Roof Shingles

There are many types of composition shingle roofs, typically made from asphalt or fiberglass materials embedded with mineral granules that help protect against the sun’s damaging ultraviolet rays. Manufacturers generally warrant these roofs to last between 20 and 30 years, while installers often provide a leak guarantee for 2 to 5 years. However, the actual lifespan of a roof can vary significantly based on several factors beyond material quality and installation methods. Poor maintenance is the leading cause of roof failure, but other contributors include prolonged southern exposure and the practice of installing new shingles over an existing layer.

roof shingles cupping

One of the first signs of significant roof wear is the loss of granules, which results in pockmarks or dark spots on the shingles. This process, known as primary decomposition, indicates that the roof is beginning to deteriorate and may become vulnerable to leaks. It typically starts with the hip and ridge shingles, as well as field shingles on the south-facing side. While this doesn’t necessarily mean the roof needs immediate replacement, the underlying causes of deterioration should be addressed promptly. Regular shingle maintenance can extend the life of the roof and help prevent leaks, which often go unnoticed until they’ve caused interior damage.

Please note that, in accordance with home inspection industry standards, my inspection does not include a guarantee against roof leaks. For such assurance, you would need a roofing contractor to perform a water test and provide a roof certification. That said, the sellers or occupants usually have the most detailed knowledge of the roof’s condition, so I recommend asking them about its maintenance history.

If you’d like your roof shingles to reach their full expected lifespan, I recommend following the guidelines outlined on the following web pages.

ROOF MAINTENANCE

ROOF VENTILATION

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Here is what my clients have to say about my home inspection services:

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Buying a home is arguably the most important, exciting and nerve-wracking purchase a person will ever make. This is the reason you need a great home inspector, and Dave Valley is just that. He is empathetic – he understands and appreciates the various emotions a potential home-buyer goes through. Most importantly, Dave provides you with objective information so you can make the most informed decision possible.

It was a pleasure working with Dave – he contains all the qualities that make a great home inspector – he is the consummate professional, prompt, courteous, meticulous in his detail and honest. Dave was reasonably priced – in fact Dave charged me the same amount I spent 10 years earlier on a smaller house and provided a far better work product.

Prompt

I arrived at the house at the agreed upon time on a cold and nasty day, and found Dave outside inspecting the exterior of the home. He was already a half hour into his inspection – I think this exemplifies and is symbolic of the fact that Dave is respectful of his client’s time.

Courteous

Dave was pleasant to deal with, personable and thoughtful not only to his client but also to the buyer’s real estate agent.

Detail-oriented

Dave spent almost four hours in his investigation of a 2,000 square foot house. He answered all my questions and reviewed every observation he had with me. David provided a detailed report, and encouraged me to call and email him to discuss the report and to ask questions.

Conclusion

The highest compliment I can give Dave is to say that I would use him again and will encourage and recommend him to others.

Michael S. Giaimo