Replace Roof: Everything You Need to Know
When to replace your roof, how much it costs, the complete process, and whether to DIY or hire a professional.
Expert guide from Weather Shield Roofing - Myrtle Beach's highest-rated roofing contractor with 15+ years experience and 73 five-star reviews.
What's In This Guide
Deciding to replace your roof is one of the biggest investments you'll make as a homeowner. Whether your roof is showing its age, you've noticed leaks, or you're preparing your home for sale, understanding the process helps you make informed decisions and avoid costly mistakes.
This comprehensive guide covers everything you need to know: the warning signs that indicate it's time to replace your roof, realistic costs for the Myrtle Beach area, the complete replacement process from inspection to final cleanup, and whether you should attempt a DIY replacement or hire a professional.
At Weather Shield Roofing, we've helped thousands of coastal South Carolina homeowners replace their roofs over the past 15 years. We've seen what works, what fails, and what questions homeowners ask most. This guide shares that expertise to help you make the best decision for your home.
7 Warning Signs You Need to Replace Your Roof
Not sure if your roof needs replacement? Here are the key indicators that it's time to act. If you notice multiple signs, schedule a professional inspection immediately.
Roof Age Over 20 Years
High PriorityAsphalt shingle roofs typically last 20-25 years. In coastal areas like Myrtle Beach, expect 15-20 years due to salt air and humidity. If your roof is approaching this age, it's time for a professional inspection.
Curling or Buckling Shingles
High PriorityShingles that curl at the edges or buckle in the middle indicate aging and weathering. This allows water infiltration and signals the shingles have lost their protective granules.
Missing Shingles
High PriorityMissing shingles expose your roof deck to water damage. A few missing shingles may be repaired, but widespread loss indicates it's time to replace the entire roof.
Granules in Gutters
MonitorFinding excessive granules in your gutters signals advanced shingle wear. Granules protect shingles from UV rays - without them, shingles deteriorate rapidly.
Daylight Through Roof Boards
UrgentIf you can see daylight through your roof boards from the attic, water can get in too. This indicates serious structural damage requiring immediate replacement.
Sagging Roof Deck
UrgentA sagging roof is a structural emergency. It indicates the decking is compromised from moisture damage or inadequate support. Don't delay - this needs immediate attention.
Water Stains or Leaks
High PriorityWater stains on ceilings or walls indicate roof failure. Multiple leaks in different areas suggest systemic roof problems rather than isolated repairs.
Moss or Algae Growth
MonitorWhile common in humid coastal climates, excessive moss holds moisture against shingles, accelerating deterioration. In Myrtle Beach, this is especially problematic.
Not Sure? Get a Professional Opinion
Many roofing problems aren't visible from the ground. Weather Shield Roofing offers free, no-obligation roof inspections that include a thorough examination of your roof exterior, attic, and ventilation system. We'll give you an honest assessment - sometimes repairs are all you need.
Learn about our inspection processReplace Roof vs Repair: Making the Right Decision
Should you repair or fully replace? This decision depends on damage extent, roof age, and long-term costs. Here's how to decide:
When to Repair
- Damage is localized to a small area (under 30%)
- Roof is less than 10-15 years old
- Just a few missing or damaged shingles
- Minor flashing issues around vents
- No structural or decking damage
When to Replace
- Roof is 15-20+ years old (coastal) or 20-25+ (inland)
- Widespread damage affecting 30%+ of roof
- Multiple leaks in different locations
- Sagging roof deck or structural issues
- Repair costs exceed 30-50% of replacement cost
The 30% Rule
Industry standard: If repair costs exceed 30% of a full replacement cost, replacement is usually the smarter financial decision. You get a complete new roof with full warranties instead of paying significant money to extend an aging roof by just a few years.
How Much Does It Cost to Replace a Roof in 2025?
Roof replacement costs vary based on size, materials, and complexity. Here's what Myrtle Beach homeowners typically pay:
Small Home (1,000-1,500 sq ft)
Budget-Friendly
Architectural Shingles
Average Home (2,000-2,500 sq ft)
Most Popular
Get Free Quote
Large Home (3,000+ sq ft)
Custom Quote
Varies by complexity
What's Included in the Cost?
Materials (40-50%)
- • Shingles or chosen roofing material
- • Underlayment (synthetic or felt)
- • Ice and water shield
- • Flashing, drip edge, fasteners
- • Ridge caps and ventilation
Labor (40-50%)
- • Tear-off and disposal
- • Deck inspection and repairs
- • Installation of all components
- • Cleanup and final inspection
- • Warranty registration
Myrtle Beach Pricing Note
Coastal areas typically cost 10-15% more than inland locations due to stricter building codes, hurricane-rated materials, and specialized installation requirements. However, this investment provides critical protection against our unique weather challenges.
The Complete Roof Replacement Process
Understanding what to expect helps you prepare for your roof replacement. Here's the step-by-step process from start to finish:
Initial Inspection & Assessment
1-2 hoursA professional inspector examines your roof from the exterior and attic. They document damage, measure roof dimensions, assess the deck condition, and identify any structural issues. This determines whether you need a full replacement or repairs.
Material Selection & Quote
1-3 daysBased on the inspection, you'll receive material recommendations suited to your budget, climate needs, and aesthetic preferences. Get detailed quotes with itemized costs for materials, labor, and any necessary repairs.
Permits & Scheduling
3-7 daysYour contractor handles permit acquisition from local building departments. In South Carolina, permits are required for full roof replacements. The project is scheduled based on weather conditions and material availability.
Material Delivery
Day before installRoofing materials are delivered to your property, typically the day before or morning of installation. Materials are staged on your roof or driveway for efficient access during installation.
Tear-Off Old Roofing
4-6 hoursThe crew removes existing shingles, underlayment, and flashing. Tarps protect your landscaping and property. All debris is collected for disposal. This reveals the deck for inspection.
Deck Inspection & Repairs
1-3 hours (varies)With the old roof removed, the deck is inspected for rot, damage, or soft spots. Any compromised decking is replaced with new plywood or OSB. This is crucial for a solid foundation.
Install Underlayment & Flashing
2-4 hoursIce and water shield is applied to vulnerable areas (valleys, edges, around penetrations). Synthetic underlayment covers the entire deck. New flashing is installed around chimneys, vents, and walls.
Shingle Installation
4-8 hoursStarting from the bottom edge, shingles are installed row by row according to manufacturer specifications. Ridge caps, hip shingles, and ventilation are properly installed.
Final Inspection & Cleanup
1-2 hoursThe crew performs a thorough cleanup using magnetic nail sweepers and inspects the finished roof. A final walkthrough ensures your satisfaction. Warranty paperwork is completed.
Replace Roof Yourself? DIY vs Hiring a Professional
While DIY roof replacement is technically possible, there are critical factors to consider—especially for coastal homes.
DIY Considerations
Potential Benefits:
- • Save on labor costs (40-50% of project)
- • Control over timeline and pace
- • Personal satisfaction
Serious Risks:
- • Fall injuries (roofing is one of most dangerous jobs)
- • Improper installation causing leaks
- • Voided material warranties
- • Code violations and permit issues
- • Insurance claim complications
- • Time commitment (5-10x longer than pros)
Professional Installation
Key Benefits:
- • Proper hurricane-rated installation
- • Full manufacturer warranties honored
- • Workmanship guarantees
- • Completed in 1-3 days vs weeks
- • Proper permit handling
- • Insurance and liability coverage
- • Code-compliant installation
Investment:
- • Labor adds 40-50% to material cost
- • But warranty protection saves long-term
Our Strong Recommendation for Coastal Homes
We strongly advise against DIY roof replacement in the Myrtle Beach area. Our coastal building codes require specific installation methods for hurricane resistance that most DIY installations fail to meet. Improper installation can void your homeowner's insurance coverage for wind damage—exactly when you need it most. The risks simply outweigh the savings.
Best Materials for Roof Replacement
Your material choice affects cost, lifespan, and performance. Here's how the most common options compare for coastal South Carolina:
Asphalt Shingles (3-Tab)
Pros:
- Most affordable option
- Easy to install and repair
- Wide color selection
Cons:
- Shortest lifespan
- Lower wind resistance
- Not ideal for coastal areas
Best For: Budget-conscious homeowners, rental properties, temporary solutions
Architectural Shingles
Pros:
- Better durability
- Attractive dimensional look
- Good hurricane resistance
Cons:
- Higher cost than 3-tab
- Still asphalt-based
Best For: Most homeowners - best balance of cost and performance
Metal Roofing
Pros:
- Longest lifespan
- Best hurricane resistance
- Energy efficient
- Salt-resistant options
Cons:
- Higher upfront cost
- Requires skilled installation
- Can be noisy in rain
Best For: Coastal homes, long-term investment, hurricane zones
Clay/Concrete Tile
Pros:
- Extremely durable
- Fire resistant
- Classic aesthetic
Cons:
- Heavy - may require structural reinforcement
- Expensive installation
Best For: Mediterranean-style homes, luxury properties
Our Recommendation
For most Myrtle Beach homeowners, architectural shingles offer the best balance of cost, durability, and hurricane protection. About 90% of our customers choose this option. For homes within 1,500 feet of the ocean or those wanting maximum longevity, metal roofing is the premium choice with 50-70 year lifespan and superior salt resistance.
Coastal Roofing: Special Considerations for Myrtle Beach
Living near the coast presents unique roofing challenges. Understanding these helps you make better decisions and extends your roof's lifespan.
Salt Air Corrosion
Salt particles from ocean air corrode metal components and accelerate shingle degradation. Homes within 1,500 feet of the ocean face the highest risk.
Our Solution:
Use corrosion-resistant fasteners, upgraded flashing, and salt-rated materials. Metal roofs should be aluminum or galvalume-coated.
Hurricane-Force Winds
Myrtle Beach is in a hurricane zone. Standard installations may fail in high winds, leading to catastrophic damage during storms.
Our Solution:
Choose materials rated for 130+ mph winds. We use enhanced nailing patterns, high-wind underlayment, and properly sealed edges per coastal building codes.
High Humidity & Algae
Our 70-80% humidity promotes algae and moss growth, which traps moisture against shingles and accelerates deterioration.
Our Solution:
Install algae-resistant shingles with copper granules. Ensure proper attic ventilation to reduce moisture buildup. Regular cleaning extends roof life.
Intense UV Exposure
Strong Southern sun breaks down roofing materials faster than northern climates. Expect 25-30% shorter lifespan on asphalt shingles.
Our Solution:
Choose lighter colored shingles that reflect more heat. Metal roofing with reflective coatings offers the best UV resistance and energy savings.
Coastal Roof Lifespan Reality
Myrtle Beach roofs age 25-30% faster than inland roofs. An asphalt shingle roof that lasts 25 years in Columbia may only last 15-20 years here. This isn't a manufacturing defect—it's the harsh reality of coastal exposure. Plan for replacement accordingly and choose materials rated for our environment.
How to Choose a Roofing Contractor
Choosing the right contractor is as important as choosing the right materials. Here's what to look for and what to avoid:
Green Flags (What to Look For)
- 10+ years in business - Stability matters in roofing
- Licensed and insured - Ask for proof
- Manufacturer certifications - GAF, Owens Corning, etc.
- Strong online reviews - Check Google, BBB
- Physical local address - Not a P.O. Box
- Detailed written estimates - Itemized costs
- Workmanship warranty - In addition to material warranty
Red Flags (What to Avoid)
- Door-to-door solicitation after storms - Storm chasers
- "We'll cover your deductible" - Insurance fraud
- Full payment upfront - Standard is 10-50% deposit
- No written contract - Everything should be documented
- Dramatically lower quote - Cutting corners somewhere
- High-pressure tactics - "Sign today only"
- No physical office - Hard to find if problems arise
Why Homeowners Choose Weather Shield Roofing
Frequently Asked Questions About Roof Replacement
Get answers to the most common questions homeowners ask when replacing their roof.
How long does it take to replace a roof?
Most residential roof replacements in Myrtle Beach take 1-3 days depending on roof size, complexity, and weather. A typical 2,000 sq ft roof with architectural shingles can often be completed in 1-2 days by an experienced crew. Larger or more complex roofs with multiple stories, steep pitches, or extensive repairs may take 3-5 days.
Can you replace a roof in one day?
Yes, many standard residential roofs can be replaced in a single day. Weather Shield Roofing regularly completes 1,500-2,500 sq ft roofs in one day with our experienced crews. However, factors like roof complexity, weather conditions, and unexpected repairs (rotted decking) can extend the timeline. We never rush quality for speed.
How much does it cost to replace a roof?
Roof replacement costs vary based on roof size, material choice, pitch, and complexity. Every home is unique, which is why we provide free, detailed estimates tailored to your specific needs. Metal roofing costs more upfront but lasts 50-70 years. Contact us at (843) 877-5539 for a free, no-obligation quote for your home.
Should I stay home during roof replacement?
You don't have to stay home, but many homeowners prefer to be present. The process is noisy - you'll hear hammering, power tools, and debris falling. If you work from home, consider scheduling important calls for another day. Pets should be kept indoors or away from the property. We'll communicate progress and let you know when we need access.
How often should a roof be replaced?
The replacement frequency depends on your roofing material. Asphalt shingles last 20-25 years (15-20 in coastal areas), architectural shingles 25-30 years, and metal roofing 50-70 years. In Myrtle Beach, roofs age 25-30% faster due to salt air, UV exposure, humidity, and hurricane winds. Have your roof inspected annually after 10 years.
What time of year is best to replace a roof?
In South Carolina, fall (September-November) offers ideal conditions - moderate temperatures, lower humidity, and less rain. Spring (March-May) is also excellent. Summer works but extreme heat can affect shingle installation. Winter is possible in our mild climate but may have scheduling delays. Avoid scheduling during hurricane season peak (August-October) if possible.
Does replacing a roof increase home value?
Yes! A new roof typically offers 60-70% return on investment and can significantly increase your home value. In the competitive Myrtle Beach real estate market, a new roof is a major selling point. It also helps your home sell faster and can prevent deal-breakers during inspection.
Can you replace a roof over existing shingles?
Technically yes (called a "roof-over"), but we don't recommend it. While it's cheaper initially, it voids many warranties, adds weight stress to your structure, hides underlying damage, and won't last as long. South Carolina allows a maximum of 2 shingle layers, but for best results, we always recommend a complete tear-off.
How do I know if I need a new roof?
Key signs include: roof age over 15-20 years, curling or missing shingles, granules in gutters, daylight visible through attic boards, water stains or leaks, sagging roof deck, and neighbors getting new roofs (if homes were built at the same time). Weather Shield Roofing offers free inspections - call (843) 877-5539 for an honest assessment.
What does insurance cover for roof replacement?
Homeowners insurance covers roof replacement when damage results from covered events: storms, hail, falling trees, fire, and hurricane damage. It does NOT cover normal wear and tear, age-related deterioration, or neglected maintenance. Weather Shield Roofing works directly with insurance companies to document damage and maximize your claim.
Can I replace my roof myself?
While DIY is possible for skilled homeowners, we strongly advise against it for coastal homes. Risks include: personal injury from falls (roofing is one of the most dangerous jobs), improper installation leading to leaks, voided warranties, code violations, and potential insurance issues. Professional installation ensures proper hurricane protection and workmanship guarantees.
Why do Myrtle Beach roofs wear out faster?
Coastal roofs face unique challenges: salt air corrosion (especially within 1,500 feet of the ocean), intense UV exposure, 70-80% humidity promoting algae growth, hurricane-force winds, and heavy seasonal rains. A roof that lasts 25 years in Columbia may only last 15-20 years in Myrtle Beach. That's why material choice and proper installation are critical here.
Ready to Replace Your Roof?
Get a free, no-obligation inspection and detailed estimate from Weather Shield Roofing. We'll give you honest advice on whether you need to replace or if repairs will do.
Free Inspection
Complete roof & attic assessment
Detailed Estimate
Itemized, transparent pricing
No Pressure
Honest advice, your decision
Serving Myrtle Beach, North Myrtle Beach, Conway, Surfside Beach, Garden City, Pawleys Island, Carolina Forest, and all of Horry County, SC.