Every commercial construction project relies on efficient material procurement and roof decking is no exception. It is used as a structural support for roofing systems, supporting loads between beams, joists, and steel framing. For contractors, engineers, and project managers, ordering roof decking should be a streamlined process. However, expensive errors are still made because of miscommunication, wrong measurements, accessory omissions, or inappropriate profile choices.
Keystar Industries regularly works with professionals across the Upper Midwest to supply steel roof decking in various profiles and finishes. Drawing on this experience, we’ve identified the most frequent mistakes made when ordering roof decking and offer strategies for avoiding them. When you are considering a new build, reroof, or structural retrofit, being aware of these issues in advance can save you time, waste, and keep your job on schedule.
Selecting an Inappropriate Roof Deck Profile
The most frequent error is the specification of a profile without taking into account the structural span, loading requirements, or application. The most popular 1.5” deep profile is Type B deck, which provides a good balance of strength and costs up to 12 feet spans. But it is not always suitable.
Type N decking, which has a 3” deep profile, may be more suitable for long spans or higher loading, such as warehouses or industrial buildings. On the other hand, F deck or even form deck systems can be used in projects with shorter spans or less load. In the case of wrong profile selection, installers are likely to experience on-site alterations, delays, or structural inefficiencies.
Rather than guessing which profile will work, verify span tables and loading capacities early in the design process. Our team at Keystar can assist contractors in comparing the options and making decisions based on real structural requirements, rather than guessing.
Ignoring Finish Requirements
Steel decking is normally available in two finishes, galvanized and prime-painted. They have their own applications, and not knowing the difference between them can result in expensive reorders or early corrosion during service.
Galvanized decking (typically G90 coated) is best suited to long-term exposure or roof systems where moisture intrusion is possible. It is resistant to corrosion, which aids in safeguarding the decking in case of insulation or membrane failure.
Gray-painted decking with bare steel and prime-painted decking are cheaper and offer low-level protection during installation. It is usually applied in dry interior areas or in areas where the deck will be covered soon.
Errors occur where contractors place orders on one type thinking that it is interchangeable with the other. To prevent problems, check finish expectations in the spec documents and make them clear when you place your order.
Estimating Materials or Lengths Incorrectly
Precision in material quantity and cut lengths can be schedule making or breaking. In most instances, contractors provide rough measurements without considering staggered spans, wastes, or field adjustments. This can result in shortages, which slows down the job, or overages, which needlessly increase costs.
Keystar offers cut-to-length services for roof decking panels. This is perfect to minimize field labor and to make sure that each piece fits the support structure perfectly. However, we can only provide what is specified. Submission of final architectural drawings or verified field dimensions can assist in making sure that your order is based on the actual needs of your jobsite.
When re-roofing, do not use original blueprints. The conditions at the site are usually not the same and the spacing of structural support might have changed with time. Walk to the site or ask to have measurements updated prior to submitting quantities.
Failure to Order Required Accessories
An often-overlooked aspect of roof decking orders is the need for essential metal decking accessories. These are edge components, sealants, support elements, and load-bearing reinforcements. Unless they are part of the initial order, they have to be ordered separately, often with short deadlines.
Keystar offers a complete line of accessories that are compatible with all common roof deck profiles. These include:
– End and side closures
– Pour stops
– Sump pans
– Flute fillers
– Bent plates
– Foam closures
– Sound control acoustic batting
– Profile specific cell closures to terminate
The individual components contribute to the structural integrity, weatherproofing, or installation speed of the roofing system. Missing any one of these may postpone inspections, halt roofing activities, or undermine long-term performance.
When you are planning your order, consider what you will need in addition to the decking panels themselves. Do you require concrete edge protection? Drain openings? Insulation support? The provision of a detailed list in advance will make sure that no component of the system is left out by the time the decking comes.
Not Communicating Jobsite Restrictions
Supplier and site crew coordination is essential, particularly on commercial roofing projects where the schedule is tight and access to the site is limited. Unplanned downtime is usually caused by miscommunication regarding the timing of delivery, staging areas, or offloading equipment.
Decking bundles are heavy and need forklifts or cranes to unload. When a jobsite is not prepared to accept a full delivery or does not have the proper equipment, crews may have to be rescheduled or delayed. This raises labor prices and strains other trades.
Keystar collaborates with contractors to coordinate delivery. We offer quick turnaround on stock orders and cut-to-length decking; however, communication is key to success. Send your schedule, give the contact details of the site superintendent, and clarify the unloading process beforehand.
Neglecting Compliance and Certification Requirements
Not all roof decking is fabricated to meet certified steel construction standards. Other low-cost suppliers might provide decking that is not within Steel Deck Institute (SDI) specifications or without fire rating. This may result in rejected inspections, fines, or mandated removal of non-compliant materials on municipal or large commercial projects.
Keystar’s metal roof decking meets or exceeds SDI requirements and is available in gauges and finishes appropriate for most nonresidential construction. We are able to provide documentation to assist in code compliance, such as material test reports, and steel certification information when required.
When you are bidding on a project that has uplift resistance, diaphragm shear, or acoustic requirements, make sure those expectations are clear before you place your order. That allows us to source the correct profile, finish, and accessory combination to be code compliant.
Dependence on General Suppliers who are not Decking Experts
Perhaps the most common mistake in ordering roof decking is working with a supplier that lacks true expertise in metal deck systems. Although general building suppliers might provide a few decking products, they are usually unable to assist with the technical demands of commercial roofing work. Whether it is profile matching or accessory fit, errors here will be propagated downstream throughout the build.
Keystar Industries focuses exclusively on supplying structural metal decking and its components. We stock Type B, Type N and other deck profiles in various gauges and finishes, available to pick up or ship. We also carry the complete line of accessories that contractors require to install a complete decking system.
Ordering Roof Decking the Right Way
Avoiding common mistakes when ordering roof decking comes down to preparation, communication, and working with a supplier that knows the industry. Mistakes are expensive but avoidable with the right partner.
Our expertise in structural steel decking has made Keystar a reliable supplier of commercial contractors in the area. Whether it is same-day pick up, precision-cut panels, or certified accessories, we make it simple to get what your job needs.
Call us at 651-256-0008 or email in**@***************es.com to get started with your next roof decking order.