You should never wait more than a few days or a maximum of one week to address missing shingles on your roof, as waiting longer exponentially increases your risk of severe water damage. While the synthetic underlayment or felt paper beneath the missing shingles provides a temporary waterproof barrier, it is vulnerable and quickly degrades when exposed directly to ultraviolet sunlight and driving rain. If a major storm forecast is approaching, leaving even a single missing shingle unpatched can allow wind-driven water to breach the underlayment and saturate your attic insulation and drywall. Additionally, missing shingles disrupt the aerodynamic wind-resistance of your entire roof plane, meaning neighboring shingles are much more likely to lift and blow off during subsequent winds. Scheduling an immediate repair or applying a temporary patch safeguards your home from costly interior destruction.
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