The massive amounts of cold, dry outdoor air would thus mix ... vents that act as the cap shingles at the top of the roof. Other vent products are coils of plastic fabric resembling coarse steel ...

You should cut off a minimum of 6 inches. And if your attic is cold, the exposed vent pipe should be insulated. Vent pipes seldom freeze that solidly; the frost is more crystallized and can be ...

Roof ventilation is based on the simple fact that ... gets warm enough to melt snow on the roof while the eaves remain cold. Then, when the meltwater reaches the eaves, it freezes and forms ...

. Q. I hate to still keep you on the "cold roof" subject, but I want to make a cold roof on my 6,000 square foot Victorian 4-unit with 2 furnaces that are located in the attic. What can I do? K.C ...

When it’s very cold and snow is on a roof ... When outdoor air is less humid than attic air, ventilation can also help reduce moisture buildup in the attic. There are two ways to vent a roof ...

First, bathroom fans should not be vented through roofs in cold climates ... but you will have to have solved the ventilation problem first. If the mold is massive, you should call on a firm ...

It was cold in the winter up there and hot in the summer, but no mold. In your opinion, what’s the best attic ventilation? What would you do if you were building a new home? — Melissa T., ...

Q: Even though we have done a good deal of work to increase energy efficiency in our 1960 split-level home in San Carlos, we are having a difficult time keeping the warm air inside the house ...

Why is attic ventilation such a big deal ... to the lower edge of the roof may freeze since the overhang extends over cold air and does not “benefit” from heat lost into the attic from ...

and much of it is still on rooftops because of the persistent cold. That’s not a problem on homes with proper insulation and attic ventilation because the snow can melt consistently and drain ...