- DEFINITION
- CONSIDERATIONS
- COMMERCIAL STATUS
- IMPLEMENTATION ISSUES
- GUIDELINES
CSI Numbers:
07800 Roof Accessories 07840 Gravity VentilatorsDEFINITION:
A ridge-and-soffit venting system is a continuous, weather-shielded opening at the peak of the roof in combination with continuous screened openings along the eaves of the house. This system provides air movement under the roof that washes the underside of the roof with air that is exhausted out the top of the roof through the ridge vent.CONSIDERATIONS:
A continuous ridge-and-soffit vent system is the most effective means to ventilate an attic. It is a passive system (no fans) and can outperform fans. The effect of pulling air from the eaves and out at the ridge is an example of the thermal chimney effect (discussed in the Passive Solar Design section).Commercial Status | Implementation Issues | ||||||
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T E C H N O L O G Y | S U P P L I E R S | C O S T | F I N A N C I N G | A C C E P T A N C E | R E G U L A T O R Y | ||
Ridge & Soffit Vent | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![]() | Satisfactory |
![]() | Satisfactory in most conditions |
![]() | Satisfactory in Limited Conditions |
![]() | Unsatisfactory or Difficult |