What Is A Vellum As Opposed To A Blueprint Of A Design?
Most people are familiar with blueprint paper, which is a standard type of light-sensitive photographic paper (called diazo paper) that architectural plans are commonly printed on. Vellum is a type of translucent paper that home plans are more recently being printed on.
A vellum’s advantage is that it allows the lines of the floor plan to be erasable with an electric eraser, so changes can easily be made to the plan. Another benefit is that extra blueprint copies can be made directly from it.