A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Dado
A rectangular groove across the width of a board or plank. In interior decoration, a special type of wall treatment.
Damper
An air valve that regulates the flow of air inside the flue of a furnace or fireplace.
Dampproofing
A process used on concrete, masonry or stone surfaces to repel water, the main purpose of which is to prevent the coated surface from absorbing rain water while still permitting moisture vapor to escape from the structure. (Moisture vapor readily penetrates coatings of this type.) "Dampproofing" generally applies to surfaces above grade; "waterproofing" generally applies to surfaces below grade.
Darby
A flat tool used to smooth concrete flatwork immediately after screeding. See Bullfloating.
De-Humidistat
A control mechanism used to operate a mechanical ventilation system based upon the relative humidity in the home.
Dead Load
The constant, design-weight (of the roof) and any permanent fixtures attached above or below.
Decay
Disintegration of wood or other substance through the action of fungi.
Deck
An elevated platform. "Deck" is also commonly used to refer to the above-ground floors in multi-level parking garage.