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.
Standard thickness is 1- 3/4â. 1- 3/8â thick doors are available through 36â widths and 84â heights. Doors less than 1- 3/4â thickness will not accommodate camed glass with safety glass reinforcement. 2â and 2- 1/4â thick doors are also available. The standard thickness for hand-wrought iron (ManorgateÂ®) doors is 2-1/4 for double glazed insulating and 1-3/4 for single glazed.