1.   Venting the attic, and allowing the roof to breathe, often helps prevent asphalt roof shingles from curling.

2.   Besides, a duct into a gable vent will partially block the vent itself, reducing its ability to vent the attic.

3.   If you vent the attic, the insulation would be doing even less good, although I repeat that in summer it will work to keep the attic cooler.

4.   Install a ridge vent, plus soffit vents, the state-of-the-art way to vent an attic.

5.   It fits on the roof and goes on when needed to help vent the attic.

6.   Of course, the roof boards must be cut on each side of the ridge board so the vent will actually vent the attic.

7.   Someone suggested venting the attic more, but we have new vents and the attic is dry.

8.   The best way to vent the attic is with a ridge vent going along the entire length of the roof ridge, and with soffit vents.

9.   The little vents at the ends of the attic at the top of the gable are sometimes inadequate to vent an attic.