Ventilation is the cheapest thing that makes a roof last in Minneapolis 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.
MNRC
4.9 from 877 reviews
Sela Roofing & Remodeling
4.9 from 701 reviews
Advantage Construction, Inc.
4.8 from 747 reviews
Twin Cities Contracting Services Inc.
5.0 from 508 reviews
Stronghouse
4.7 from 703 reviews
Craftsmen Home Improvements, Inc.
5.0 from 464 reviews
Ashton McGee Restoration Group
4.9 from 518 reviews
NMC Exteriors / Apple Roofing
4.8 from 584 reviews
Keystone Builders & Exteriors
5.0 from 409 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.