A product which must be sanded and have stain and/or a finish applied after installation.
Unglazed solar collector
A solar thermal collector that has an absorber that does not have a glazed covering. Solar swimming pool heater systems usually use unglazed collectors because they circulate relatively large volumes of water through the collector and capture nearly 80 percent of the solar energy available.
Unglazed tile
A hard, dense tile of uniform composition throughout, deriving color and texture from the materials of which the body is made.
Uni-flex
One piece stop and riser combination. One-piece supply.
Unibit
A conical drill bit designed to drill a larger hole the further it is pushed into the subject material.
Unified national coarse thread (unc)
A standard kind of coarse straight thread used on fittings, nuts, and bolts. Not for pipes.
Unified national fine thread (unf)
A standard kind of fine straight thread used on fittings, buts, and bolts. Not for pipes.
Uniform commercial code (ucc)
Group of laws, which standardize the state laws applicable to commercial transactions.
Uniform load
A load that is distributed evenly over a given area.
Uniform residential appraisal report (urar)
The standard form which is used for reporting the appraisal of a dwelling and provides numerous checklists, definitions and certifications.
