House entryway section details in AutoCAD, dwg file.
<p>This Architectural Drawing is AutoCAD 2d drawing of House entryway section details in AutoCAD, dwg file. A vestibule is <strong>a small, enclosed entry chamber that traditionally has served as a buffer in winter between indoors and outdoors, to trap air and minimize heat loss</strong>. Vestibules today also help keep air-conditioned air inside and hot air outside in summer.</p>