Single Ply Membrane RoofingMyrtle Beach, SC
The most advanced flat roofing technology for coastal South Carolina. TPO, EPDM, and PVC single ply systems deliver hurricane resistance, superior energy efficiency, and 20-30 year lifespans. Trusted by 81+ commercial and residential customers with a perfect 5.0-star rating.
What is Single-Ply Membrane Roofing?
Single-ply membrane roofing represents the most significant advancement in flat and low-slope roofing technology over the past 50 years. Unlike traditional built-up roofing (BUR) that requires multiple layers of tar, gravel, and felt, single-ply systems consist of one flexible, factory-manufactured membrane sheet that creates a continuous, watertight barrier across your entire roof surface. This revolutionary approach has transformed commercial and residential flat roofing in Myrtle Beach and throughout coastal South Carolina.
The term "single-ply" refers to the membrane's construction as one complete layer, typically ranging from 45 to 90 mils thick (approximately 1/16 to 3/32 inch). These membranes are manufactured under controlled factory conditions, ensuring consistent quality and performance that field-applied systems simply cannot match. The three primary types of single-ply membranes are TPO (Thermoplastic Polyolefin), EPDM (Ethylene Propylene Diene Monomer), and PVC (Polyvinyl Chloride), each offering distinct advantages for different applications.
For Myrtle Beach property owners, single-ply membrane roofing addresses the unique challenges of our coastal environment exceptionally well. The seamless, heat-welded construction of TPO and PVC systems eliminates the weak points where traditional roofs fail first. EPDM's exceptional flexibility handles the thermal expansion and contraction caused by our 40-degree temperature swings between summer highs and winter lows. Most importantly, all single-ply systems resist the moisture infiltration, UV degradation, and salt-air corrosion that shorten roof lifespans along the Grand Strand.
Why Single-Ply Dominates Modern Flat Roofing
- Speed: Installation is 50-75% faster than built-up roofing, reducing labor costs and business disruption
- Weight: Single-ply weighs 0.25-0.50 lbs/sq ft versus 3-6 lbs/sq ft for BUR, reducing structural requirements
- Performance: Heat-welded seams are 4x stronger than the membrane itself, virtually eliminating leak points
- Reflectivity: White TPO and PVC reflect 70-85% of solar energy, cutting cooling costs 25-40%
Types of Single-Ply Roofing Systems
Weather Shield Roofing installs all three major single-ply membrane systems. Each offers unique advantages for different applications, budgets, and performance requirements.
TPO (Thermoplastic Polyolefin) Roofing
Most Popular Single-Ply Choice for Myrtle Beach
TPO roofing has dominated the single-ply market since the early 2000s, capturing over 40% of the commercial flat roofing market in the United States. This thermoplastic membrane combines the performance benefits of EPDM and PVC at a more affordable price point, making it the go-to choice for budget-conscious property owners who refuse to compromise on quality.
TPO membranes consist of a single layer of synthetics and reinforcing scrim that creates exceptional strength and flexibility. The membrane is heat-welded at seams using hot-air welding equipment, creating bonds that are actually stronger than the membrane material itself. This eliminates the adhesive failures and seam separations common in older roofing technologies. Modern TPO formulations have resolved early concerns about weathering and are now proven performers with 20-25 year track records.
TPO Advantages
- Excellent balance of cost and performance
- Energy Star rated reflective surface
- Heat-welded seams resist leaks
- Resists mold, algae, and dirt accumulation
- Flexible installation methods
- Environmentally friendly and recyclable
TPO Specifications
- Thickness: 45, 60, or 80 mil
- Lifespan: 20-25 years
- Colors: White, tan, gray (white most common)
- Seam Method: Hot-air welded
- Wind Rating: Up to 120 mph (properly installed)
- Best For: Commercial, light industrial, residential flat sections
EPDM (Ethylene Propylene Diene Monomer) Roofing
The Original Single-Ply - 50+ Years Proven Performance
EPDM, commonly known as "rubber roofing," pioneered the single-ply revolution in the 1960s and remains a trusted choice with the longest track record of any single-ply system. This synthetic rubber membrane has proven its durability with buildings in service for over 50 years, giving property owners confidence in long-term performance. EPDM's exceptional flexibility makes it ideal for buildings that experience significant thermal movement.
EPDM membranes are manufactured in large sheets up to 50 feet wide, minimizing the number of field seams required. The material's flexibility allows it to conform to irregular roof surfaces and handle building movement without cracking or splitting. While traditionally available in black (which absorbs heat), white EPDM options are now available for energy-conscious applications. EPDM remains the most cost-effective single-ply option, making it ideal for large commercial roofs where material cost significantly impacts project budget.
EPDM Advantages
- Longest proven track record (50+ years)
- Most affordable single-ply option
- Exceptional flexibility and elasticity
- Superior UV and ozone resistance
- Wide sheet sizes reduce seams
- Easy to repair and maintain
EPDM Specifications
- Thickness: 45, 60, or 90 mil
- Lifespan: 25-30 years (some exceed 40)
- Colors: Black (standard), white available
- Seam Method: Adhesive or tape
- Wind Rating: Excellent when mechanically attached
- Best For: Large commercial, warehouses, budget-conscious projects
PVC (Polyvinyl Chloride) Roofing
Premium Performance for Demanding Applications
PVC roofing represents the premium tier of single-ply membrane systems, offering the longest lifespan, best chemical resistance, and superior fire ratings. Developed in Europe in the 1960s with a proven 50+ year track record, PVC membranes are the preferred choice for restaurants, hospitals, manufacturing facilities, and any application where chemical exposure, grease, or demanding conditions exist. The material's inherent fire resistance (no added fire retardants needed) makes it ideal for buildings with strict fire codes.
Like TPO, PVC membranes feature heat-welded seams that create permanently watertight bonds. However, PVC's chemical composition provides superior resistance to oils, fats, and chemicals that would damage other roofing materials. This makes PVC essential for restaurant rooftops where kitchen exhaust vents release grease-laden air, or industrial facilities with chemical exposure. PVC also maintains flexibility at lower temperatures than TPO, an advantage during cool Myrtle Beach winter installations.
PVC Advantages
- Longest single-ply lifespan (25-35 years)
- Superior chemical and grease resistance
- Best fire resistance (self-extinguishing)
- Heat-welded seams for leak prevention
- Excellent cold weather flexibility
- Highly reflective for energy savings
PVC Specifications
- Thickness: 50, 60, or 80 mil
- Lifespan: 25-35 years
- Colors: White, tan, gray (custom available)
- Seam Method: Hot-air welded
- Fire Rating: Class A (best available)
- Best For: Restaurants, hospitals, chemical exposure, premium residential
Single-Ply vs Built-Up Roofing Comparison
Understanding how single-ply membrane systems compare to traditional built-up roofing helps property owners make informed decisions for their Myrtle Beach buildings.
| Factor | Single-Ply Membrane | Built-Up Roofing (BUR) |
|---|---|---|
| Installation Speed | 50-75% faster installation | Multiple layers require more time |
| Weight | 0.25-0.50 lbs/sq ft (lightweight) | 3-6 lbs/sq ft (heavy) |
| Energy Efficiency | White reflects 70-85% solar heat | Dark surface absorbs heat |
| Seam Strength | Heat-welded seams 4x membrane strength | Seams are weakest points |
| Maintenance | Low - annual inspection only | Higher - regular tar and gravel work |
| Repair Difficulty | Simple patch repairs | Complex multi-layer repairs |
| Lifespan | 20-35 years | 15-25 years |
| Environmental Impact | Recyclable materials | Petroleum-based, difficult to recycle |
The Verdict for Myrtle Beach Properties
For coastal South Carolina, single-ply membrane roofing is the clear winner for most applications. The combination of faster installation (reducing weather exposure risk), lighter weight (no structural concerns), superior energy efficiency (critical in our hot climate), and longer lifespan makes single-ply the smart choice for both commercial and residential flat roofs. Built-up roofing may still be preferred for very small repairs to existing BUR systems or specific heavy-traffic rooftop applications.
Benefits of Single-Ply Roofing for Myrtle Beach Climate
Coastal South Carolina presents unique roofing challenges that single-ply membrane systems address exceptionally well.
Heat Reflection
White TPO and PVC membranes reflect 70-85% of solar radiation, reducing rooftop surface temperatures by 50-80 degrees Fahrenheit. For Myrtle Beach commercial buildings, this translates to 25-40% reduction in summer cooling costs. ENERGY STAR certified single-ply systems qualify for utility rebates and federal tax incentives.
Hurricane Resistance
Properly installed single-ply membranes withstand sustained winds exceeding 120 mph. Mechanically attached and fully adhered systems provide superior wind uplift resistance critical during hurricane season. Heat-welded seams eliminate the weak points where traditional roofs fail first during severe weather events.
Salt Air Performance
Unlike metal roofing that can corrode in salt air without proper coatings, single-ply membranes are naturally resistant to salt-air corrosion. TPO, EPDM, and PVC all perform exceptionally within the salt-spray zone, making them ideal for oceanfront properties in Cherry Grove, Surfside Beach, and Garden City.
Humidity Resistance
Myrtle Beach averages 70-80% relative humidity year-round. Single-ply membranes resist moisture infiltration, mold growth, and algae accumulation that plague traditional roofing in humid environments. The smooth membrane surface sheds water completely and dries quickly after rain.
UV Degradation Resistance
Coastal South Carolina receives intense UV exposure that accelerates aging of traditional roofing materials. Single-ply membranes are specifically engineered to resist UV degradation with stabilizers that maintain flexibility and performance for decades. This is why single-ply outlasts asphalt shingles by 2-3x in our climate.
Insurance Benefits
Many South Carolina insurance companies offer premium discounts for single-ply membrane roofing due to superior storm resistance, fire ratings, and durability. PVC roofing with Class A fire ratings may qualify for additional discounts. These savings can offset the initial investment over the roof's lifespan.
Commercial Single-Ply Roofing Applications
Single-ply membrane roofing is the dominant choice for commercial buildings in Myrtle Beach. Weather Shield Roofing has completed single-ply installations on diverse commercial properties throughout the Grand Strand.
Retail Centers & Strip Malls
TPO and PVC systems protect multi-tenant retail properties with minimal business disruption during installation. White reflective membranes reduce HVAC costs for the entire center. We coordinate with property managers for phased installations.
Office Buildings
Professional-grade single-ply systems maintain comfortable indoor temperatures while reducing energy costs. Our installations include proper drainage design around rooftop HVAC equipment and clean, finished appearance visible from upper floors of nearby buildings.
Restaurants & Hospitality
PVC roofing is essential for restaurants due to superior grease and chemical resistance from kitchen exhaust. Hotels benefit from energy-efficient white membranes that reduce cooling costs across large roof areas. We install around rooftop equipment without business interruption.
Warehouses & Industrial
Large warehouse roofs benefit most from EPDM's cost-effectiveness on expansive surfaces. Wide sheet sizes minimize seams. Mechanically attached systems provide excellent wind uplift for buildings with minimal interior support requirements.
Medical & Healthcare
Healthcare facilities require roofing that meets strict fire codes and provides long-term reliability. PVC membranes with Class A fire ratings protect sensitive medical equipment and patients. Heat-welded seams prevent the leaks that could damage expensive medical infrastructure.
Multi-Family Housing
Apartment complexes and condominiums benefit from single-ply's energy efficiency across multiple units. Quick installation minimizes resident disruption. Weather Shield Roofing coordinates with HOAs and property management for seamless project execution.
Residential Single-Ply Roofing Applications
While most competitors focus exclusively on commercial applications, Weather Shield Roofing brings professional single-ply technology to residential homes throughout Myrtle Beach. Many homes have flat or low-slope sections that benefit from membrane roofing.
Sunrooms & Room Additions
Modern sunrooms and room additions often feature flat or low-slope roof sections that traditional shingles cannot effectively protect. Single-ply membranes provide watertight protection with proper drainage, eliminating the ponding water issues common in sunroom roofs. TPO's white reflective surface also reduces heat gain, making sunrooms more comfortable during summer months.
- Eliminates ponding water problems
- Reduces heat gain in sun-exposed rooms
- 20+ year lifespan vs 10 years for modified bitumen
Carports & Covered Patios
Attached carports and covered patios often tie into the home's roofing system at difficult transition points. Single-ply membranes seamlessly waterproof these flat sections while integrating properly with the main roof's shingle system. The lightweight material doesn't overload carport structures designed for minimal roof weight.
- Lightweight - won't stress carport structure
- Proper integration with main roof
- Clean, finished appearance
Flat Roof Sections & Dormers
Many Myrtle Beach homes feature architectural elements with flat or low-slope sections between dormers, around chimneys, or at roof-wall transitions. These areas are notoriously leak-prone with traditional roofing. Single-ply membranes eliminate these chronic leak points with seamless waterproofing that flexes with building movement.
- Eliminates chronic leak points
- Handles building movement without cracking
- Professional appearance matches home design
Modern Flat-Roof Homes
Contemporary coastal architecture increasingly features flat or very low-slope roofs for aesthetic and functional reasons. These designs require professional single-ply installation to achieve the decades of leak-free performance homeowners expect. Weather Shield Roofing specializes in the precise detailing these designs demand.
- Supports modern architectural designs
- Compatible with rooftop decks
- Ready for solar panel installation
Single-Ply Roofing Installation Process
Proper installation is critical to single-ply membrane performance. Weather Shield Roofing follows manufacturer specifications and industry best practices for every installation.
Inspection & Assessment
Comprehensive evaluation of existing roof condition, deck integrity, drainage patterns, and building requirements. We identify any structural issues, determine insulation needs, and recommend the optimal single-ply system (TPO, EPDM, or PVC) based on your specific application, budget, and performance priorities.
Deck Preparation
Remove existing roofing material if necessary (recover over existing when appropriate to save costs). Repair any deck damage, replace rotted sections, and ensure structural integrity. Proper preparation is essential - single-ply membranes require a smooth, clean substrate for optimal adhesion and long-term performance.
Insulation Installation
Install tapered polyisocyanurate (polyiso) insulation to create positive drainage slope - critical for preventing ponding water that shortens roof life. Insulation also improves energy efficiency and provides fire resistance. We calculate proper insulation R-value based on building codes and energy efficiency goals.
Membrane Installation
Roll out and position membrane sheets with proper overlap. Attach using mechanically fastened, fully adhered, or ballasted method depending on building requirements and wind uplift needs. Mechanically attached is fastest; fully adhered provides best wind resistance; ballasted is most economical for larger roofs.
Seam Welding & Detailing
For TPO and PVC, all seams are heat-welded using professional hot-air welding equipment at precisely controlled temperatures. This creates permanent bonds stronger than the membrane itself. Custom flashings are fabricated for HVAC units, pipes, drains, and roof edges. Every penetration receives proper waterproofing treatment.
Quality Assurance & Warranty
Comprehensive inspection of all seams, flashings, terminations, and penetrations. Flood testing of drains to verify proper drainage. Documentation photos for warranty records. Final walkthrough with property owner explaining maintenance requirements. Delivery of manufacturer warranty documentation and Weather Shield Roofing workmanship guarantee.
Lifespan and Durability in Coastal South Carolina
Single-ply membrane roofing delivers exceptional longevity in Myrtle Beach's demanding coastal environment. While traditional asphalt shingles typically last only 12-18 years along the coast (compared to 20-25 years inland), single-ply systems routinely achieve their full 20-35 year design life with proper installation and basic maintenance.
The key factors affecting single-ply lifespan in coastal SC include UV exposure intensity, salt air concentration, thermal cycling, and maintenance practices. Properties within 1,500 feet of the ocean face the harshest conditions, yet single-ply membranes handle these challenges effectively. TPO and PVC contain UV stabilizers that resist degradation from our intense sunshine. All single-ply materials resist salt-air corrosion that damages metal components of other roofing systems.
Factors That Maximize Single-Ply Lifespan
Installation Quality
- Certified installer using manufacturer specifications
- Proper seam welding temperatures and techniques
- Correct membrane thickness for application
Design & Maintenance
- Proper drainage slope eliminates ponding water
- Annual inspections catch minor issues early
- Regular drain and debris maintenance
Single-Ply Roofing Maintenance Requirements
One of single-ply membrane roofing's greatest advantages is minimal maintenance requirements compared to other roofing systems. However, basic preventive maintenance extends roof life significantly and maintains warranty coverage.
Semi-Annual Maintenance Checklist
- Clear debris from roof surface and drains
- Inspect seams and flashings for separation
- Check for ponding water (should drain within 48 hours)
- Examine membrane for punctures or tears
- Verify edge terminations are secure
- Inspect around HVAC units and penetrations
Post-Storm Inspection Protocol
- Check for debris impact damage
- Inspect edge metal for wind damage
- Verify membrane is still attached (no billowing)
- Clear drains to prevent ponding
- Document any damage for insurance claims
- Schedule professional inspection if damage suspected
Maintenance Program Available
Weather Shield Roofing offers preventive maintenance programs for commercial single-ply roofs. Regular professional maintenance can extend roof life by 30-50%, turning a 25-year roof into 35+ years of service. Contact us for maintenance program details and pricing.
Single-Ply Roofing Cost Factors
Single-ply membrane roofing costs vary based on multiple factors. Understanding these variables helps property owners budget appropriately and make informed decisions about material selection.
Material Cost Factors
- Membrane type: EPDM is most affordable, TPO mid-range, PVC premium
- Membrane thickness: 45, 60, or 80 mil options at different price points
- Insulation requirements: R-value and tapered insulation add cost
- Manufacturer: Premium brands like Firestone, Carlisle, GAF cost more
Labor & Installation Factors
- Roof access: Difficult access increases labor costs
- Penetrations: HVAC units, pipes, drains require custom flashing
- Tear-off vs recover: Removing existing roofing adds cost
- Installation method: Fully adhered costs more than mechanically attached
Single-Ply Roofing Investment Considerations
Contact Weather Shield Roofing at (843) 877-5539 for a free, no-obligation quote specific to your property.
Frequently Asked Questions
Common questions about single-ply membrane roofing in Myrtle Beach
What is the best single-ply roofing for Myrtle Beach coastal properties?
For oceanfront properties within 1,500 feet of the water, we typically recommend TPO or PVC for their superior resistance to salt air, UV degradation, and humidity. TPO offers the best value for most applications, while PVC is ideal for restaurants or buildings with chemical exposure. EPDM works well for properties further inland where its cost-effectiveness provides maximum value. Weather Shield Roofing evaluates your specific location, building use, and budget to recommend the optimal system.
Can single-ply roofing withstand hurricanes?
Yes, properly installed single-ply membrane systems withstand hurricane-force winds. Mechanically attached and fully adhered installations meet wind uplift requirements for high-velocity hurricane zones. Heat-welded seams (TPO and PVC) are actually stronger than the membrane material itself, eliminating the seam failures common in older roofing technologies during storms. Weather Shield Roofing installs all single-ply systems according to Miami-Dade County approved methods for maximum wind resistance.
How long does single-ply membrane roofing last in South Carolina?
TPO roofing typically lasts 20-25 years in coastal South Carolina. EPDM averages 25-30 years with many systems exceeding 40 years. PVC provides the longest lifespan at 25-35 years. These lifespans assume proper installation and basic maintenance. For comparison, asphalt shingles only last 12-18 years along the coast due to accelerated UV and salt air degradation. Single-ply's longer lifespan makes it more cost-effective despite higher initial investment.
What is the difference between TPO, EPDM, and PVC roofing?
TPO (Thermoplastic Polyolefin) is the most popular choice offering excellent cost-to-performance ratio with heat-welded seams and white reflective surface. EPDM (synthetic rubber) is the most affordable option with 50+ year track record, available in black or white, using adhesive or tape seams. PVC is the premium option with superior chemical, grease, and fire resistance, heat-welded seams, and longest lifespan. TPO suits most commercial and residential applications; EPDM is ideal for budget-conscious large roofs; PVC is best for restaurants, hospitals, and demanding environments.
Can I install single-ply roofing over my existing flat roof?
In many cases, yes. Single-ply membranes can be installed over existing smooth-surface built-up roofing, EPDM, or even damaged single-ply if the substrate is stable. This "recover" approach saves 20-30% compared to full tear-off by eliminating removal and disposal costs. However, building codes typically limit roofs to two layers, and severely damaged or wet existing roofing must be removed. Weather Shield Roofing evaluates your existing roof to determine if recover is appropriate.
How energy-efficient is single-ply roofing?
White TPO and PVC membranes are highly energy-efficient, reflecting 70-85% of solar radiation compared to only 5-15% for dark roofs. This reduces rooftop surface temperatures by 50-80 degrees Fahrenheit and lowers cooling costs by 25-40%. ENERGY STAR certified systems qualify for utility rebates and federal tax incentives. In Myrtle Beach's hot climate, energy savings can offset a significant portion of the roof investment over its 20-30 year lifespan.
Is single-ply roofing good for residential homes?
Absolutely. While single-ply is dominated by commercial applications, it's excellent for residential flat roof sections including sunrooms, room additions, carports, covered patios, and flat sections between dormers. Single-ply eliminates the chronic leak problems common in residential flat roof areas. Modern architectural homes with flat or low-slope designs particularly benefit from professional single-ply installation. Weather Shield Roofing brings commercial-grade expertise to residential applications.
What maintenance does single-ply roofing require?
Single-ply roofing requires minimal maintenance - one of its major advantages. Recommended maintenance includes semi-annual inspections (spring and fall), clearing debris from drains and the roof surface, checking seams and flashings for issues, and post-storm inspections. Most homeowners can perform basic visual inspections themselves. Professional inspections are recommended annually for commercial roofs. Proper maintenance can extend roof life by 30-50%.
Can solar panels be installed on single-ply roofing?
Yes, single-ply membranes are ideal for solar panel installations. Ballasted (weighted) racking systems can be installed without roof penetrations, preserving membrane integrity and warranty. Attached systems can also be used with proper flashing details. White reflective roofing under solar panels actually improves panel efficiency by reflecting light back to panel undersides. Consider installing solar during roof replacement for maximum efficiency and cost savings.
Does Weather Shield Roofing offer single-ply warranties?
Yes. All single-ply installations include manufacturer warranties (typically 20-30 years depending on system) plus Weather Shield Roofing's workmanship warranty. We are certified installers for GAF, Firestone, Carlisle, and Johns Manville, enabling us to offer extended manufacturer warranties including full-system coverage. Commercial roofs may qualify for NDL (No Dollar Limit) warranties covering both materials and labor for the warranty period.
Ready for Expert Single-Ply Roofing in Myrtle Beach?
Get your free inspection and quote from the Grand Strand's trusted single-ply specialists. Licensed, insured, and 5.0-star rated.
Single-Ply Roofing Service Areas
Weather Shield Roofing provides expert single-ply membrane installation throughout the Grand Strand and coastal South Carolina.