Should You Remove Your Existing Roof or Opt for an Overlay?

Deciding Between a Tear-off and a Roof-Over

Legal and Structural Considerations

Before considering a new roof installation, it's crucial to understand the legal implications and structural requirements. Building codes generally prohibit installing more than one layer of roofing material due to the potential weight overload, which can be significant, especially when compounded by snow. This regulation aims to prevent structural failures, ensuring that any additional roofing does not compromise the building’s integrity.

Why Tearing Off the Old Roof is Often Necessary

Comprehensive Deck Inspection

Removing the existing roof allows for a thorough inspection of the underlying wood decking. This step is vital to determine if the deck can support a new roof for its expected lifespan. Overlaying new shingles over old ones could obscure deck damages, leading to severe consequences like deck failure before the end of the new roof's service life.

Ensuring Effective Flashing Replacement

Flashings are critical to preventing leaks where the roof meets walls, chimneys, and skylights. Old flashings may already be compromised and, if not replaced, could continue to allow water ingress. A complete tear-off provides an opportunity to install new flashings, significantly reducing the risk of future leaks.

Identifying and Addressing Hidden Leaks

Old roofs can have leaks that are undetected until the roof is removed. These hidden issues, if not addressed, can cause continuous damage under a new layer of shingles, compromising the roof’s integrity and leading to additional repair costs.

When Roofing Over Makes Sense

Roofing over the existing material might be considered under specific circumstances, primarily for financial reasons or when the structural conditions explicitly permit. This option is generally suitable for simple roof structures without complexities like valleys, chimneys, or skylights, and where no previous issues such as shingle blow-offs have occurred. However, the warranties for such installations are often limited, reflecting the increased risk of future complications.

The Advantages of a Complete Roof Replacement

Opting for a full roof replacement—including tear-off, deck inspection, and installation of new underlayments—provides the best long-term protection. This approach allows for addressing any underlying issues directly, ensuring a longer-lasting roof with fewer unexpected problems. Moreover, a complete replacement often comes with extensive warranties, offering peace of mind regarding future roofing concerns.

Why Choose Summit Exteriors for Your Roofing Needs?

Located in Coeur d'Alene, ID, Summit Exteriors has established itself as a leader in the roofing industry since its inception in December 2021. As an Owens Corning Preferred Contractor and the highest-rated roofing company in Bonner County for 2023, we are dedicated to delivering superior craftsmanship and service. Our extensive experience in roofing and gutter solutions underpins our commitment to excellence, ensuring that every project meets our high standards of quality and integrity.

Conclusion

For most homeowners, the decision to remove the old roof or opt for an overlay should consider both the immediate financial implications and the long-term health of their home. While a roof-over might offer a cost-effective short-term solution, the benefits of a full tear-off and replacement are far more significant, providing lasting security and durability. When you’re ready to discuss your roofing options, consider consulting with experts who prioritize both safety and quality in every project. Summit Exteriors is here to assist you with knowledgeable advice and exceptional service tailored to your specific needs.