Q: I own a 1970s-era ranch home (26 feet by 42 feet) with gable vents at the ends. I had a 24-by-26-foot addition put on it. The builder did a roof ridge venting system on the addition and insisted ...

Gable is the commonest style. The design involves two sides of a roof coming together at the peak to form a ridge. PHOTOs/Ismail Kezaala. The style one settles for relies on a variety of factors.

Dear Jerry: My roof was replaced and ridge vents replaced box vents. Are ridge vents as effective as box vents? When snow covers the roof, both ridge and box vents are covered. Doesn’t this eliminate ...