How Often To Replace Your Roof

Here are some common estimates to take into consideration for how often to replace a residential or commercial roof.

How often to replace your roof.

These suggested time frames will vary depending on the climate that the roof is exposed to. Below are some different roof types their estimated lifespans and their relative cost. When your roof is between 20 and 25 years old you should start thinking about a replacement. It also depends on whether the old roof was removed and you only have one layer of shingles and if it is properly ventilated.

By this time it has undergone significant wear. In general this is the recommended replacement schedule based on the material used. Most experts agree that a typical roof will last between 20 and 25 years. All this affects even the best kept roof after such an extended period.

You should get a roofing contractor to perform a roof inspection every year to see what condition your roof is in and tell you if it needs 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. 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. A more expensive roof will last you longer and you won t have to maintain it as often.

Knowing when a roof was installed and what it s made of offers insight into how much life it has left. After 45 75 years slate roofing is rarely subject to an entire roof replacement. For instance a typical asphalt shingle roof lasts 20 to 25 years while a roof installed. An annual inspection is prudent as repairing small defects such as broken tiles or loose fastenings will ensure a long lasting roof.

Galvalume or metal roofing materials have an estimated lifespan of 30 to 45 years and concrete tile generally lasts between 30 and 50 years. It has weathered three decades of storms wind and rain plus snow in the winter and heat in the summer. Tile roofs are also very durable and rarely need a full replacement. You can expect architectural asphalt shingles to last a bit longer at an average of 25 to 30 years.

Two major signs of imminent roofing replacement are powdering on the underside and major delamination or flaking. Things to consider when replacing a roof. Most roofs with asphalt shingles will last an estimated 15 to 20 years. How often should you replace your roof.

If you have a 40 year old roof there could be. An average roof needs to be replaced after 15 50 years depending on the material used ventilation and climate factors like humidity heat and cold. When determining how long your roof will last there are several important factors to keep in mind.