You'll also hear terms like naturally occurring sugar, added sugar, low-calorie sweeteners, sugar alcohols, reduced-calorie sweeteners, processed grains, enriched grains, complex carbohydrate, sweets, refined grains and whole grains.ou may also hear sugar referred to as simple or fast-acting carbohydrate. There are two main types of sugar: 1  naturally occurring sugars such as those in milk or fruit. 2  added sugars such as those added during processing such as fruit canned in heavy syrup or sugar added to make a cookie.
Metal Roofing Materials. Metal roofing materials can last for decades without degrading in appearance or function. The oldest metal roofs in the world are over 120 years old and are still in fairly good condition. Paint and anti-rust technologies increase a metal roofâs lifespan drastically and make metallic roofs an excellent long-term investment. Residential metal roofs typically have a rated lifespan of 50 years or more. This is outstanding compared to the 15-year average lifespan of other materials.
The age of your roof is a good indicator of when you can expect to start seeing problems. Depending on the materials used, some roofs can last over 50 years. Here are typical roof life-spans in order of longevity: Real wood / Shakes have poor long-term performance, only lasting about 15 years.