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.
Many people expect roofs to perform for a minimum of 15 to 20 years. Some roofs can be expected to last 50 to 80 years. This means that the materials which are used for flashings must have the same, or greater, life span as the roofing material itself.