Comparing GAF Timberline® UHDZ™ vs. HDZ® Shingles

When developing a new roofing product, it's important to ensure it meets the local roofing codes and requirements in multiple jurisdictions. These standards are often regionally similar, but some may require additional testing or the use of certain raw materials. The product development team at GAF works hard to ensure products meet some of the strictest codes, so they can provide years of protection no matter where they're installed.Jeremiah Hershberger, GAF product manager of residential accessories, recently discussed the role codes and standards play in residential roofing product development, specifically concerning roof vent code requirements.Why Are Product Codes and Standards Important?The main purpose of building codes and standards is to maintain public health, safety, and welfare in all structures. They do this by ensuring that buildings are constructed in such a way as to minimize potential hazards, like fire, structural failure, or storm damage.Building codes exist to improve the safety and livability of buildings. They set minimum requirements for the materials and systems installed, as well as their installation methods. In the US, building codes are upheld and enforced by state, county, and city governments through the permitting and inspection processes.Standards also provide minimum design and performance metrics for products and systems. However, unlike local building codes, they are often universally upheld (nationally or worldwide). Organizations like ASTM International and the National Fire Protection Association are responsible for creating, updating, and communicating these standards. Local building codes often use these standards to set minimums for product and installation quality.How Do Roofing Codes and Standards Affect Product Development?"The goal of product development at GAF is to provide enhanced value for our customers and contractors," Hershberger explains. Ultimately, customers need to be confident in the performance of GAF products and building codes and standards provide a minimum threshold for product performance. Accordingly, they must be taken into consideration when designing products.Codes are prescriptive performance requirements for buildings. They include both the materials used to construct the building and how they're installed. All products used in a particular building must meet the local code requirements for that county or city.Standards are used as bases of comparison. Types of standards include:Testing standards that define methods and minimum acceptable resultsRating standards that provide a way to fairly compare productsDesign standards that set the criteria for specific roof system designsWhen products are developed for use in many geographic areas, they must meet several locations' requirements. For instance, when developing a new off-ridge ventilation product, GAF considers not only how much net free area (NFA) the unit will have, but also the performance characteristics required to meet Florida Building Code, Texas Department of Insurance (TDI), and Miami-Dade standards so the product can be used in areas that adhere to those codes.Why Does GAF Pay Attention to Codes and Requirements?"We want our customers to be confident in the performance of our products not based solely on our word but also on the basis of third-party standards that level set the industry," notes Hershberger. "Codes and testing requirements provide customers with that outside assurance that our products will hold up to the environmental rigors of a specific region or location."For example, TAS-100(A) tests a product's performance in wind-driven rain. The test provides information on how well a ventilation product will perform in such an environment and helps the product development team learn how likely it is that a ventilation product might leak, so we can then mitigate that risk.How Do Codes Affect Product Quality?Codes may specify what raw materials can be used to make a product or how it will perform in certain standardized tests. For instance, ASTM E108 or ANSI/UL790 Class A roofing fire ratings require a high degree of fire protection to the roof deck, which directly affect the materials used to produce these products. Similarly, the UL 2218 Class 4 impact test or the ASTM E330 Uplift Pressure Test show how a product performs under naturally occurring forces (e.g., hail or wind)"GAF strives to find the balance between performance, strength, and ease of installation (or handleability)," Hershberger says. "This often leads us to develop products that use higher grade materials (better performance over time), are simpler to manufacture with fewer points of potential failure, and are easier to install correctly (ensuring repeatability)."How Codes Affect the Development of High-Quality Roof VentsCreating high-quality roof vents and rooftop accessories didn't occur by accident. The GAF development team focuses on roofing codes and requirements through an intentional design process to drive innovation. From product ideation to design, development, and launch, the team ensures products meet or exceed several codes and standards, including:Florida Building CodeSets minimum performance standards for roof construction, such as wind resistance, fire performance, and roof ventilation requirements. Products must be approved by the state before being installed.Miami-Dade CountyThis county in Florida has some of the strictest building codes in the country due to its classification as a High-Velocity Hurricane Zone. Products used there must also be approved by the county as meeting not only Florida Building Code, but the stricter county requirements.Texas Department of Insurance (TDI)Regulates insurance companies and the insurance/claims process in the state of Texas. Roofing products are evaluated based on TDI-adopted building specifications regarding products used and installation methods.Other tests performed to ensure product performance include:TAS-100(A). Determines the water infiltration resistance of a ridge area ventilation system (ridge vents, static vents, turbines, or powered vents).Simulated snow/ice dam. Ice dams can form when a roof is not properly ventilated, leading to snow melting and refreezing along the lower edge of the roof.UL2218 Class 4 impact test. The UL2218 test is a steel ball drop test that evaluates the impact resistance of roof coverings. Class 4 products are shown to withstand the 20-ft drop of a 2-inch diameter steel ball without cracking through significant damage.Ensuring Roofing Products Are Up to the TaskThe product team at GAF routinely performs these tests to ensure roofing materials meet local roofing code requirements. The company then makes the results publicly available, helping customers nationwide rest assured that they can rely on GAF roofing products to perform as expected.For more information on the GAF ventilation products that meet or exceed code requirements, explore the ridge and off-ridge ventilation offerings.

Protecting what matters most includes promoting the career growth of roofing industry professionals like you. That's why GAF offers a wide range of learning opportunities, including CARE courses, online training, in-person training, and roofing summits and expos.Recently, third generation roofer, Jeremy Simpson of Simpson Roofing Company, spent a day at the GAF Northeast Roofing Summit and Expo to learn more about the latest updates in the residential roofing industry. While the majority of the work the Simpson Roofing Company does is commercial, they are always looking for ways to expand their knowledge by learning about innovative ideas, new products, new software, and new technology in the residential space.Simpson attended breakout sessions on topics including Principles of Ventilation, AI in CRM, and Sales. "I love coming to these GAF summits, because they really line up all the pertinent info for your business to succeed" says Simpson, "I promise you it's worth its weight in gold!"To learn more about on demand, hands-on, and in-person training opportunities through GAF, visit our CARE Contractor Training Center.Video TranscriptMy name is Jeremy Simpson from Simpson Roofing Company. We are out of Vernon, New Jersey, and Patterson, New Jersey, two locations. Today, I'm here at the GAF Summit, and I'm looking to just learn new things. We are a third-generation roofing company. We predominantly do commercial, but all throughout the years, we've done residential. That's why we're here today at this event. We're trying to get updated on the new stuff that's coming out, specifically from GAF. Innovative ideas, new products, new software, new tech. So follow me along today as we explore the GAF summit.[00:00:45]Today, we're going into the principles of ventilation. Designs change, architecture changes, and you need new ways of ventilating. And I don't know all of them. So I want to get some info and see what GAF has to offer as far as new products and new thoughts on how to move the air around. So we just got out of our first breakout session about ventilation. A lot of math, a lot of numbers going into the calculations of moving air around in your attic space to have a really good performed roof system. I didn't know all those details. Now I know, got to use it going forward from there.[00:01:19]I just got out of the AI CRM breakout session there. A little bit of an information overload, and that was a good thing because it really showed me how much I was missing the CRM and AI, it's the future. It's coming.[00:01:37]So I just got out of the third and final breakout of today's GAF Summit, and it was about sales, and it was very interesting to see the different dynamics that take place in the residential market when you're dealing with a homeowner versus something commercial, where oftentimes you don't even get to see who you're selling to. So to find out those little intricacies inside that process was super insightful. The best part of today was everything. I love coming to these GAF summits because they really line up all pertinent information for your business to succeed.[00:02:11]Thank you so much for tagging along today. It was super fun for me. I hope you got a little bit out of it as well. And if you ever find a time to come out to one of these GAF summits, I promise you it's worth its weight in gold.

If you're like many roofing contractors, you might avoid insurance restoration work due to the expense, hassle and complication of creating an estimate. That is, until now. The GAF ScopeConnectSM service simplifies the creation of an insurance scope of work so you can take on restoration work with more ease.Using Cutting-Edge Technology to Facilitate EstimatesGAF is committed to making tools available that help roofing contractors succeed. The GAF ScopeConnectSM Service addresses some of the challenges many contractors face with insurance restoration work.The service delivers a complete insurance scope of work prepared by Symbility trained and Xactimate certified estimators. Any contractor—GAF-certified or not may use the service and receive an estimate within 24 hours*. You don't need specialized training, dedicated personnel, or a subscription.Putting Insurance Restoration Work within ReachAs the country continues to see more severe weather events, contractors have the opportunity to expand into the insurance restoration market. The GAF ScopeConnectSM Service removes some of the barriers that typically have made it difficult to enter this space.To use the service, you simply provide a property's address and answer a few questions. Within a day, you'll receive the scope of work needed for the job in an insurance industry standard format (e.g., Xactimate or Symbility).The GAF ScopeConnectSM Service has enabled GAF Certified Contractor* Owen McKinney, who owns Rodger That Home Improvement LLC in Fayetteville, North Carolina, to do more insurance restoration work. He had previously walked away from these jobs due to the complexities involved with estimates.Leveling the Field for Roofing ProfessionalsSince preparing estimates in an industry-standard format yourself requires special software and training, McKinney was at a disadvantage. He didn't have the budget to pay for the license or the spare time to learn the program. As a result, he resorted to searching for specialists familar with the software on social media and paying them to develop the estimates. While this method worked, it was inefficient and not cost-effective for him.McKinney's GAF territory manager first showed him the new service over lunch. On the day it launched, McKinney happened to be working on an insurance restoration job, so he decided to try it. McKinney shared that on the first project that he used it on, the GAF ScopeConnectSM service accurately estimated the job.Removing Barriers through Ease of UseThe intuitive design and functionality provided by GAF ScopeConnectSM impressed McKinney right away. He notes that it feels difficult to make errors while using the service."Essentially, you just type in the property address, note that it's got X amount of pipe boots, X amount of vents, one or two layers of shingles, and it gives you a breakdown."McKinney says that, in his opinion, the accuracy has been spot-on. And thanks to the success he's had, he plans to use the GAF ScopeConnectSM service for future insurance restoration jobs. "And the fact that they can do it within 24 hours,** that's fantastic."Growing Your Business's Restoration WorkloadIf you've been thinking about expanding your operations and adding more jobs through insurance restoration work, now is the time. The GAF ScopeConnectSM service provides the detailed estimates you need to succeed so you can take on these jobs with confidence.Curious to learn more? Visit gaf.com/scopeconnect to see a sample scope of work.*Contractors enrolled in GAF certification programs are not employees or agents of GAF, and GAF does not control or otherwise supervise these independent businesses. Contractors may receive benefits, such as loyalty rewards points and discounts on marketing tools from GAF for participating in the program and offering GAF enhanced warranties, which require the use of a minimum amount of GAF products. Your dealings with a Contractor, and any services they provide to you, are subject to the Contractor Terms of Use. Visit www.gaf.com/gaf-contractor-terms-of-use for details.**Terms and restrictions apply. Visit gaf.com/scopeconnect for details.