Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 268
z< Qu, o z ^ ^ ?= w en w 5^ > -2 P. . S d? A t 1 « n … w fe c« ROOF TRUSSES Pitch Normal Wind Pressure J 34 pounds per square foot. 30° 32 i 30 1 2G j^ 90 iC it U it ti *^ If the normal pressure on a roof making any other angle with the hori-zontal is desired, see Statics, p. 24. The determination of these vakies is based for the most part ondata…
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
