Roofing: Behind the “Sheets,” Part 3

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Today’s post is about insulation.

  • This is also a very important aspect in roofing. Although there are certain areas around the world, like Southeast Asia, where the normal house doesn’t require insulation, the American home finds these few layers of synthetic materials very important. ESPECIALLY during the colder months of the year. It becomes very essential for the roof to have the ability to bring in and maintain a comfortable temperature within the household. Even with a high-end thermostat, when your roof’s insulation fails to do its part properly, the comfortable house you had during the summer would be a jumbo-sized fridge for your family.
  • Essentially, the insulation materials used on your houses are found between your outer roof and your ceiling. The most common materials used in the States would be recycled paper and synthetic foam. This allows the roof to have high thermal emittance. They keep the heat from seeping out and prevent the cold from coming in. It basically keeps your house under room temperature.
  • Combined with a metal roof, good insulation materials can work even better. This is due to the fact that metals have high reflectivity which already causes heat to bounce away from the roof. Several local codes actually mandate their residents to switch their houses to “Cool Roofs”: Roofs that have both high reflectivity and high thermal emittance.

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