Ventilation is the cheapest thing that makes a roof last in Indianapolis metro, and exhaust without intake makes things worse.
At a glance
- Intake at the soffit and exhaust at the ridge have to be balanced.
- Ridge vent with blocked soffits pulls air out of the house instead.
- Insulation pushed into the eaves is the most common blocked intake.
- A hot attic in summer and a frosted attic in winter are the same fault.
Highly rated roofers across the county
Ranked by rating and review count. Call two or three before you decide.
Amos Exteriors
4.9 from 3,289 reviews
Indy Roof & Restoration
4.9 from 2,364 reviews
Bone Dry Roofing
4.9 from 976 reviews
Cochran Exteriors
4.7 from 1,249 reviews
Big Boy's Construction
4.9 from 891 reviews
Raptor Roofing
5.0 from 710 reviews
Indy Rooftops - Roofing Replacement Contractor
5.0 from 564 reviews
Trojan Roofing
4.9 from 637 reviews
Cox Roofing
4.8 from 525 reviews
Common questions
How much attic ventilation do I need
The usual rule is one square foot of net free vent area for every 150 square feet of attic floor, halved when a vapor barrier is in place and the intake and exhaust are balanced.
Are attic fans a good idea
Usually not here. A powered fan can depressurize the attic and pull conditioned air out of the house. Fixing intake and exhaust is the better spend.
Can ventilation be fixed without a new roof
Soffit intake can be opened up any time. Ridge exhaust is far cheaper to add while the roof is off, so plan it with a replacement.