Ventilation Issues
Inadequate roof ventilation causes hidden damage: premature shingle failure, mold growth, ice dams, and high energy bills. Proper airflow is essential for roof longevity.
Signs of Poor Roof Ventilation
How Proper Ventilation Works
Intake (Soffit Vents)
Cool outside air enters through vents in the soffit (underside of roof overhang). This air flows up through the attic, pushing hot air out.
- • Continuous soffit vents
- • Individual round or rectangular vents
- • Perforated soffit panels
Exhaust (Ridge/Roof Vents)
Hot air rises and exits through vents at or near the roof peak. This creates natural convection that continuously moves air.
- • Ridge vents (along peak)
- • Box vents (static roof vents)
- • Power ventilators (fan-assisted)
Benefits of Proper Roof Ventilation
Extended Shingle Life
Reduces heat damage that ages shingles prematurely
Lower Energy Bills
AC works less when attic heat doesn't radiate down
No Ice Dams
Even roof temperature prevents melting/refreezing cycles
Mold Prevention
Moisture escapes instead of condensing on wood
Frequently Asked Questions
How does poor ventilation damage my roof?
In summer, trapped heat bakes shingles from below, accelerating aging. In winter, warm air hitting cold sheathing creates condensation that rots wood and grows mold. Proper ventilation equalizes temperatures and removes moisture.
What is the right amount of roof ventilation?
The general rule is 1 square foot of ventilation per 150 square feet of attic floor space, split between intake (soffits) and exhaust (ridge vents). We calculate your specific needs based on attic size, roof design, and local climate factors.
Can I add ventilation to my existing roof?
Yes. We can install ridge vents, add soffit vents, or integrate power ventilators. The best approach depends on your roof design and current ventilation. Sometimes improving insulation is also necessary for optimal results.
Is Your Roof Breathing Properly?
Free ventilation assessment with every roof inspection.
Call (843) 877-5539