In cool or cold weather conditions, scientists confirmed that direct-nailed asphalt shingle roofs had significantly larger heat loss than attics with metal shakes and above-sheathing ventilation. The ...

Not all energy saving products and techniques are equal. In fact, not all of them are even widely known. Recently, a study funded by the U.S. Department of Energy and conducted by the Oak Ridge ...

Q. This week: I had my roof sheathing replaced a year ago; it was plywood and had delaminated. The contractor thought it might have been due to excess moisture in the attic. This winter, I went up ...

Join our expert panelists as they explore cutting-edge advancements in metal construction and its role in shaping the future of building design. Discover how advanced technologies, such as ...

Other roof water infiltration can usually be traced to poor flashing around chimneys, plumbing vents, roof vents, etc. may penetrate the shingled surface. Missing or worn out roofing material is ...

First, let’s look at the kinds of roof vents. Gable/louvers vents. Louvers are covered openings that allow air to escape the attic. ... Fans do not create airflow over the roof sheathing.