Can I add ventilation later?
Yes, but it is cheaper to do it during a replacement when the roof is already off.
Roof Ventilation and Why It Matters
Bad ventilation shortens shingle life, wrecks energy bills, and can void your shingle warranty. Here is the simplest way to think about it.
What ventilation does
Lets hot, moist attic air escape. Keeps the roof deck cooler. Prevents condensation in winter. Protects your shingle warranty.
Common mistakes
Mixed systems (ridge + box vents together), blocked soffits from insulation, no baffles, and gable vents fighting ridge vents. We get the system right.
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Yes, but it is cheaper to do it during a replacement when the roof is already off.
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