Many people think of mold as more of a nuisance than anything else. Mold is seen more as a sign that a certain part of the house is damp than anything else. It may damage a few clothing items, but it's not likely to do much else, right?
As it turns out, mold is not as innocent as it seems. Many people are unaware of how dangerous mold can be because it's often dealt with quickly.
When you decide to replace your asphalt shingle roof, you have the option of either removing your roof and replacing it or overlaying your existing roof with a new layer of shingles. When you overlay your roof, you won't have to pay the labor costs associated with removing your current roof — this can save you a significant amount of money on roof replacement. However, overlaid roofs can experience a number of problems that typically make a complete roof removal and replacement a better decision.