Abstract
This paper describes the optimum design and life cycle cost (LCC) assessment of timber roofs for sustainable construction. For this purpose, collar beam roof construction in a typical single-family house was analyzed. Special focus was placed on the impact of the patch cross-section position for different rafter spacing. The calculations were performed for four roof angles (15°, 30°, 45°, 60°). The main goal was to find the optimum LCC for each angle. It was found that smaller rafter spacing generates a higher assembly cost and takes more time to construct. On the other hand, the wood cost for these elements is lower. The implications of LCC were evaluated to find out which patch and rafter cross-section, as well as rafter spacing for each roof angle is the most economical solution.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
