Why Plano attics run hot — and what it's costing you
A poorly ventilated attic in a Plano summer can reach 150°F. That heat does three things, all of them expensive:
- It cooks your shingles from underneath. Asphalt shingles are rated on the assumption that the deck can breathe. Trapped heat ages them from the back side, and it is the single most common reason a 30-year shingle fails at eighteen.
- It voids warranties. Most manufacturers require a specific intake-to-exhaust ventilation ratio. If yours isn't met, the warranty language usually gives them an out.
- It drives your electric bill. Your A/C is fighting a 150-degree heat source sitting directly above your ceiling.
The fix is usually cheaper than people expect and it is almost always about intake, not exhaust. Homes get more roof vents added over the years while the soffit intake stays blocked with insulation or paint — which means the new vents just pull conditioned air out of the house. We check the balance, not just the vent count.

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