Artisan Roofing & Construction - Blog Post: commercial roof

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"Reasons Behind the Flat Design of Commercial Roofs"

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"Explore top-quality commercial roof solutions for your business. Our experts provide durable, weather-resistant roofing. Discover the best in commercial roofing today."

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Why are commercial roofs flat?

Commercial buildings are usually designed with flat roofs, a feature that might seem peculiar to some. It’s not just for aesthetics or a modern architectural style. There are practical reasons behind this design choice. This article delves into the whys and hows of commercial roof design, the types of flat commercial roofs, and the key considerations in their installation and maintenance.

Understanding Commercial Roof Design

What Is a Commercial Roof?

A commercial roof is the topmost layer of a commercial building, such as an office, store, warehouse, or multi-story apartment complex. It’s designed to protect the building and its occupants from the elements, provide insulation, and often serve additional purposes, like housing HVAC systems or solar panels.

Why Flat Roofs Are Common for Commercial Buildings

Flat roofs are a common choice for commercial buildings because they’re cost-effective, allow space utilization, provide easy access for maintenance and inspections, and offer energy efficiency benefits.

Differences Between Residential and Commercial Roofs

Unlike residential roofs, which are often sloped or pitched, commercial roofs are typically flat or have a very low slope. This difference is primarily due to the larger size of commercial buildings and the need for efficient use of space.

Key Reasons Commercial Roofs Are Flat

Cost-Effectiveness and Material Savings

Flat roofs require less material than pitched roofs, which can lead to substantial savings in large commercial buildings. Also, the flat design simplifies the construction process, reducing labor costs.

Space Utilization for HVAC Systems and Solar Panels

Flat commercial roofs provide additional space for utilities like HVAC systems and solar panels, allowing these large units to be placed out of sight while also saving valuable ground space.

Easier Maintenance and Roof Inspections

With their flat surface, these roofs are easier and safer to walk on, making routine maintenance and inspections more straightforward.

Energy Efficiency Considerations

Flat roofs can be designed to increase a building’s energy efficiency. From cool roof coatings to reflective roofing materials, there are multiple solutions to reduce heat absorption and lower cooling costs.

Types of Flat Commercial Roofs

Built-Up Roofs (BUR)

Built-up roofs, also known as BUR, are made up of multiple layers for durability. With a life expectancy of up to 50 years, BUR is a popular choice for commercial properties.

Modified Bitumens

Modified bitumen roofs include heat-welded seams that increase their durability in harsh conditions. They’re a good choice for buildings in regions with extreme weather.

Single-Ply Membrane Systems

Single-ply roofs include materials like TPO (Thermoplastic Polyolefin), EPDM (Ethylene Propylene Diene Monomer, a synthetic rubber), and PVC, known for its strong chemical resistance. These roofs are durable, versatile, and suitable for a wide range of climates and building types.

Green Roofs

Green roofs, covered with vegetation, offer environmental benefits and energy savings. They’re an appealing option for building owners seeking sustainable and energy-efficient solutions.

Installation and Maintenance Best Practices

Proper Installation Techniques

Proper installation is crucial to ensure the longevity and performance of a commercial roof. Experienced roofing contractors can prevent common installation errors and ensure the project’s success.

Routine Roof Inspections

Regular inspections can help identify potential issues early, saving you from costly repairs. It’s advisable to schedule inspections at least twice a year or after severe weather events.

Roofing Project Considerations

When planning a roofing project, take into account not just the initial cost but also the long-term expenses of maintenance, repairs, and potential replacements. Also, ensure the chosen materials and labor are covered under warranty.

Factors to Consider When Choosing a Commercial Roof Type

Choosing the right type of commercial roofing depends on several factors, including climate and weather resistance, building size and design, long-term cost versus initial investment, and regulatory compliance and permits.

Conclusion: Why Commercial Roofs Stay Flat

Flat commercial roofs offer a range of benefits for commercial properties, making them a popular choice. From cost savings to energy efficiency, their advantages are clear. And with the increasing interest in green roofs and solar power, we’ll likely see more innovations in commercial roofing in the future.

When it comes to roofing projects, it’s crucial to partner with experts who understand your needs. At Artisan Roofing & Construction, we specialize in top-tier construction and remodeling services for both residential and commercial clients. With our commitment to excellence, innovative design, and custom solutions, we help our clients make the best decisions for their properties. So, whether you need a new roof or a large-scale construction project, don’t hesitate to contact us. Let us help you make your next project a success.