When it’s time to replace your roof, you’ll be faced with two primary options: a complete roof tear-off or a roof overlay (also known as a roof re-cover). Both methods have their merits, but understanding their differences and considering your specific roofing needs will help you make the best choice for your home.
A tear-off refers to the process of completely removing the existing roofing materials from the roof deck before installing a new roof. During a tear-off, all layers of the old roof, including shingles, underlayment, and the roof deck, are stripped away. This process provides a clean slate and allows for a thorough inspection of the roof deck to identify any hidden damage or structural issues. A tear-off is a more extensive and labor-intensive approach, but it offers the advantage of creating a strong foundation for the new roofing system and allows for improved energy efficiency and a longer-lasting roof.
A roof overlay, on the other hand, involves installing a new layer of roofing material directly over the existing roof without removing the old roofing. In this method, new shingles or other roofing materials are placed on top of the existing ones. Roof overlays are typically less expensive and faster to install compared to tear-offs since there’s no need to strip away the old roof. However, roof overlays have some limitations. They are only suitable when the existing roof is in relatively good condition, with minimal damage or structural issues. Additionally, re-covering might add excess weight to the roof, and it doesn’t allow for a comprehensive inspection of the roof deck, potentially hiding underlying problems.
Professional roofers recommend a complete roof tear-over a roof overlay for several important reasons.
During a tear-off, the old roofing materials are entirely removed, allowing for a thorough inspection of the roof deck. This process reveals any hidden problems like rot, water damage or structural issues that may have been concealed by the old roof. By addressing these issues, a tear-off ensures a solid foundation for the new roofing system and prevents potential problems from surfacing in the future.
A tear-off provides an opportunity to install a new, fresh roofing system from the ground up. This typically results in a longer-lasting roof compared to an overlay. With all new materials, including shingles, underlayment, and flashing, the roof is more resistant to wear and tear and can withstand the elements for an extended period.
During a complete roof tear-off, it’s possible to enhance the roof’s energy efficiency by adding modern insulation materials and improving ventilation. Proper insulation and ventilation can help regulate indoor temperatures, reducing the need for excessive heating and cooling and potentially leading to energy savings over time.
With a tear-off, there’s no reliance on the existing roof to support the new layer. This minimizes the risk of compromised underlying roof structures, which could lead to roof failure and costly repairs.
Tear-offs allow for a clean slate, enabling homeowners to choose from a wide variety of roofing materials and styles. This provides the opportunity to achieve the desired aesthetic appeal for the home.
Roof overlays add an additional layer of weight to the existing roof structure. In some cases, this can exceed the roof’s load-bearing capacity, potentially leading to structural problems. A tear-off eliminates this concern, ensuring the underlying structure appropriately supports the new roof.
Howard Roofing & Home Improvements is a reliable roofing company that delivers excellent roof installation services. We ensure compliance with all local building codes and manufacturer’s instructions. Call us at (636) 296-1057 or fill out our online form to schedule a consultation. We serve clients in St. Louis, MO, and nearby areas.