Glossary

Glossary

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Eave	The part of a roof which projects out from the side wall, or the lower edge of the part of a roof that overhangs a wall.
Edge Grain (Vertical)	Edge-grain lumber has been sawed parallel to the pith of the log and approximately at right angles to the growth rings; i.e., the rings form an angle of 45° or more with the surface of the piece.
Egress Code	National building code stipulating sizes of windows and/or doors necessary to exit a building or room directly to the outside.
Elevation	A side of a building.
Emissivity	The measure of a surface’s ability to emit long-wave infrared radiation.
End Lap	The amount or location of overlap at the end of a roll of roofing felts in the application.
EPDM	Ethylene Propylene Diene Monomer. A single ply membrane consisting of synthetic rubber; usually 45 or 60 mils. Application can be ballasted, fully adhered or mechanically attached.
Excavate	Dig the basement and or all areas that will need footings/foundations below ground.
Expansion Coefficient	The amount that a specific material will vary in any one dimension with a change of temperature.
Expansion Joint	A device used to permit a structure to expand or contract without breakage. In residential construction, a bituminous fiber strip used to separate blocks or units of concrete to prevent cracking due to expansion as a result of temperature changes. Also used on concrete slabs.
Extrusion	An item formed by forcing a base metal (frequently aluminum) or plastic, at a malleable temperature, through a die to achieve a desired shape.

N5821 County Road S | PO Box 902 | Plymouth, WI 53073 | (800) 707-0449