White roofs, or “cool roofs,” have gained popularity for commercial properties across the U.S. due to their proven energy efficiency that keeps cooling costs low. In our blog, we'll dive into white roofs and the advantages of installing a white roof on a commercial building.
Next, we'll explore what white roofs are made of, their environmental impact, and their energy efficiency costs. We’ll also share how buildings with white roofs, particularly in warmer climates or ones that experience direct sunlight, can stay cooler, reducing the need for air conditioning and lowering energy costs.
The Benefits of White Roofing
White roofing material stays the coolest in the sunlight, reflecting 60 to 90% of the sun’s rays, which offers great advantages in the U.S. summer months and warmer climates. Below are more benefits of commercial white roofing:
- Reduced carbon footprint: A white roof reduces the amount of air conditioning required and its associated greenhouse gas emissions, making it more environmentally friendly.
- Increased longevity: Roof life is extended as cool roofs reflect solar UV rays that cause deterioration.
- Reduced peak electricity demand: White roofs can reduce air conditioning demands on power grids in hot summer months and warm climates, which can prevent power outages.
- Increased energy savings: Conventional roofs can reach temperatures of 150°F or more on a sunny afternoon in the summer. White roofs can reduce the external temperature by up to 50 degrees on a warm day.
Types of White Roofing
The most common commercial white roofing materials are available in TPO, PVC, and EPDM materials; however, they’re also available in metal.
Choosing the right roof material for your building may depend on your roofline, needs, and budget. Next, we’ll dive into white roof options and their benefits.
White EPDM Roofing
Ethylene propylene diene monomer (EPDM) roofing, or white rubber roofing, is a synthetic rubber membrane used in low-slope buildings and is known for its lightweight, flexible, and affordable material. The white coating of an EPDM roof is typically made of titanium dioxide.
EPDM roofing is also capable of protecting your property from strong winds, extreme temperature changes, and UV radiation. Because of its cost-efficiency, it's a popular choice among commercial properties.
Below are more benefits of EPDM roofing:
- Waterproof: EPDM is 100% waterproof and won't pollute rainwater runoff, making it a more eco-friendly choice.
- Temperature resistant: It can remain stable in extreme temperatures, ranging from extreme heat to very cold.
- Lightweight: This material is lighter than asphalt shingles, weighing about half a pound per square foot.
- Easy Installation: It’s easy, quick, and affordable to install.
- Durable: EPDM white roofing material can last 20 to 30 years, depending on maintenance.
PVC Roofing
White PVC (or polyvinyl chloride) roofing is a popular synthetic plastic polymer used in a variety of building and construction applications, such as restaurants, shopping centers, and condominiums.
PVC is traditionally used for flat or low-slope commercial roofs and protects your commercial property from outdoor elements, such as hail, snow, rain, chemicals, and fire—making it an ideal solution for industrial and manufacturing facilities due to its durability.
Here are a few reasons commercial businesses choose white PVC roofing:
- Durable: PVC offers strength and durability, lasting 20 to 30 years.
- Protection: It protects your building from UV radiation which causes wear and tear.
- Efficient: Cool roof membranes reduce electricity bills.
- Cost-Effective: PVC lowers electricity bills and carbon emissions.
- Recyclable: This type of roofing is 100% recyclable and can be re-made into other materials, such as flooring.
TPO Roofing
TPO stands for thermoplastic polyolefin. Similar to PVC, it’s a popular single-ply roofing membrane that protects commercial properties against hot summer days and UV rays—but at a much lower cost.
When most people see the word “thermoplastic,” they think of plastic, like PVC. But in reality, it combines Ethylene Propylene rubber, making it a flexible solution.
Considered both cost and energy-efficient, TPO is ideal for flat roofs or properties that feature a low-slope roof at a cost-effective price.
With a TPO roofing system, you can enjoy a modern appearance that is both cost-efficient and will enhance the functionality of your building.
Benefits of TPO Roofing:
- Flexibility: This type of material is generally more flexible than other types of single-ply roofing systems.
- Easy installation: TPO can be installed over many types of pre-existing roofing systems.
- Reduced cooling costs: TPO is highly reflective of UV rays, reducing air conditioning costs.
- Durability: This type of roofing material can last from 20 to 30 years.
What is the Cost of a White Roof?
Is white roofing worth the investment? Absolutely! Commercial white roofing material costs typically begin at $1.60 to $5.20 per square foot depending on insulation materials used and can save you an average of $0.50 per square foot each year in warmer summer months and climates.
EPDM, PVC, and TPO white roofing materials are cost-efficient options, ranging from $5 to $10 per square foot to install compared to a steel metal roof, which can cost $10 to $20+ per square foot.
Are White Roofs Hard to Keep Clean?
While dirt, dust, pollen, and debris are more noticeable with a white roof, you can help keep them clean with yearly maintenance and commercial cleaning.
Looking to Lower Your Energy Costs?
Upgrading your roof can save you thousands of dollars long-term. All Elements, Inc. specializes in commercial roof installation and repairs using materials made in the USA. Get an estimate today!