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.
Accordingly, when you measure your windows, measure from frame to frame, then ADD an additional amount to allow the fabric to stack. We typically add 5 inches to each side of the frame for windows up to 50 inches wide, then add an another 2 inches for each additional 10 inches of window frame width. Here is a simple chart: