Dear Ken: I have turbine vents on the roof. Should I cover them in the winter? It may help you to know that I have those gable vents in the side walls, too. Paul
Answer: It’s a good idea to wrap all the turbines with a plastic garbage bag and secure them with a bungee cord. Also, cover the most north-facing gable vent with a fiberglass furnace filter to keep wind-driven snow out of the attic But leave the others alone; you must allow some attic ventilation year-round to avoid moisture buildup in the attic.
These two steps will allow you to capture and hold on to more of the wintertime passive solar heat buildup. Even with the best insulation, some of that heat will leak into the house, saving you expensive gas heat.
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