How Old Should A Roof Be

Not surprisingly cheaper roofing materials won t.

How old should a roof be. Asphalt shingles composite shingles metal roofs and other materials all have different life spans. If your roof is nearing its typical replacement age you should probably start thinking about your next roof. Knowing when a roof was installed and what it s made of offers insight into how much life it has left. The roof just looks old and worn.

Wood shingle roofs should be expected to last about 15 25 years depending on the quality. Asphalt shingle composition roofs last approximately 20 years or even longer depending on the type and if they are well maintained and properly installed. It also depends on whether the old roof was removed and you only have one layer of shingles and if it is properly ventilated. While many types of roofs last longer than 15 years some can hold up well for 50 years or longer barring a serious storm or a large fallen tree.

Metal or tile roofs tend to have a longer lifespan. And weatherization plays a large part in determining how often roofs need to be replaced. An asphalt shingle roof should last between 20 and 30 years says claude mcgavic executive director of the national association of home inspectors. Visible signs of aging on a 3 tab asphalt shingle roof.

While many shingles today are produced for durability many factors can accelerate the aging of shingles. If you have a 40 year old roof there could be. If the roof was installed over another layer or several layers and it is older than 20 years chances are you need a new roof. The average asphalt shingle roof lasts about 12 to 15 years.

For example if your roof is not properly ventilated it can negatively impact your shingles. For instance a typical asphalt shingle roof lasts 20 to 25 years while a roof installed. Slate and tile roofs can last more than 50 years.