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.
Your Door Size. Your Way. The 36-inch wide entry door is the standard door size of California home-building. The vast majority of homes have an entry door thatâs 36 inches wide. If you just want to replace your 36-inch door with a new, more contemporary looking 36-inch model, Todayâs Entry Doors gives you lots of choices, including a wide range of style, color, glass and hardware options.