Deciding whether to tear off your old roof or install a new roof over it is an important decision for homeowners. At SkyRight, Sandpoint, ID’s top roofing experts, we guide you in making the best choice for a durable and reliable roof.
Understanding the Building Code
Building codes require that if your roof already has more than one layer of shingles, you must tear off the existing roof. This ensures structural safety and prevents excessive weight on the roof, especially in snowy regions.
Benefits of a Full Roof Tear-Off
1. Deck Inspection
Removing old materials allows a thorough inspection of the wood decking underneath. This ensures the deck is in good condition and capable of supporting a new roof.
2. Replacing Flashings
Tear-offs enable the replacement of flashings around chimneys, skylights, and walls—common areas for leaks. Reusing old flashings can perpetuate hidden leaks and lead to costly repairs.
3. Identifying Hidden Leaks
Tear-offs reveal undetected leaks and water-damaged plywood. Addressing these issues during installation prevents future problems like spongy decking and blow-offs.
When a Roof-Over Might Work
Roof-overs, also known as lay-overs, are cost-effective in specific scenarios:
- Simple Roof Design: If your roof lacks chimneys, skylights, or valleys.
- No Previous Issues: Homes without leaks or shingle blow-offs may benefit from a roof-over.
However, roof-overs are not recommended for complex or problematic roofs, as they increase the risk of future failures.
Unique Insight: Did You Know?
Adding a new layer of shingles could add approximately 9,000 pounds of weight to your roof.
FAQs
1. Is a roof-over less expensive than a tear-off?
Yes, but the long-term risks, such as hidden leaks and reduced lifespan, often outweigh the initial savings.
2. How long do roof-overs typically last?
Roof-overs have shorter warranties, usually 2–5 years, compared to a new roof installed after a tear-off.
3. Can roof-overs void manufacturer warranties?
Yes, many warranties are invalid unless the roof is installed on a properly inspected deck.
SkyRight’s Commitment to Quality Roofing
At SkyRight, we prioritize tear-offs for comprehensive inspections and long-lasting roofing solutions. Our team, Bonner County’s top-rated roofing professionals, ensures every roof installation meets the highest standards.If you want to read a blog about how to evaluate and compare roofing bids effectively, click here.