Commercial Roofing
Our commercial roofing solutions cater to a wide range of requirements, including Single Ply roofing systems like EPDM, and PVC recognised for their superior strength and durability. We also supply reinforced built-up bitumen roofing systems as well as standing seam hard metal roofing systems. These systems are designed to offer long service life, resistance to harsh weather conditions, and energy efficiency advantages.
Proud Stockist of:
Ireland's Most Trusted Commercial Roofing Supplier – Complete Systems, Expert Support, Guaranteed Results
Commercial property owners and contractors across Ireland trust QBM to deliver roofing systems that protect their investments for decades to come. Our comprehensive range of commercial flat roofing solutions includes premium single-ply membranes from leading European manufacturers, reinforced bituminous systems for traditional applications, and advanced standing-seam metal roofing for architectural projects demanding both performance and aesthetics. Whether you're specifying materials for a new industrial warehouse, replacing the roof on a retail park, or upgrading a multi-storey office building, QBM stocks the complete system components you need, from membranes and insulation through to flashings, fixings, and drainage accessories.
The performance demands placed on commercial roofs far exceed those of residential applications, which is why system selection requires careful consideration of exposure conditions, building use, budget constraints, and long-term maintenance implications. Our single ply PVC and EPDM membranes offer exceptional resistance to UV degradation, thermal cycling, and chemical exposure whilst remaining flexible across Ireland's temperature range.
For projects requiring fire-rated specifications or where traditional aesthetics are preferred, our reinforced bitumen systems provide proven reliability backed by decades of field performance. Standing seam metal roofing delivers unmatched longevity and architectural appeal for high-profile commercial developments where roof visibility is a design consideration.
QBM works exclusively with manufacturers whose products carry comprehensive third-party certifications, including FM Approvals, BBA certificates, and CE marking. These certifications provide architects, engineers, and building owners with the confidence that specified systems will meet stringent performance criteria for weather resistance, fire safety, and structural integrity.
Many of our commercial roofing systems qualify for extended warranty programmes reaching 25 years or more when installed by approved contractors using complete system components. Our technical team can assist with warranty registration, compliance documentation, and ongoing maintenance planning to protect your investment throughout its service life.
Installation efficiency directly impacts project timelines and overall costs, making system selection a critical commercial decision. Modern single ply membranes can be mechanically fastened, fully adhered, or ballasted depending on substrate conditions and building constraints, offering contractors flexibility in installation methodology whilst maintaining watertight integrity. The lightweight nature of EPDM and PVC systems reduces structural loading compared to traditional built-up felt, often eliminating the need for costly structural reinforcement on refurbishment projects. For new build developments, our modular roofing solutions integrate seamlessly with building envelopes, accelerating construction programmes and enabling earlier handover dates.
QBM's Dublin trade counter maintains substantial stocks of commercial roofing materials for immediate collection, whilst our logistics network ensures reliable delivery across Ireland for larger projects requiring multiple loads. Our relationships with leading manufacturers mean we can access specialist products and bespoke fabrications when standard components don't meet project requirements. From initial system selection and material take-offs through to technical support during installation and post-completion inspections, QBM provides the complete service commercial contractors and property developers need to deliver roofing projects on time, on budget, and built to last.
Got a Question? Find the Answer Here
What is the typical lifespan of commercial roofing systems in Ireland?
High-quality commercial roofing systems properly installed and maintained can achieve service lives of 25-40 years, depending on the membrane type and exposure conditions. Single-ply PVC and PIB membranes typically offer the longest service life due to superior UV resistance and chemical stability. EPDM systems provide excellent durability for 20-30 years, whilst reinforced bitumen systems generally last 20-25 years. Regular maintenance inspections and prompt repairs of minor damage are essential to achieving maximum lifespan from any commercial roofing system.
Which commercial roofing system is most cost-effective for warehouses and industrial buildings?
For large industrial roofs, mechanically fastened EPDM systems often provide the best value proposition when considering initial cost, installation speed, and long-term performance. These systems require minimal substrate preparation, can be installed quickly by experienced crews, and deliver reliable waterproofing at competitive rates per square metre. However, building-specific factors, including roof configuration, existing substrate condition, and warranty requirements, should inform the final system selection. Our technical team can provide comparative costings for your specific project.
Can commercial roofing systems be installed during the winter months in Ireland?
Many modern commercial roofing systems can be installed year-round with appropriate weather precautions. Single-ply membranes like PVC and EPDM can typically be installed in temperatures as low as -5°C, though productivity may be reduced in cold or wet conditions. Bituminous systems generally require minimum substrate temperatures of 5°C for proper adhesion. Standing seam metal roofing can be installed in most weather conditions as it uses mechanical fixing rather than adhesives. Project scheduling should account for Ireland's weather patterns, with contractors often planning major installations during drier spring and summer months to minimise weather delays.
Do commercial roofs require regular maintenance, and what does this involve?
Commercial roofs should be inspected at least twice annually, typically in spring and autumn, to identify and address minor issues before they develop into costly problems. Maintenance activities include clearing debris from drainage outlets, checking membrane condition around penetrations and upstands, inspecting flashings and edge details, and removing vegetation growth. Most manufacturers require documented maintenance records to maintain warranty coverage. Many building owners establish planned maintenance contracts with specialist roofing contractors to ensure consistent inspection schedules and prompt repair of any damage identified.
What fire rating requirements apply to commercial roofing in Ireland?
Commercial roofing systems in Ireland must comply with Building Regulations Part B (Fire Safety), with specific requirements varying based on building use, proximity to boundaries, and roof size. Most commercial applications require external fire performance classification of BROOF(t4) as a minimum, achieved through appropriate system design, including suitable substrate, insulation, and membrane selection. Buildings with higher fire safety requirements, such as schools, hospitals, or high-rise structures, may need enhanced specifications. All roofing products we supply carry relevant fire test certifications, and our technical team can advise on compliant system configurations for your specific application.