We recently interviewed Nick and Tony Renner of Renner Roofing, a GAF Master Elite* contractor in Welch, Minnesota. Ils ont fondé leur entreprise en 2016 pour servir la région la plus rurale du sud du Minnesota. We asked them about the history of their company and their experience with Timberline®HDZ™ Shingles.
GAF: Tell us about your company's history and background with using GAF products.
Renner Roofing: When we started our company, we knew we wanted to focus on providing only one manufacturer's system. We selected the GAF roofing system because of the quality of the material and the fact that they stand behind their products with strong warranties. Our business has thrived—we're installing 150 to 300 roofs a year, and 2020 has been our best year yet.
GAF: What are your main priorities when working on a project?
RR: In addition to ensuring the safety of the workers, we want a good product, quick installation, and a quality system. We feel we've found that with Timberline® HDZ™ shingles, which we use on 99 % of the projects we perform.
GAF: What are the benefits of using Timberline® HDZTM shingles?
RR: The top concern for most of our customers is shingle blow offs. It's standard to have wind gusts between 40 and 60 miles per hour in western Minnesota, and we've never had a customer report losing a shingle since we started using Timberline® HDZTM. We typically install a GAF roofing system that includes FeltBuster®, Pro-Start® starter strip shingles, Cobra® ridge vents, TimberTex® ridge cap shingles, and Timberline® HDZ™ shingles so that the shingles qualify for the GAF WindProven limited wind warranty**. The warranty provides coverage for shingle blow offs, which means peace of mind for us and homeowners.
Speed of installation is another benefit of using Timberline® HDZTM shingles. The expanded nailing area helps us fasten the shingles faster, and the quick sealing glue strip helps reduce the risk of blow offs.
For us, Timberline® HDZTM is the best product.
GAF: Do you have any tips for roofing contractors using GAF products?
RR: We have three tips for anyone using Timberline® HDZTM:
- Make sure you have a spotless roofing surface. Remove all nails and debris from the roofing deck before installing the underlayment. The roof system should be tight and flat to the roof deck to help prevent interference with the shingles properly sealing.
- The underlayment must always be installed properly to help avoid the potential for wrinkles that can create a poor finished appearance.
- Don't lay pallets of shingles across ridges on steep slopes. The combination of heat and the slope can create creases or bubbles in the shingle that interfere with sealing. Make sure all shingles are laid flat while waiting for installation.
GAF: What has been your experience with Timberline® HDZTM in cold weather?
RR: Minnesota is no stranger to cold weather, so we've installed it in temperatures down to 40 degrees, but we don't recommend installing at temperatures below that. We've installed plenty of roofs in the 40- or 50-degree Fahrenheit range and haven't had any issues with the shingles sealing.
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The Renners trust the GAF Timberline® HDZTM roofing system to help protect homes from wind and rain. They are passionate about the GAF system—after all, they did their research, and their customers are just as happy with their choice.
This interview was edited and condensed.
*Les entrepreneurs inscrits aux programmes de certification de GAF ne sont pas des employés ou des agents de GAF, et GAF ne contrôle ni ne supervise ces entreprises indépendantes. Les entrepreneurs peuvent recevoir des avantages, tels que des points de fidélité et des remises sur les outils de marketing de GAF pour avoir participé au programme et offert des garanties améliorées GAF, qui exigent l'utilisation d'une quantité minimale de produits de la marque.
**15-year WindProven™ limited wind warranty on Timberline® Shingles with LayerLock™ Technology requires the use of GAF starter strips, roof deck protection, ridge cap shingles, and leak barrier or attic ventilation. Voir la Garantie limitée pour système de toiture afin de connaître l'étendue de la protection et les restrictions. Visitez gaf.com/LRS pour connaître les produits GAF admissibles.
