De qué manera la pendiente de sus techos determina sus opciones de materiales de techado
La pendiente del techo es un aspecto de suma importancia y se considera como el factor principal en el diseño del mismo. En general, los tipos de techo y productos para techos suelen dividirse en dos categorías principales, techos de pendiente pronunciada y de pendiente baja. Steep slope roofing is generally referred to as “residential roofing” due to the fact that most single family homes in the U.S. are framed with a steep slope roof pitch. On the other hand, low slope roofing is most often referred to as “commercial roofing” because, predominantly, commercial buildings have flat roof designs – yet many residences in North America do have low slope roofs.
Whether steep or low, the slope of a roof has an effect on the interior volume of a building, the drainage, the style, and – most importantly – the material used for covering.
What is roof slope?
The slope of a roof, often referred to as the pitch, is determined by “rise over run” - the roof’s vertical rise in inches for every twelve inches of horizontal length (the run). So a roof with four inches of rise every 12 inches horizontally (run) would have a slope of 4/12 (sometimes displayed as 4:12). The list below contains the common roof slopes and the terms which classify them:
- Techo plano: 2/12
- Pendiente baja: 2/12-4/12
- Techo de pendiente convencional: 4/12-9/12
- Pendientes más inclinadas: 9/12 – 20/12
- Pendiente empinada: 21/12 and higher
Steep Slope Roofing Products
Los productos para techos de pendiente pronunciada generalmente son más atractivos visualmente, ya que son componentes estéticos críticos de la construcción residencial, donde el techo puede constituir el 40 % de la apariencia visual exterior de una casa. Los techos de pendiente empinada también por lo general duran más tiempo que los techos de pendiente baja debido a que los sistemas vierten el agua de manera más eficiente y por lo general están sujetos a actividad UV menos directa.
Low Slope Roofing Products
Los techos residenciales de pendiente baja se dividen generalmente en dos categorías principales: larger flat roofed applications (low slope) such as residential condominium complexes, row homes, and town houses; and smaller applications such as residential porch and garage transitions from the main home where the slope of the roof changes dramatically from steep slope to low slope on the same structure.
For the larger residential low slope roofing applications, CertainTeed has a host of products and systems available including BUR (Built-Up Roofing) systems, APP Modified Bitumen systems, and SBS Modified Bitumen systems, including Cool Roofing and Energy Star compliant products that may qualify for federal tax rebates when installed as a residential low slope roofing product.
For the smaller residential low slope roofing applications such as garage and porch transitions, CertainTeed offers an excellent solution in the Flintlastic® SA, self-adhering SBS modified bitumen roofing system. Los productos Flintlastic SA cuentan con una aplicación fácil y limpia y también tienen superficies granuladas con colores que coordinan con las tejas CertainTeed proporcionando al propietario de casa una solución completa y coordinada para diseños de tejado que hacen transición de pendiente empinada a baja.
