Asked to look at a lightweight wood roof truss that contractor drilled a 1" diameter hole in the bottom chord near top and at mid span. Bottom chord is a 2x8. Are there any manufacture or code requirements such as in traditional wood beams? I plan on analyzing truss with loss of section, but would like to know if there are any standards or rules of thumb.
Improving the battery life of our devices remains one of the tech industryâ€™s biggest challenges, and the most inefficient draw on power comes from the display, more specifically, the backlight that illuminates most displays. Download Now