Depending on the climate where the house is located, an asphalt shingle roof lasts anywhere from twenty to thirty years. Due to the long lifespan of the roof, many homeowners do not think about replacing it before the shingles significantly deteriorate. If a home has a shingle roof that displays any of the signs below, consult with a provider of roofing maintenance to determine whether the home needs roof replacement.
Loss of Shingle Granules
Loss of shingle granules is one of the first signs that shingles will need to be replaced soon. Initially, the loss of granules can be detected by inspecting the inside of the gutter. Because the granules are dense, they often sit in the trough as water runs over them. As the loss of granules progresses, shingles reveal their asphalt composition and darken. If the roof on a home has gradually darkened, the loss of shingle granules may be the cause.
In hot climates, shingle roof systems commonly develop small blisters that can fill with water. Although water filled blisters are more common on flat commercial roofs, they can occur on shingle ones as well. Over time, blisters that contain water may release moisture into the deck, and cause it to sag. Although severely blistered shingles may succeed at deflecting water for a few more months, having a provider of roof maintenance perform a roof replacement will prevent the roof deck from needing to be replaced, which is a significant expense considering the level of materials and labor that are involved.
Shingles may buckle for several reasons, including moss growing under the outer edge of the shingle, storm damage, and damage to the roof deck. Regardless of the cause of the buckling, it should be inspected as soon as possible to prevent significant leaks form developing. Buckled shingles have actually been displaced from their normal position, which allows water to flow underneath them and causes leaks that are visible on the inside of the ceiling.
Curling, which typically occurs from long-term weather exposure, signifies the last phase of a shingle’s life. The curling begins at the front edge of the shingle, and may reach a point where the shingle appears almost cylindrical when it is viewed from the side. Some homeowners make the mistake of trying to nail curled shingles back in place. If the shingles do not crack from being plied back into place, the nails that hold them will cause small leaks. If enough nails are used, the entire deck could become saturated.
No homeowner likes to think about roof replacement, but after twenty to thirty years, most asphalt shingle roofs need to be replaced. If the shingles on a roof display a loss of granules, blistering, buckling, or curling, they are nearing – or have reached – the end of their lifespan. To prevent a home from experiencing water damage that is expensive to repair, have its roof inspected by a provider of roofing maintenance today.