Low Slopes Can Affect Shingle Appearance
Please note that the appearance of laminated, multi-layer shingles with a pronounced shadow line, such as GAF Architectural and Designer shingles, will be different on low slope roofs, and may not "show" to their best advantage. Single layer, 3-tab shingles like GAF Royal Sovereign® might be a more attractive, more affordable choice on roofs with a 2:12 or 3:12 slope, depending on appearance, style of home, and budget.
It is also important not to reduce the exposure (the portion of the shingle left uncovered by the one above it) of asphalt shingles on a low slope roof below what is typically required for higher slope roofs. Reducing the shingle exposure can affect the nailing pattern and weather resistance properties of the shingles. As such, it is not recommended.
An Alternative to Asphalt Shingles: GAF TimberSteel™
If you are working with a residential client who is interested in the durability of a metal roof but isn't thrilled with the typical standing seam aesthetic, there's a new option available.
GAF TimberSteel™ is premium quality metal roofing that marries the durability of metal with the more residential aesthetic of shingles. TimberSteel™ metal components, embossed with a vertical wood grain texture, are fabricated from GALVALUME®, which combines the high-performance qualities of steel, aluminum, and zinc for both strength and corrosion resistance.
This cutting-edge roofing material is available in a range of popular colors, and is designed for easy installation by an asphalt shingle crew, using many of the same tools. It can be applied over plywood, OSB, or wood plank (non-chamfered edge) roof decks. Another plus is that installation time is about half that of a traditional standing seam metal roof.
It's important to note that GAF TimberSteel™ requires the installation of GAF WeatherWatch® or StormGuard® leak barriers as underlayment on the entire roof. A TimberSteel™ roof can be installed on a minimum slope of 3:12, but a slope over 6:12 may affect walkability, as the product can be slippery when wet.
The GAF TimberSteel™ System is currently available for installation by GAF Metal certified contractors in North Carolina, South Carolina, and Georgia, with expansion to additional areas planned in the near future. For information on the TimberSteel™ system, including updates about availability in your area and other pertinent information about GAF products, services, programs, and promotions, sign up on the GAF website.
Navigating Roof Slopes and Shingle Options with Customers
Helping your clients achieve the aesthetic they hoped for while providing them the protection they need is the ultimate aim of each job you take on. The products and options offered through GAF can help make this easier.
Looking for additional information about GAF residential roofing materials? Explore the variety of roofing shingles available and find comprehensive data sheets, step-by-step installation instructions, warranties, brochures, and photos on the GAF website. If you have specific questions or need assistance with a particularly thorny roofing issue, call GAF Technical Services at 800-766-3411 or email technicalquestions@gaf.com.
