Nanotextured Surface Dramatically Improve Solar Cell Efficiency. The Engineer posted on January 22, 2015 | | 4074 views. Reducing the amount of sunlight that bounces off the surface of solar cells helps maximize the conversion of the sun's rays to electricity, so manufacturers use coatings to cut down on reflections.
The main entry door must conform to IRC specifications. Exterior doors often are the most visible parts of a house and like interior doors, are available in standard sizes. They range in width from 2 feet to more than 3 feet, and in height from 6 feet, 8 inches to more than 8 feet. Standard thickness is 1 3/4 inches.
Determine the size of a single door or pair of double doors that suits your purposes. Standard door widths range from 24 inches to 32 inches. Double the width of the desired door, or pair of doors, to determine the wall space that's needed to install the pocket door frame. For example, 48 inches is needed to install the frame for a 24-inch door. For double doors, double the width of one door and multiply the result by two.