A new roof can be a significant investment for any property owner, and the decision of whether or not to remove the old shingles before installing new ones can be a tough one. Many people opt to leave the old shingles on to save money on labor costs, but this decision can lead to a host of problems down the road. In this blog post, we'll discuss the benefits of removing old shingles before installing new ones and explore the various types of shingles available on the market.
First and foremost, removing old shingles before installing new ones can improve the longevity and durability of your new roof. If you install new shingles over old, damaged shingles, any underlying issues will not be addressed, and you'll be left with a roof that is likely to fail prematurely. Removing the old shingles allows for a proper inspection of the underlying structure, which can reveal any problems that need to be addressed before the new shingles are installed.
Another major problem with installing new shingles over old ones is the added weight. Multiple layers of shingles can put a significant strain on the underlying structure, which can lead to sagging and even collapse in some cases. In addition, multiple layers of shingles can trap heat and moisture, which can lead to rot and decay over time.
Lastly, installing new shingles over old ones may void the shingle warranty. Most shingle manufacturers offer warranties that become void if the shingles are installed over existing shingles.
Now let's discuss the various types of shingles available on the market. The most common types of shingles are asphalt and fiberglass. Both types are relatively affordable and can last up to 30 years if installed properly. However, some higher-end shingles made of materials like slate or metal can last up to 50 years or more. While these materials may come with a higher price tag, they can provide a better long-term value.
In conclusion, while it may be tempting to leave old shingles on to cut costs, it's important to consider the long-term benefits of removing them. By removing old shingles before installing new ones, you can improve the longevity and durability of your new roof while avoiding potential structural problems down the road. And when it comes to choosing the right type of shingle, property owners should consider both upfront costs and long-term goals for their property. A professional home inspection can help identify any issues with your roof and provide recommendations for the best course of action. Call us to schedule an inspection of your home or commercial building today!