Open windows just a little on the windward side of the house or on the lower floor of a two-story home. Open the windows much wider on the other side or on the second floor. This creates a higher velocity for the incoming air for a stronger breeze. Building a solar chimney on the sunny side of your house will create an upward draft and draw air from throughout your home.
The following companies offer air ventilation products: Holmes Products, (800) 284-3267, www.holmesproducts.com; Hunter, (888) 830-1326, www.hunterfan.com; Kaz, (800) 332-1110, www.kaz.com; Vornado, (800) 234-0604, www.vornado.com; and Windchaser Products, (800) 405-2943, www.windchaserproducts.com. Dear Jim:
I just moved into a house and it has some insulation in the attic, but it is under a plywood floor. I want to add a lot more insulation over it. Will the plywood floor under the new insulation cause a problem? Bob J.
The plywood itself is not a problem, but if it is installed from wall to wall, it can act as a vapor barrier. If you are installing much insulation over it, it should not create a problem from a vapor standpoint.
It would not hurt to use a hole saw and cut many one-inch holes through the plywood. This provides air flow through it for any moisture to escape. The moisture comes from the living area below.
Send inquiries to James Dulley, Bend Weekly, 6906 Royalgreen Dr., Cincinnati, OH 45244 or visit www.dulley.com.