically install — a secondary water barrier (ice-and-water-shield equivalent) along the eaves and valleys, especially if your home is near the 4A panhandle zone where wind-driven rain penetration is a known hazard. This adds $0.50–$1.50 per square foot but prevents callbacks.
The exemption threshold is 25% of roof area or fewer than 10 roofing squares (roughly 1,000 square feet). A small patch of shingles covering, say, 500 square feet, does not require a permit if the existing roof has only one or two layers. However, the moment you tear off shingles to the deck to repair underlying damage, or if the repair exceeds 25% of the roof's total area, Murphy requires a permit. Many homeowners and contractors underestimate the scope of their project — a roof that looks like 'a few missing shingles' often becomes 40% area damage once you're up there. File a full reroofing permit to be safe; the permit fee ($100–$400, based on square footage and material) is cheaper than a stop-work order and double fees.
Inspection sequence in Murphy typically runs: (1) permit issuance and deck inspection scheduling (1–3 days), (2) deck-nailing and underlayment inspection (after tear-off, before new shingles), (3) final inspection (roof covering and trim). Each inspection must pass before you move to the next stage. Like-for-like shingle replacements with a licensed roofing contractor often clear in 2–3 weeks total; material changes or deck repairs can stretch to 4–5 weeks if structural issues are found. Bring your contractor to at least the deck-nailing inspection so the inspector can discuss any fastening or underlayment questions on-site.
Owner-builders can pull the permit themselves (Murphy allows this for owner-occupied single-family homes), but they must hire a licensed roofing contractor for the actual work — Texas Property Code § 1951.002 requires reroofing to be done by a licensed contractor regardless of who holds the permit. The City of Murphy enforces this strictly. If you're thinking of doing the work yourself, you'll need to hire a licensed roofer; the permit itself doesn't require a contractor license, but the installation does. Get a written scope and material spec from your contractor before filing, and upload it with your permit application to avoid delays.
Three Murphy roof replacement scenarios
Texas hail and wind zones: why Murphy's reroofing specs are stricter than you might think
Murphy sits in the collision zone between Central Texas hail alley and the DFW metroplex wind corridors. The National Weather Service tracks significant hail events (pea to grapefruit size) across Collin County roughly every 5–7 years. Because of this, many roofing contractors and insurance companies recommend a Class 4 Impact Rating (ASTM D3161) when replacing a roof, and Murphy's permit staff are increasingly aware of this. While the city does not mandate a Class 4 rating, they do require that you disclose your roofing material's impact rating and wind rating on the permit application.
When you file a reroofing permit in Murphy, include the manufacturer's UL or FM wind-rating certification (typically 110 mph minimum for asphalt shingles in Collin County, 150+ mph if upgrading). Metal roofing often exceeds 200 mph wind rating, which some homeowners discover qualifies them for a homeowner's insurance discount. Bring this documentation to your permit meeting; the city's inspectors will note it, and it may help if you need to file a claim later or refinance. The IRC R905 standard does not explicitly require high-impact shingles, but the Texas Insurance Code and many lender requirements do — so the permit and the insurance conversation are linked.
If you're upgrading materials or addressing a prior hail claim, mention this to the City of Murphy's permit staff. They often expedite the review because they recognize that a proactive upgrade reduces future storm-damage complaints and insurance claims in the city. It's not a guarantee, but transparency helps.
Underlayment and secondary water barriers: why Murphy inspectors require documentation
IRC R905.2.7 allows several underlayment types: asphalt-saturated felt, synthetic, or proprietary barriers. Murphy's inspectors typically approve all three, but in recent years, the city has seen increased water intrusion complaints on roofs that used felt without a secondary ice-and-water barrier in the eaves and valleys. Texas's hot-humid climate (especially north and central portions of Collin County) creates condensation and wind-driven rain scenarios that felt alone doesn't always handle.
Best practice in Murphy: use a synthetic or asphalt-saturated felt as the primary underlayment across the entire roof (cost ~$0.30–$0.60 per sq ft), then add ice-and-water shield along the eaves (typically 24 inches up from the exterior wall plane, per IRC R905.2.7.2) and in valleys (full valley, full thickness of the ice-and-water product). This is not legally required in Murphy, but it's the spec most veteran contractors submit with reroofing permits, and it virtually eliminates punch-list water-intrusion callbacks. Cost adder: $0.50–$1.50 per sq ft for the secondary barrier. If your permit application shows only felt and no secondary barrier, Murphy's inspectors often call the contractor to ask about it. Preempt this by including both products in your material spec at permit time.
The reason: Murphy has older homes (1970s–1990s builds) with cathedral ceilings and attic ventilation systems that are sometimes undersized. A water intrusion into the attic (via the roof-wall junction) can lead to mold complaints and code violations on the interior. The city wants to see that you're addressing this risk. Metal roofing systems often come with their own secondary barriers (synthetic or rubber underlayment specific to metal attachment), so if you're upgrading to metal, this is typically less of a concern — just confirm the material spec includes it.
Murphy City Hall, Murphy, TX 75094 (exact street address: confirm via city website or call)
Phone: (972) 468-7000 or (972) 468-7100 (roofing/building permits — verify current extension) | https://www.murphytexas.org/permits (Building permits section; online filing available for most projects)
Monday–Friday, 8:00 AM–5:00 PM (closed city holidays)
Common questions
Do I need a permit if I'm just replacing a few damaged shingles after a storm?
If the damage covers fewer than 10 roofing squares (about 1,000 sq ft, or less than 25% of your total roof), and you're not removing shingles down to the deck to repair underlying damage, you do not need a City of Murphy permit. However, if you discover deck rot or water damage under the shingles during the repair, or if the damage extends beyond 25% of the roof, the repair escalates to a full reroofing permit. Always get a contractor's written assessment before assuming the exemption applies.
My roofer says they can overlay new shingles over the existing ones instead of tearing off. Is that allowed in Murphy?
Only if your roof currently has one layer of shingles. IRC R907.4 forbids overlaying a roof that already has two or more layers — you must tear off to deck. Many contractors prefer overlaying because it's cheaper ($1–$3 per sq ft savings), but Murphy's inspectors will stop the work if they find a hidden second layer. You should require your contractor to provide written documentation (photos from attic or roof assessment) confirming only one existing layer before you approve an overlay. If there are two layers already, tear-off is mandatory, and the permit cost will reflect that.
How long does it take to get a roof replacement permit approved in Murphy?
For a straightforward like-for-like shingle replacement with a licensed contractor, permit approval typically takes 1–2 days after submission via the online portal. If there's a material change, tear-off requirement, or deck concerns, the timeline extends to 3–7 days. Once work begins, the city schedules inspections (deck-nailing and final) on a 48-hour notice basis, so the full project (permit to final inspection) usually takes 2–4 weeks. Material changes and third-layer tear-offs can push to 4–5 weeks.
Do I have to use a licensed roofing contractor, or can I do the work myself?
Texas Property Code § 1951.002 requires reroofing (any roof covering installation or replacement) to be performed by a licensed roofing contractor, even if you hold the permit yourself as a homeowner. You can pull the permit as the owner-builder for an owner-occupied single-family home in Murphy, but you must hire a licensed roofer to do the actual installation. The contractor is responsible for the work quality and code compliance.
What happens during the deck-nailing inspection?
During the deck-nailing inspection (after tear-off, before new shingles are installed), the city inspector verifies that the roof deck (plywood or OSB) is structurally sound, properly fastened, and ready for new covering. The inspector checks for rot, water damage, inadequate ventilation, and nail popping in existing deck. If the deck is damaged, you may need to replace sections before proceeding (additional cost $500–$2,000+). The inspector also reviews underlayment installation and fastener type to ensure compliance with IRC R905. This is your chance to address any defects before the new roof goes on.
Is there a specific underlayment type Murphy requires?
Murphy accepts asphalt-saturated felt, synthetic, or proprietary underlayment per IRC R905.2.7. However, many inspectors recommend adding a secondary ice-and-water barrier along eaves and valleys (not required by code, but best practice in Texas). Submit your underlayment type and secondary barrier plan with your permit application to avoid delays. If you're unsure, ask your contractor to include both products in the material spec.
What if my roof has more than two layers — does Murphy handle the tear-off differently?
If your roof has three or more existing layers, IRC R907.4 mandates a complete tear-off to deck. Murphy's Building Department will require you to disclose this in the permit application and will schedule a pre-tear-off inspection to document the condition. The tear-off process is the same as for a two-layer roof, but the inspection and permitting timeline may be slightly longer due to the additional documentation required. Always get a contractor's written confirmation of the existing layer count before filing.
Do I need a structural engineer's report if I'm upgrading to a heavier roofing material like metal or tile?
For most single-family homes in Murphy, no. Asphalt shingles typically weigh 2–4 lbs per sq ft, metal roofing 2–3 lbs per sq ft, and tile 8–12 lbs per sq ft. If you're upgrading to tile and your home was built before the 1990s, or if the contractor notes any concerns during the deck inspection, Murphy may request a structural engineer's evaluation (cost $500–$1,500). The city will indicate this during the deck-nailing inspection if needed. For metal, a structural evaluation is rarely required unless the existing roof framing is visibly compromised.
Can I file the permit myself, or does my contractor have to do it?
You can file the permit yourself as an owner-builder for an owner-occupied single-family home in Murphy, but your roofing contractor must provide the material specifications, proof of licensing, and be present for inspections. Most contractors prefer to file permits themselves because they manage the timelines and documentation. Discuss this with your contractor upfront — some include permit filing in their bid, others charge separately ($75–$150). If you file it yourself, the city will likely contact your contractor for additional information anyway, so factor that communication time into your plan.
What is the typical cost of a roofing permit in Murphy?
Murphy's roofing permit fees typically range from $100–$400, based on the roof's square footage and material type. Like-for-like shingle replacements on an average home (2,000–2,500 sq ft) usually run $150–$250. Material changes, tear-offs, or larger homes may push fees to $300–$400. Some cities in Texas charge a percentage of the project value (1.5–2%), but Murphy generally uses a square-footage scale. Confirm the exact fee with the Building Department before filing; fees may have been updated. This is separate from contractor labor and material costs.