Roof Ventilation - January 23rd 2015
Q: We have noticed many houses with what I think are called turbine vents. We think we need more ventilation in our attic. Is this the way to go?
A: Roof cavity ventilation is calculated at one square foot for every 200 square feet of living space. This can be achieved by soffit, gable, ridge or dome-type ventilators.
Turbines are wind-activated dome ventilators that move tremendous volumes of air up through soffits and gable vents. (I would prefer to use ridge venting or soffit vents.)
If you are installing new vents, it is important to seal around all ceiling fixtures and attic accesses (draft proofing); otherwise you will draw heat out of your house, costing energy dollars.
Check my website - AskShell.com – for more articles on draft proofing.