Hello forum members! I recently started planning a roof replacement and realized something embarrassing — I don’t actually know what’s under my shingles. Contractors mention terms like underlayment, decking, flashing, and ventilation, but most explanations are very brief and confusing. As a homeowner, I want to understand what I’m paying for and how each part affects durability, moisture control, and energy efficiency. I don’t want to blindly approve a project without knowing whether corners are being cut. Is there a clear explanation of roofing layers that’s understandable for non-professionals?
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