Why You Shouldn’t Roof over Existing Shingles: Risks, Code Issues, and Better Options
Introduction Roofing over existing shingles is usually not recommended due to hidden damage, poor performance, and potential code issues. The guide walks through how to evaluate roof conditions, navigate common code concerns, and compare safer options so you can plan a higher-quality, longer-lasting roof. Key takeaways Layering new shingles over old creates hidden moisture and […]
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