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 ...

Insulated metal roof panel offers the appearance of standing seam ... Patent-pending clips create an energy-saving above sheathing ventilation (ASV) airspace between the existing roof and new 138T ...

Since you’re working with metal and working high above the ground ... it’s a good time to take a look at the roof frame, sheathing, insulation and ventilation. Before installing metal roofing ...

Unified Steel-Stone coated roofing with Above Sheathing Ventilation technology and industry-leading wildfire defense; DaVinci Roofscapes that are lightweight with fire-resistant underlayment.

via email Dark areas on the underside of roof sheathing ... to roof vents. This too, would account for the stains in the areas that you mention. If the stains are directly above a bedroom where ...

Without adequate ventilation, the attic humidity levels can rise, causing sheathing to expand and buckle. Having a properly trained roofing professional check and correct any ventilation issues ...

Louvers are covered openings that allow air to escape the attic. They are located on the gable (non load-bearing) ends of the house and allow limited airflow. This system relies on wind direction ...