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properties of roofs

Lecture notes for Antalya Bilim University, Department of Architecture, ARC2406 Building Science 2 Course 0:00:00 introduction 0:00:48 building envelope and functions of its parts 0:01:02 definition of built environment 0:01:39 environments of the building 0:03:45 interaction between environments through building envelope 0:08:21 parts of the building envelope 0:09:03 definition of roof 0:11:21 functions of roofs 0:12:42 structural needs 0:14:43 loads and structure of roofs 0:20:38 insulation against precipitation, wind, sun and heat, noise, fire and vegetative pests 0:24:24 aesthetical properties 0:24:58 classification of roofs based on their geometrical form 0:25:18 lines and planar surfaces 0:26:53 flat roofs 0:28:07 shed roofs 0:28:52 gable roofs 0:30:09 hip roofs 0:32:35 gambrel roofs 0:33:40 sawtooth roofs 0:35:26 pyramidal roofs 0:35:45 folded plates 0:36:25 curves: circular arc, elliptical arc, hyperbola, parabola, circle, ellipse, 0:40:24 planar surfaces with curves 0:41:22 curved surfaces: single curvature, double curvature, amorphous 0:42:34 cyllindirical surfaces 0:44:05 parabolic surfaces 0:44:55 elliptic surfaces 0:45:34 conic surfaces 0:46:52 spherical surfaces 0:47:47 elliptical spheres 0:48:01 elliptical paraboloid 0:49:15 hyperbolic paraboloid 0:50:28 conoid 0:51:50 top view and elevation drawings of hip roofs 0:51:59 square base 0:55:40 drawing the slope with a certain percentage 0:57:42 rectangular base 1:01:48 L shaped base