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.
Require no door prep. Dummy handles are surface-mounted and may be located anywhere on the door you choose, but theyâre usually located to match the appearance of nearby operating locks. Standard Exterior Doors. The standard size for an exterior door is 80 inches (6 feet, 8 inches) by 36 inches (3 feet).Stock exterior doors are also commonly available in 30-inch and 32-inch widths. The standard door thickness is 1 Â¾ inches. Door Thickness: Most standard interior doors are 1 3/8 inches thick, and the door is slightly beveled to make the closure into the jamb. 2  Buy the correct door hardware for the application so the door handles for passage or privacy have the correct back set and bore.