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Snow guards play a pivotal role in safeguarding properties in regions that experience snowfall. Their primary function is to prevent large sheets of snow from sliding off roofs, which can cause damage to gutters, fascia, and even pose risks to individuals below. In this comprehensive guide, we delve into the intricacies of snow guards, their types, and their significance.
Understanding the Need for Snow Guards
In areas like southeastern PA, snowfall is a common occurrence. While the snow might not accumulate in massive quantities, a few snowstorms each winter are typical. As the snow begins to melt due to the sun and rising temperatures, it can sometimes slide off roofs in large sheets. This phenomenon is particularly prevalent on roofs made of materials like metal and slate, which have smoother surfaces compared to shingles. As the snow melts, it binds together, increasing its weight and propensity to slide off the roof in large chunks.
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What Exactly Are Snow Guards?
Snow guards are devices specifically designed to retain snow on the roof, allowing it to melt gradually. By doing so, they prevent the snow and ice from sliding off, which could otherwise damage gutters or even pose a threat to individuals below. These devices are sometimes referred to as snow birds, snow stops, or snow cleats. Their primary purpose is to counteract roof snow slides.
Types of Snow Guards
There are two primary types of snow guards:
- Snow Birds: These are smaller, seashell-like metal devices, typically measuring 2-3 inches in height. The ideal size is determined by the expected snow load in a particular area. Their installation method varies based on the roofing material. For instance, on Standing Seam metal roofs, they are fastened to the rib or the upright portion of each seam. On other metal panel roofs, these guards come with a rubber foot, which is fastened through the metal panel into the roof deck using screws. This rubber pad ensures a watertight seal. For materials like slate, the snow guards come with a long flange, which is fastened to the roof deck and concealed by the overlapping row of slate above.
- Snow Rails: These are continuous rails installed on roofs expecting heavier snow loads. They are designed to retain more snow on the roof. Snow rails are commonly found on commercial metal roofs, which typically have larger surfaces and therefore need to accommodate extra snow load.
Do You Require Snow Guards?
For those with metal roofs in areas that witness regular snowfall, snow guards are highly recommended. They are essential in protecting your gutter system from detaching due to the weight of falling snow loads. Moreover, large amounts of snow and ice falling from a roof can inflict significant damage on vehicles and other objects situated below the gutters. Snow guards become even more crucial in areas where foot traffic is expected beneath the roof.
For shingled roofs, snow guards are generally not required. However, if a property has experienced a roof avalanche from a steeply pitched roof, the installation of a few snow guards might be advisable. Especially for shingled roofs with a pitch steeper than 6/12 located in regions with potential for heavy snow loads, a snow retention system should be considered.
Partner with Equity Roofing for Expert Solutions
Whether you're considering installing a new metal roofing system or you already have one and are contemplating adding snow guards, Equity Roofing is here to assist. As one of the leading Central Pennsylvania roofing contractors, we pride ourselves on delivering top-notch Central PA roofing services. Our team of expert Central PA roofers is committed to ensuring the safety and longevity of your roof.
Reach out to Equity Roofing today for a consultation and discover how we can enhance the safety and durability of your roofing system.
Read also our blog on Top Roofing Trends to Watch in 2023.