BEDES Dictionary

Version 2.6

You can explore the BEDES dictionary in several ways: use the search box to search for a particular term; filter the list of terms by category using the checkboxes below; click on each term for more details. You can also download all the terms and list options in CSV or XML format using the buttons below.

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Termsort ascending Term Definition Lists Unit of Measure
Percent Of Fenestration Area Shaded

The percent of the fenestration area that is shaded by exterior objects such as trees or other premises'.

Percent Glazing

The percentage of an opaque surface or door that is glazed

Opaque Surface Component

Element or characteristic of an opaque surface

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Opaque Surface

Opaque Surface type

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Number Of Fenestration Units

Number of windows, skylights, glass doors, etc associated with a surface, a zone, a premises, etc.

Moveable Insulation

Indication of whether or not a fenestration product has moveable insulation. This type of insulation can be applied when needed, such as on a hot summer day or a cold winter night, and removed when it is not needed.

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Material Qualifier

A description of how the material is applied.

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Material used in the construction of an opaque surface.

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Horizontal Surroundings

Attachments to the outermost horizontal surfaces of the premises.

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Glazing Diffusing Description

If the Fenestration Glass Type is diffusing (the material is not clear and causes light coming through it to be scattered), type of diffusing surface

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Framing Factor

Fraction (0-1) of the surface that is composed of structural framing material.

Foundation Perimeter Insulation

Is the foundation perimeter insulated.

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Foundation Height

Height of the premises foundation. [NOTE: The Location term can be used to further refine this definition, such as Foundation Height  Above Grade or Foundation Height Below Grade.]

Foundation Ground Coupling

The type of coupling between foundation and ground.  Use Location and Conditioning Status terms to further qualify coupling.

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Foundation Component

Element or characteristic of a foundation

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Footprint Shape

General shape of the premises outlined by the exterior walls. Illustrations will be added when the web version is developed.

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Floor Level

Integer value of a floor level beginning in the US at 1 for ground level. Can be negative for below grade levels.


The final material applied to a surface, either interior or exterior. Some structural components don't have an exterior finish, such as unfinished poured concrete

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Fenestration Operation

Characterization of whether a fenestration product can be opened.

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Fenestration Number of Glass Layers

The number of layers in a fenestration insulated glass unit (IGU).

Fenestration Layout

The pattern of distribution of the fenestration system on the wall.

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Fenestration Glazing Type

Type of glazing material in the fenestration product.

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Fenestration Glass Layer Description

A description of the number of layers of glass in a fenestration glazing system.

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Fenestration Gas Fill

For a sealed glazing system (commonly called an Insulated Glass Unit (IGU), the gas that is found between the panes of glass.

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Fenestration Frame Material

The construction and material used in the frame of the fenestration product. Some frames are made of combinations of materials. This characterization also include whether an aluminum frame has a thermal break as part of the construction

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