Get matched with top chimney inspectors in Concord, CA

The lifespan of asphalt shingles is typically between 15 and 30 years, depending on the type of shingle and other factors. Standard 3-tab shingles have the shortest lifespan, around 10 to 15 years. Architectural shingles last longer, averaging 20 to 25 years. Luxury or designer asphalt shingles are the most durable, with a lifespan of 40 years or more. Climate, installation quality, and regular maintenance also play a significant role in how long your shingles will last. Signs that they need replacement include granule loss, bald spots, and roof leaks.

A chimney cap typically lasts between three and 25 years. This wide range is due to several variables, including the material it's made from, the local climate, and how frequently you use your fireplace. Living in an area with severe weather can shorten its lifespan. Regular inspections, maintenance, and minor repairs as needed can help your chimney cap last as long as possible.

It’s a good idea to have a roof inspection once every two or three years to catch issues early and avoid major property damage. However, if you recently had a new roof installed, you can safely wait around five to ten years before scheduling an inspection, especially since your workmanship warranty should last about that long. You might also want to schedule more frequent or one-off roof inspections if you are buying or selling a home, if you have issues with leaks or visible damage, or if your homeowner’s insurance company requires an updated inspection.

While you can technically install new roof sheathing over an old layer, it is generally not recommended for several reasons. Installing new sheathing over old can trap moisture, which may lead to future problems, especially in humid climates. It also adds significant weight to the roof structure and prevents you from inspecting the original sheathing for rot, mold, or other damage.

However, in some cases, if the old sheathing has been thoroughly inspected and is in excellent condition with no signs of rotting, warping, or damage, a roofer may install new sheathing over it to add strength and stability. Despite this, the more common and recommended practice is to remove the old roof sheathing entirely before installing a new layer, as removing it is not a difficult task.