11.   A ridge vent works better if gable vents are closed up.

12.   A ridge vent may need defining.

13.   A ridge vent should go the entire length of the ridge.

14.   A. It certainly is, although by roof vents I hope you mean a ridge vent.

15.   A. While a ridge vent is designed to work in conjunction with eave or soffit vents, you may not need them because they can work by themselves.

16.   A. A ridge vent is almost always superior to a powered vent because it can move more air and costs nothing to operate.

17.   A. Put in a ridge vent, which may be enough to keep the attic the same temperature as outdoors.

18.   A. It is generally recommended that a ridge vent be installed with soffit vents in order to boost the ventilation.

19.   A. Not all shingles must be remvoed to put on a ridge vent.

20.   But even a short ridge should have a ridge vent, which will be more effective than the roof vents.