Soffits are already designed to facilitate circulation through the attic as even in temperate climates, a poorly vented attic space can reach excessive temperatures on hot days. This can lead to damage to shingles, rafters and existing venting.
Best Roofing Ventilation - Best and Worst Soffit Vents (Dented VS Vented)
How Many Soffit Vents Do You Need: the Definitive Guide
How Many Soffit Vents Do You Need: the Definitive Guide
A Crash Course in Roof Venting - Fine Homebuilding
Roof Ventilation 101: Essential Venting Methods For Your Home
BBSV Plastic Soffit Vents for Range Hoods & More
V Soffit - Steel Soffit for Residential and Commercial Uses
How to Choose Between a Roof, Soffit or Wall Vent - Primex HVAC Venting, PDF, Duct (Flow)
Air Vent 96-in x 2.75-in White Aluminum Soffit Vent in the Soffit Vents department at
How to Build a House: Install Aluminum or Vinyl Soffits
Why Proper Attic Ventilation Is Important for Your Home