General

General

base screed

A metal screed having expanded or short perforated flanges; acts as a dividing strip between plaster and cement; provides a […]

General

base sheet

Saturated and/or coated felt sheeting which is laid as the first ply in a built-up roofing membrane.

General

base metal

The metal to be welded or soldered (as distinguished from filler metal which is deposited during the joining process).

General

base coat

1. All plaster applied before the finish coat; may be a single coat or a scratch coat and a brown

General

base coat floating

The spreading, compacting, and smoothing of the base coat of plaster so that it is finished to a reasonably true

General

base course

1. A foundation or footing course, as the lowest course in a masonry wall. 2. A layer of selected material

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