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Often, when a homeowner calls you for a roof repair or replacement, time is of the essence. Maybe their roof suffered storm damage, or they're selling their home, or they've found a leak that's damaging their ceiling. Whatever the reason, these time-sensitive requests require contractors who can quickly provide a roof proposal and get to work.
Wind uplift is a primary concern when installing a retrofit single-ply roof system (RSPRS) over a structural metal panel roof. ASTM E 1592 physical testing was performed on three test roof assemblies in order to determine the wind uplift resistance of an RSPRS installed over existing structural metal panel roof systems fastened directly into purlins. This paper presents the findings and conclusions of that analysis.Read the full paper Physical Testing for Wind Resistance of Retrofit Single-Ply Roof Systems Over Structural Metal Panel Roof Systems.View more white papers from GAF on our Architect & Specifier Education Resource Page.
When your peers refer to you as The Maestro, you know your career has had an impact. Erasmo 'Mitos' Fuentes—a teacher, roofer, business owner, and GAF CARE trainer—leads by example, and he represents all that is possible when you work hard and aim high.
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As social distancing eases up little by little around the country, it's time to think about getting back to work. For some contractors, that means tackling the long list of jobs that were delayed while social distancing was in effect.
Metal roofs are generally known for their low maintenance, aesthetic appeal, and a finish that protects them from sun and water damage. However, after many years, that finish may fade or deteriorate. Then the building owner must decide whether to restore or replace their roof.While there are some situations when replacement is necessary, metal roof restoration may be more accessible than many people think. And restoring your customers' metal roofs instead of replacing them could lower their overall costs while saving time and labor expenses for you.
As the first line of defense between your home and weather, your roof should be able to give you a feeling of peace, comfort, and security. But maintaining that security means taking action at the very first signs of roof water damage.
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LATEST VIDEOS FROM GAF
VIDEO ARTICLE
See for yourself – according to this recent extreme shingle testing demonstration, they're tough enough to withstand hurricane-force-winds, more water than any rainstorm will hit them with, and a continuous blast of red hot embers. Shingles with GAF Dura Grip™ Adhesive are engineered to endure.
VIDEO ARTICLE
When Hurricane Harvey struck Texas in 2017, GAF partnered with Team Rubicon to help rebuild local communities impacted by the storm. Learn how you can get involved with Team Rubicon and volunteer to support disaster relief in your area at https://TeamRubiconUSA.org/gafvolunteer
VIDEO ARTICLE
Gary Kearns of Kearns Brothers Inc, a GAF Master Elite Contractor serving the Dearborn, Michigan, area, discusses how his company's early adoption of GAF tools — including GAF SmartMoney and GAF Project — helped his company be prepared to serve customers remotely, offer financing options, and rise to the challenges of the COVID-19 pandemic.View more social distancing resources from GAF.
VIDEO ARTICLE
How do you pick the right attic vent? The first step is to check out this 60-second video and learn about the 300:1 rule, the difference between intake and exhaust ventilation, and why proper ventilation is so important to get right.To help calculate your attic ventilation needs, visit GAF Ventilation Calculator.
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
Thanks to tools like digital measurement, payment platforms, and teleconferencing, there's no need to sell from inside the customer's home. Each step of the process can be done while respecting the social distancing practices that protect your crew and your customers. Find out about GAF selling solutions — like GAF SmartMoney, GAF Project, GAF e360, and more — all designed to work with your business goals, and with each other, to help you keep protecting your customer and crews. And remember, whatever your business goal — even responsible social distancing — you can Get there with GAF.Learn more about the benefits of GAF Project.
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
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
See for yourself – according to this recent extreme shingle testing demonstration, they're tough enough to withstand hurricane-force-winds, more water than any rainstorm will hit them with, and a continuous blast of red hot embers. Shingles with GAF Dura Grip™ Adhesive are engineered to endure.
VIDEO ARTICLE
When Hurricane Harvey struck Texas in 2017, GAF partnered with Team Rubicon to help rebuild local communities impacted by the storm. Learn how you can get involved with Team Rubicon and volunteer to support disaster relief in your area at https://TeamRubiconUSA.org/gafvolunteer
VIDEO ARTICLE
Gary Kearns of Kearns Brothers Inc, a GAF Master Elite Contractor serving the Dearborn, Michigan, area, discusses how his company's early adoption of GAF tools — including GAF SmartMoney and GAF Project — helped his company be prepared to serve customers remotely, offer financing options, and rise to the challenges of the COVID-19 pandemic.View more social distancing resources from GAF.
VIDEO ARTICLE
How do you pick the right attic vent? The first step is to check out this 60-second video and learn about the 300:1 rule, the difference between intake and exhaust ventilation, and why proper ventilation is so important to get right.To help calculate your attic ventilation needs, visit GAF Ventilation Calculator.
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
Thanks to tools like digital measurement, payment platforms, and teleconferencing, there's no need to sell from inside the customer's home. Each step of the process can be done while respecting the social distancing practices that protect your crew and your customers. Find out about GAF selling solutions — like GAF SmartMoney, GAF Project, GAF e360, and more — all designed to work with your business goals, and with each other, to help you keep protecting your customer and crews. And remember, whatever your business goal — even responsible social distancing — you can Get there with GAF.Learn more about the benefits of GAF Project.
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
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
See for yourself – according to this recent extreme shingle testing demonstration, they're tough enough to withstand hurricane-force-winds, more water than any rainstorm will hit them with, and a continuous blast of red hot embers. Shingles with GAF Dura Grip™ Adhesive are engineered to endure.
VIDEO ARTICLE
When Hurricane Harvey struck Texas in 2017, GAF partnered with Team Rubicon to help rebuild local communities impacted by the storm. Learn how you can get involved with Team Rubicon and volunteer to support disaster relief in your area at https://TeamRubiconUSA.org/gafvolunteer
VIDEO ARTICLE
Gary Kearns of Kearns Brothers Inc, a GAF Master Elite Contractor serving the Dearborn, Michigan, area, discusses how his company's early adoption of GAF tools — including GAF SmartMoney and GAF Project — helped his company be prepared to serve customers remotely, offer financing options, and rise to the challenges of the COVID-19 pandemic.View more social distancing resources from GAF.
VIDEO ARTICLE
How do you pick the right attic vent? The first step is to check out this 60-second video and learn about the 300:1 rule, the difference between intake and exhaust ventilation, and why proper ventilation is so important to get right.To help calculate your attic ventilation needs, visit GAF Ventilation Calculator.
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
Thanks to tools like digital measurement, payment platforms, and teleconferencing, there's no need to sell from inside the customer's home. Each step of the process can be done while respecting the social distancing practices that protect your crew and your customers. Find out about GAF selling solutions — like GAF SmartMoney, GAF Project, GAF e360, and more — all designed to work with your business goals, and with each other, to help you keep protecting your customer and crews. And remember, whatever your business goal — even responsible social distancing — you can Get there with GAF.Learn more about the benefits of GAF Project.
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
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.
COMMERCIAL ROOFING
Metal roofs are generally known for their low maintenance, aesthetic appeal, and a finish that protects them from sun and water damage. However, after many years, that finish may fade or deteriorate. Then the building owner must decide whether to restore or replace their roof.While there are some situations when replacement is necessary, metal roof restoration may be more accessible than many people think. And restoring your customers' metal roofs instead of replacing them could lower their overall costs while saving time and labor expenses for you.
The variety of single-ply roofing membrane adhesives available gives contractors some flexibility in their choice of material. But how do you know which choice is best for your project? Environment, weather, and even the use of the building can affect which adhesive is right for the job.
There are many roof membrane types to choose from, so how do you know which one is the right solution for your roofing project? The best way to start is by understanding the different types of membranes available. Here's an overview of the single-ply membranes you can choose from and the features of each system.
BULIDING SCIENCE
Wind uplift is a primary concern when installing a retrofit single-ply roof system (RSPRS) over a structural metal panel roof. ASTM E 1592 physical testing was performed on three test roof assemblies in order to determine the wind uplift resistance of an RSPRS installed over existing structural metal panel roof systems fastened directly into purlins. This paper presents the findings and conclusions of that analysis.Read the full paper Physical Testing for Wind Resistance of Retrofit Single-Ply Roof Systems Over Structural Metal Panel Roof Systems.View more white papers from GAF on our Architect & Specifier Education Resource Page.
Is thermal mass a lost art form after centuries of use in temperate regions?In building design, the thermal mass of a building enables it to store heat, providing "inertia" against temperature fluctuations. It reduces the impact of external daily temperature swings on internal heating and cooling requirements. This thermal inertia has been an on-off again topic of discussion for some time. Proponents of adding thermal inertia point to Mediterranean area buildings constructed with thick stone walls and ceramic tile floors etc. Such buildings have kept occupants cooler than lighter weight buildings in many temperate areas of the world for centuries. In the quest to improve the energy efficiency of buildings, further gains are becoming increasingly harder to come by.
With the latest version of ASCE 7, Minimum Design Loads For Buildings and Other Structures, wind design for roof systems has become much more challenging for roof system designers and roofing contractors. This paper explores the similarities and differences between the three relevant versions of ASCE 7 and the roofing industry-developed methods to determine loads. It also provides insights regarding the application of the traditional Factor of Safety in various design methods, as well as design enhancements for improved long-term performance.Read the full paper here: Simplifying the Complicated Process of Wind Design for Roof Systems.
This blog contains information created by a variety of sources, including internal and third party writers. The opinions and views expressed do not necessarily represent those of GAF. The content is for informational purposes only. It is not intended to constitute financial, accounting, tax or legal advice. GAF does not guarantee the accuracy, reliability, and completeness of the information. In no event shall GAF be held responsible or liable for errors or omissions in the content or for the results, damages or losses caused by or in connection with the use of or reliance on the content.

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