Commercial Roofing

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Construction planning through to completion can be tricky to coordinate, especially within an urban area, which can present a range of complications. Building proximity, tall building heights, complex building structures, and densely populated areas are just a few challenges that can make it particularly difficult to consider traditionally heavy or large-sized materials when roofing or re-roofing a building.
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Construction planning through to completion can be tricky to coordinate, especially within an urban area, which can present a range of complications. Building proximity, tall building heights, complex building structures, and densely populated areas are just a few challenges that can make it particularly difficult to consider traditionally heavy or large-sized materials when roofing or re-roofing a building.
When it comes to commercial roofing, the options are plentiful—but not every option is suited for every building. Each building has unique needs that factor into which types of roofing may be suitable for a given project. Here is an overview of what goes into a commercial roof as well as the material options available.
When designing and specifying a low-slope roofing system, it's important to consider the roof system's ability to resist external fire. Now, there are products available that can provide the necessary fire rating for your roofing system while also helping your building achieve credits toward LEED certification.
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Construction planning through to completion can be tricky to coordinate, especially within an urban area, which can present a range of complications. Building proximity, tall building heights, complex building structures, and densely populated areas are just a few challenges that can make it particularly difficult to consider traditionally heavy or large-sized materials when roofing or re-roofing a building.
When part of your building's roof has a flat section covered with a traditional low-slope roofing material (such as single-ply or modified bitumen membranes), while another part of the building's roof is steep-slope and covered with asphalt shingles, we refer to that as a "mixed roof."
Roof to wall flashing is critical to the performance of every single-ply roofing system. These transition points, where the flat part of the roofing system is tied into the parapet wall, are potentially vulnerable areas for water intrusion. Following the requirements for proper flashing can help ensure that the roof system offers better protection.
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VIDEOS FROM GAF
VIDEO ARTICLE
When a building owner asks you if they need a commercial roof repair or replacement, your assessment of the roof's condition hinges on a few key areas. Veteran commercial roofing experts Dave Scott and Wally Brown share their roof inspection expertise in GAF's Roofing It Right with Dave and Wally: Roof Project from Start to Finish video series to help you assess the condition of critical areas on the roof.
VIDEO ARTICLE
See how a commercial roof gets measured thoroughly and safely, as GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) gather the numbers they need to reroof 20-year old PVC membrane roof. Check out Part 3 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries.
VIDEO ARTICLE
Whether you're an experienced commercial roofer, a steep-slope roofer thinking of adding low-slope services, or just like to learn from the best, you'll want to join GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) for the "Project Kick-Off" segment of the Roofing it Right miniseries on installing a commercial roof, from start to finish.
VIDEO ARTICLE
Working with the GAF Tapered Design Group, GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) evaluate a plan for optimizing roof drainage using tapered ISO insulation. See how it all comes together in Part 4 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries.
VIDEO ARTICLE
When removing a roof, pros learn to expect the unexpected. In this video, GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) and their crew discover how water infiltration has impacted fasteners, insulation, and even the underlying metal deck. Watch the tear off in Part 5 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish Miniseries.
VIDEO ARTICLE
The success of any tapered ISO design plan depends on precision installation. Watch GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) carefully piece together an effective roof drainage solution in Part 9 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries here.
VIDEO ARTICLE
From seam direction to welding robot heat calibration to countering wind resistance, proper TPO installation is an art and a science. Watch GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) as they install a TPO membrane in Part 8 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries here.
VIDEO ARTICLE
Installing tapered ISO requires careful attention to the tapered design plan. Watch GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) as they apply the plan they received from the GAF Tapered Design Group to the actual roof, in Part 8 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish Miniseries.
VIDEO ARTICLE
After your roof tear off, pros learn to expect the unexpected. In this video, GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) and their crew take a look at the condition of the roof deck after a roof tear off and provide reocommendations on what to look out for.Watch the full Roof Project from Start to Finish Miniseries.
VIDEO ARTICLE
Join GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) on a commercial roof inspection as they identify the good and bad on a 20-year old PVC membrane roof. Welcome to Part 2 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish Miniseries.
VIDEO ARTICLE
When a building owner asks you if they need a commercial roof repair or replacement, your assessment of the roof's condition hinges on a few key areas. Veteran commercial roofing experts Dave Scott and Wally Brown share their roof inspection expertise in GAF's Roofing It Right with Dave and Wally: Roof Project from Start to Finish video series to help you assess the condition of critical areas on the roof.
VIDEO ARTICLE
See how a commercial roof gets measured thoroughly and safely, as GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) gather the numbers they need to reroof 20-year old PVC membrane roof. Check out Part 3 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries.
VIDEO ARTICLE
Whether you're an experienced commercial roofer, a steep-slope roofer thinking of adding low-slope services, or just like to learn from the best, you'll want to join GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) for the "Project Kick-Off" segment of the Roofing it Right miniseries on installing a commercial roof, from start to finish.
VIDEO ARTICLE
Working with the GAF Tapered Design Group, GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) evaluate a plan for optimizing roof drainage using tapered ISO insulation. See how it all comes together in Part 4 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries.
VIDEO ARTICLE
When removing a roof, pros learn to expect the unexpected. In this video, GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) and their crew discover how water infiltration has impacted fasteners, insulation, and even the underlying metal deck. Watch the tear off in Part 5 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish Miniseries.
VIDEO ARTICLE
The success of any tapered ISO design plan depends on precision installation. Watch GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) carefully piece together an effective roof drainage solution in Part 9 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries here.
VIDEO ARTICLE
From seam direction to welding robot heat calibration to countering wind resistance, proper TPO installation is an art and a science. Watch GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) as they install a TPO membrane in Part 8 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries here.
VIDEO ARTICLE
Installing tapered ISO requires careful attention to the tapered design plan. Watch GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) as they apply the plan they received from the GAF Tapered Design Group to the actual roof, in Part 8 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish Miniseries.
VIDEO ARTICLE
After your roof tear off, pros learn to expect the unexpected. In this video, GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) and their crew take a look at the condition of the roof deck after a roof tear off and provide reocommendations on what to look out for.Watch the full Roof Project from Start to Finish Miniseries.
VIDEO ARTICLE
Join GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) on a commercial roof inspection as they identify the good and bad on a 20-year old PVC membrane roof. Welcome to Part 2 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish Miniseries.
VIDEO ARTICLE
When a building owner asks you if they need a commercial roof repair or replacement, your assessment of the roof's condition hinges on a few key areas. Veteran commercial roofing experts Dave Scott and Wally Brown share their roof inspection expertise in GAF's Roofing It Right with Dave and Wally: Roof Project from Start to Finish video series to help you assess the condition of critical areas on the roof.
VIDEO ARTICLE
See how a commercial roof gets measured thoroughly and safely, as GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) gather the numbers they need to reroof 20-year old PVC membrane roof. Check out Part 3 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries.
VIDEO ARTICLE
Whether you're an experienced commercial roofer, a steep-slope roofer thinking of adding low-slope services, or just like to learn from the best, you'll want to join GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) for the "Project Kick-Off" segment of the Roofing it Right miniseries on installing a commercial roof, from start to finish.
VIDEO ARTICLE
Working with the GAF Tapered Design Group, GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) evaluate a plan for optimizing roof drainage using tapered ISO insulation. See how it all comes together in Part 4 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries.
VIDEO ARTICLE
When removing a roof, pros learn to expect the unexpected. In this video, GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) and their crew discover how water infiltration has impacted fasteners, insulation, and even the underlying metal deck. Watch the tear off in Part 5 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish Miniseries.
VIDEO ARTICLE
The success of any tapered ISO design plan depends on precision installation. Watch GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) carefully piece together an effective roof drainage solution in Part 9 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries here.
VIDEO ARTICLE
From seam direction to welding robot heat calibration to countering wind resistance, proper TPO installation is an art and a science. Watch GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) as they install a TPO membrane in Part 8 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish miniseries here.
VIDEO ARTICLE
Installing tapered ISO requires careful attention to the tapered design plan. Watch GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) as they apply the plan they received from the GAF Tapered Design Group to the actual roof, in Part 8 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish Miniseries.
VIDEO ARTICLE
After your roof tear off, pros learn to expect the unexpected. In this video, GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) and their crew take a look at the condition of the roof deck after a roof tear off and provide reocommendations on what to look out for.Watch the full Roof Project from Start to Finish Miniseries.
VIDEO ARTICLE
Join GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) on a commercial roof inspection as they identify the good and bad on a 20-year old PVC membrane roof. Welcome to Part 2 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.Watch the full Roof Project from Start to Finish Miniseries.
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