Commercial Flat Roofing

At Commercial Roof, we provide specialist commercial flat roofing solutions and across the UK, ensuring durability, weather resistance, and cost-effectiveness for your property.

Whether you need a new flat roof installation, repairs, or a full replacement, our expert team delivers high-performance materials and tailored solutions for various industries, including warehouses, offices, hospitals, and retail centres.

With a focus on energy efficiency, waterproofing, and long-term performance, we guarantee reliable and professional roofing services that enhance the safety and functionality of your commercial building.

Request a free, no-obligation quote from our team of commercial flat roofing specialists today.

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What is the Commercial Flat Roofing Installation Process?

The commercial flat roofing installation process begins with a thorough inspection and site assessment, evaluating the building’s structural integrity and insulation needs. Once the most suitable roofing material is selected, the roof surface is cleaned and prepped to ensure proper adhesion.

Insulation layers are installed to improve thermal efficiency and moisture protection before the chosen flat roofing membrane is applied. The final step involves sealing seams, installing flashing, and conducting a quality assurance check to ensure compliance with industry standards and waterproofing effectiveness.

What Types of Commercial Flat Roofing Systems Are Available?

Commercial flat roofing systems include EPDM, TPO, PVC, modified bitumen, built-up roofing (BUR), and liquid-applied roofing systems.

These options have the following properties:

• EPDM roofing – A durable rubber membrane known for flexibility and resistance to extreme temperatures.

• TPO roofing – A highly reflective, energy-efficient material that reduces cooling costs in warm climates.

• PVC roofing – A chemical-resistant, fireproof, and waterproof option ideal for restaurants, hospitals, and industrial buildings.

• Modified bitumen roofing – Multi-layered asphalt sheets offering excellent durability and resistance to foot traffic.

• Built-up roofing (BUR) in – Traditional roofing using layers of bitumen and gravel, providing long-term protection but requiring structural reinforcement.

• Liquid-applied roofing systems – Seamless, waterproof solutions such as polyurethane and silicone coatings for new installations and refurbishments.

How Much Does Commercial Flat Roofing Cost?

Commercial flat roofing costs range from £50 to £200 per m², depending on material type, insulation, and installation complexity.

The cost breakdown includes:

• EPDM and TPO roofing systems cost between £50 and £100 per m²

• PVC and modified bitumen systems range from £80 to £150 per m².

• Built-Up Roofing (BUR) in , which includes multiple layers of asphalt and gravel, costs between £100 and £200 per m².

Additional expenses may include insulation upgrades, waterproof coatings, drainage systems, and structural reinforcements in , depending on the project’s complexity. Investing in high-quality materials and professional installation ensures long-term savings on maintenance and repairs.

Contact Commercial Roof in to get customised pricing for a commercial flat roofing job.

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How Long Does a Commercial Flat Roof Last?

Commercial flat roofing typically lasts 20–40 years in , depending on material quality, installation, and maintenance.

The lifespans of different roofing types are:

• EPDM and TPO roofs in typically last 20–30 years. 

• PVC roofing in can exceed 30 years with proper care.

• Modified bitumen and BUR systems in offer a lifespan of 20–40 years, depending on climate conditions and foot traffic levels.

Regular inspections, cleaning, and prompt repairs can significantly extend the life of your flat roof, preventing leaks, cracks, and insulation failures.

What Are the Benefits of Commercial Flat Roofing ?

Commercial flat roofing is cost-effective that makes it more affordable than pitched roofing, while its low-profile design offers easy maintenance and repair access. Flat roofs allow for space optimisation in , supporting HVAC units, solar panels, and rooftop gardens.

Many flat roofing materials also provide better energy efficiency in , with reflective coatings and insulation upgrades reducing heating and cooling costs. Additionally, advanced waterproofing options protect against leaks and structural damage, ensuring long-term performance.

Do You Need a Permit for Commercial Flat Roofing ?

Permits for commercial flat roofing are required for new installations and significant modifications, particularly if they affect drainage, insulation, or fire safety compliance.

Minor repairs and maintenance work typically do not require permits in , but it’s essential to verify local council requirements before starting a project.

At Commercial Roof, we handle all necessary permit applications and ensure that your roofing project meets UK safety and building codes.

Contact us in to get further details on the commercial flat roofing project.

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