Click HERE to register for State Exam. We have also included additional information for those taking the Commercial and Industrial Roofing Exam, which is can be taken only by those who have already passed the Residential Exam.
Most windows for residential properties made of 1/8â (3 mm) or 3/16â (5 mm) glass. But usually insulated panels of double glass with argon gas or vacuum in between typically used. In many cases the total thickness of such unit with a frame excluded will range from 3/4â (19 mm) to 1 1/8â (mm). If planning to design a house or home addition it is a good idea to check windows dimensions chart offered by a particular manufacturer. But still, windows sizes shouldnât be an obstacle for any creativity.
Recommended rough opening is between 3/4. (19mm) - 1 (25mm) larger than the window. width and height. â¢ Ensure that the rough opening is plumb, level. and square, and the walls in the opening are not. twisted. a) 1 1/2 (38 mm) solid blocking is required at. the sill and sides of the opening. b) Ensure proper header is in place before.