1 If removing and disposing of the existing roofing material isn't included in an estimate, this can add another $3-$5 a square foot or $510-$1,100 for a basic ranch-style home -- and costs go higher depending on location and the difficulty of the removal project. According to RoofHelp.com, the average lifespan for 20-year asphalt shingles is about 14 years in Phoenix, Arizona; 19.5 years in Minneapolis, Minnesota; and 20.8 years in Reading, Pennsylvania.
Excipients or inactive ingredients are supposed to be inert, which means they don't have any effect on you, but some can cause symptoms by themselvesâ and potentially allergic reactionsâor interact with the drug's active ingredients to cause unexpected results.
Fumaric Acid. Excipient (pharmacologically inactive substance) What is it? Fumaric acid (C4H4O4) is an organic acid widely found in nature, and is a component of organic biosynthesis is humans. Chemically, it is an unsaturated dicarboxylic acid. It exists as white or nearly white crystals, odorless with a very tart taste. Fumaric acid is generally nontoxic and nonirritant. Fumaric acid has been used in food and beverage products since the 1940s. Food research shows that fumaric acid can improve quality and reduce the costs of many food and beverage products. It is non-hygroscopic (absorbs no moisture).