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Your Guide to Commercial Flat Roofing in Spokane Valley

commercial flat roofing, commercial roofing

Flat roofing is a popular choice for commercial properties, offering a range of benefits that make it ideal for businesses. Whether constructing a new building or replacing an existing roof, understanding the nuances of flat roofing can help you make informed decisions. This guide provides a detailed overview of commercial flat roofing, highlighting materials, maintenance needs, and common issues.

Common Flat Roofing Materials

Built-Up Roofing (BUR)

Built-up roofing, commonly known as BUR, is a traditional flat roofing material that consists of multiple layers of bitumen and reinforcing fabrics. These layers are applied in a hot or cold process to create a durable and waterproof membrane.

  • Durability: BUR is highly durable and can last up to 30 years with proper maintenance.
  • Waterproofing: The multiple layers provide excellent waterproofing, protecting your building from leaks and water damage.
  • Energy Efficiency: BUR’s reflective surface can help reduce cooling costs by reflecting sunlight away from the building.

Modified Bitumen

Modified bitumen roofing is an evolution of BUR, featuring a single-ply membrane that is reinforced with layers of polyester or fiberglass. It is applied using heat-welding or cold-adhesive methods.

  • Flexibility: Modified bitumen is more flexible than traditional BUR, making it less likely to crack under temperature fluctuations.
  • Ease of Installation: The material is easier to install, which can reduce labor costs and installation time.
  • UV Resistance: Modified bitumen resists UV radiation, prolonging the roof’s lifespan.

TPO (Thermoplastic Olefin)

TPO roofing is a single-ply membrane made from a blend of polypropylene and ethylene-propylene rubber. It is known for its durability and energy efficiency.

  • Energy Efficiency: TPO is highly reflective, reducing heat absorption and cooling costs.
  • Durability: The material is resistant to UV rays, chemical exposure, and punctures, ensuring a long lifespan.
  • Environmental Friendliness: TPO is a recyclable material, making it an eco-friendly roofing option.

EPDM (Ethylene Propylene Diene Monomer)

EPDM is a synthetic rubber membrane known for its excellent weather resistance and flexibility.

  • Weather Resistance: EPDM can withstand extreme temperatures, UV radiation, and environmental pollutants.
  • Flexibility: The material’s flexibility allows it to accommodate structural movements without cracking.
  • Longevity: EPDM roofs can last up to 30 years or more with proper maintenance.
commercial flat roofing, commercial roofing

Maintenance Tips for Flat Roofs

Regular Inspections

Conducting regular inspections is crucial to maintaining the integrity of your flat roof. Inspections should be performed at least twice a year and after significant weather events. Look for signs of damage, such as cracks, blisters, or pooling water.


Remove debris, leaves, and dirt from your flat roof. Accumulated debris can trap moisture and cause deterioration. Ensure drains and gutters are clear to prevent water pooling on the roof surface.

Prompt Repairs

Address any issues promptly to prevent minor problems from escalating into major repairs. Small cracks or leaks can be easily fixed if caught early, but if left unattended, they can cause significant damage to the roof and the building structure.

Professional Maintenance

Hiring a professional roofing contractor for regular maintenance can extend the lifespan of your flat roof. Professionals have the expertise to identify potential problems and perform necessary repairs, ensuring your roof remains in optimal condition.

commercial flat roofing, commercial roofing

Common Issues with Flat Roofs

Water Pooling

Due to their minimal slope, flat roofs are prone to water pooling. If not addressed, standing water can lead to leaks and structural damage. Ensure proper drainage systems are in place to prevent water accumulation.

Membrane Damage

The membrane of flat roofs can be susceptible to punctures, tears, and blisters. Regular inspections and prompt repairs can prevent further damage and maintain the roof’s integrity.

Thermal Expansion

Flat roofs expand and contract with temperature changes, which can cause the membrane to crack or split over time. Using flexible materials like EPDM or modified bitumen can mitigate this issue.

Conclusion: Contact Apex Roofing for Expert Flat Roofing Services

Contact Apex Roofing today to schedule a consultation and learn more about how we can help you maintain and enhance your commercial property with top-notch flat roofing solutions. Our experienced professionals are ready to provide you with reliable and efficient roofing services that will protect your business for years to come.