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Attic Ventilation

Also called: roof ventilation, intake and exhaust

🏠 Roof & Attic — a term you may see in your inspection report.

Why does attic ventilation matter?

Attic ventilation moves hot, humid air out of the attic. In an East Texas summer a poorly ventilated attic can run well over 140°F, which cooks shingles from underneath, shortens roof life, drives up cooling costs, and — in cooler months — lets moisture condense on the underside of the roof decking. A working system needs both halves: intake low at the soffits and exhaust high at or near the ridge. Exhaust alone, with blocked intake, does very little.

What it does
Moves hot, humid air out of the attic
East Texas attic temps
Can exceed 140°F in summer
Requires both
Intake at the soffits, exhaust at or near the ridge
Most common failure
Intake blocked by insulation or paint

What it actually is

Air has to come in somewhere and leave somewhere else. Ventilation is a system, not a product, and installing more of one half doesn't compensate for the other half being blocked.

Why it matters in East Texas

This is one of the highest-value things I check here, because our summers are punishing and most homeowners have never been in their own attic in August. A cooked attic shortens the life of a roof you just paid for.

What I do when I find one

I look at intake and exhaust as a pair, check whether soffit vents are blocked by insulation or painted shut, and note the attic conditions I find — temperature, moisture, staining, insulation depth and coverage.

What it means for you

Improving ventilation is usually modest money and it protects a major asset. If you're replacing a roof, this is the moment to fix it.

More roof & attic terms: Kick-Out Flashing · Ridge Vent · Soffit & Fascia · Roof Decking Delamination · Vapor Barrier

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90-Day Inspection Warranty

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Questions About Something in Your Report?

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