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.
1. Carefully mark and remove the wall section that will form the door to the pantry, leaving the outer wall studs as a frame. 2. The wall that will accommodate the pantry door is small at only 30 inches in width, so a 20-inch door makes an ideal choice. Frame out the opening, check the levels, shim where necessary and secure the new door with screws.