When selecting a roofing system for commercial properties, it is vital to consider many factors, such as robustness, maintenance, cost, energy adeptness, and installation complexity. Here’s a judgement of the most common commercial roofing types:
Built-Up Roofing (BUR)
Description:
Built-up roofing (BUR) is a traditional roofing method that involves multiple layers of bitumen (asphalt or tar) alternated with reinforcing fabrics, topped with a layer of aggregate such as gravel.
Advantages:
- Durability: Highly durable and can last 20-30 years with proper maintenance.
- Waterproofing: Excellent waterproofing due to multiple layers.
- UV Protection: The top layer of gravel protects against UV radiation.
- Low Maintenance: Needs the least preservation once set up.
Disadvantages:
- Weight: Heavy and may need extra structural backing.
- Installation Time: Time-consuming installation process.
- Fumes: The installation process can produce strong fumes.
Best Use Cases:
- Big commercial buildings with low-slope roofs or flats.
- Buildings that require a highly durable and long-lasting roofing system.
Modified Bitumen Roofing
Description:
Modified Bitumen Roofing is like BUR but includes polymer-modified bitumen, which enhances flexibility and durability. It can be installed as a single-ply or multi-ply system.
Advantages:
- Flexibility: More flexible than traditional BUR, making it less likely to crack.
- Comfort of Installation: Stress-free to install and repair evaluated to BUR.
- Durability: Resistant to extreme weather conditions.
Disadvantages:
- Limited Aesthetic Options: Fewer colour and design options.
- Surface Heat: The black surface can absorb heat, affecting energy efficiency.
Best Use Cases:
- Commercial buildings in areas with extreme weather conditions.
- Structures that need a flexible yet durable roofing system.
EPDM (Ethylene Propylene Diene Monomer)
Description:
EPDM is a single-ply rubber roofing membrane recognised for its strength and variability.
Advantages:
- Longevity: With proper maintenance, it can last up to 50 years.
- Flexibility: Highly flexible, even in cold temperatures.
- Ease of Installation: Relatively easy to install and repair.
- UV and Ozone Resistance: Excellent resistance to UV rays and ozone.
Disadvantages:
- Aesthetic Limitation: Typically available in black, which can absorb heat.
- Seam Issues: Seams can become vulnerable over time if not properly sealed.
Best Use Cases:
- Commercial buildings in areas with varying temperatures.
- Structures that require a highly durable and long-lasting roof.
PVC (Polyvinyl Chloride)
Description:
PVC is a single-ply roofing membrane known for its strength, durability, and energy efficiency.
Advantages:
- Chemical Resistance: Resistant to chemicals, grease, and fire.
- Energy Efficiency: Contemplative surface assists in decreasing cooling costs.
- Durability: High durability with a lifespan of 20-30 years.
- Ease of Installation: Easy to install with heat-welded seams.
Disadvantages:
- Cost: Higher initial cost compared to other single-ply membranes.
- Environmental Concerns: The manufacturing process involves chlorine, which can be environmentally harmful.
Best Use Cases:
- Commercial buildings with exposure to chemicals or grease, such as restaurants.
- Buildings in hot weather need energy-efficient roofing.
TPO (Thermoplastic Olefin)
Description:
TPO is a single-ply roofing covering comprised of a combination of polypropylene and ethylene-propylene rubber.
Advantages:
- Energy Efficiency: Deep surface decreases cooling charges.
- Stability: Heat-welded layers offer solid and stable bonds.
- Cost-Effective: Generally more affordable than PVC.
- Flexibility: Flexible and resistant to punctures and tears.
Disadvantages:
- Quality Variability: Quality can differ between producers.
- Moderately New: Less lasting functioning data compared to other roofing forms.
Best Use Cases:
- Commercial buildings in hot climates where energy efficiency is a priority.
- Structures requiring a cost-effective yet durable roofing solution.
Metal Roofing
Description:
Metal roofing systems are generally constructed from steel, aluminium, or copper and can be installed using either standing seam or corrugated panels.
Advantages:
- Longevity: Extremely long-lasting, with a lifespan of 40-70 years.
- Durability: Unaffected by severe weather situations, fire, and hassles.
- Energy Efficiency: Reflective surfaces can reduce cooling costs.
- Low Maintenance: Requires minimal maintenance.
Disadvantages:
- Cost: Advanced exposed cost parallel to other roofing resources.
- Noise: Can be loud for the duration of rain or hailstorms.
- Expansion and Contraction: Metal can expand and contract with temperature changes, potentially causing fasteners to loosen.
Best Use Cases:
- Commercial buildings need a highly durable and long-lasting roof.
- Constructions in areas lying to risky weather situations.
Conclusion:
Choosing the right commercial roofing type includes balancing stability, cost, energy efficiency, and installation complications. Metal roofing stands out for its excellent longevity and slight maintenance. By considering the exact needs of the building and its environment, property owners and managers can select the most appropriate roofing system for their commercial properties.
NYC Skyline Construction is a premier construction company specialising in high-rise and commercial building projects across New York City. With a commitment to excellence, we provide comprehensive services, including design, engineering, project management, and construction. Our experienced team ensures the highest standards of quality, safety, and sustainability on every project. Known for our innovative solutions and timely delivery, NYC Skyline Construction transform visions into iconic structures that enhance the NYC skyline.