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| Steel Metal and Waterproofing. |
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| Providing continuous service to the NY Metro area, |
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| for over 54 years! |
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| 54 YEAR, FAMILY OWNED, THIRD GENERATION |
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| Roofing Glossary |
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Eaves – The horizontal, lower edge of a sloped roof
Eaves flashing – Additional layer of roofing material applied at the eaves to help prevent damage from water back-up.
Edging strips – Boards nailed along eaves and rakes after cutting back existing wood shingles to provide secure edges for reroofing with asphalt shingles.
Ell – An extension of a building at right angles to its length.
Exposed nail method – Application of roll roofing in which all nails are driven into the cemented, overlapping course of roofing. Nails are exposed to the weather.
Exposure I grade plywood – Type of plywood approved by the American Plywood Association for exterior use.
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.
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 CLEARANCE – Nominal spacing between the edge of the glass product and the bottom of the glazing pocket (channel).
EDGE METAL – A term relating to brake or extruded metal around the perimeter of a roof.
EER – Energy Efficiency Ratio; is figured by dividing BTU hours by watts.
EFFLORESCENCE – The process by which water leeches soluble salts out of concrete or mortar and deposits them on the surface. Also used as the name for these deposits.
EIFS – Exterior Insulating Finish System; exterior wall cladding system consisting primarily of polystyrene foam board with a textured acrylic finish that resembles plaster or stucco.
ELASTOMER – An elastic rubber-like substance, such as natural or synthetic rubber.
ELASTOMERIC – Of or pertaining to any of the numerous flexible membranes that contain rubber or plastic.
ELECTROLYTIC COUPLING – A fitting required to join copper to galvanized pipe and gasketed to prevent galvanic action. Connecting pipes of different materials may result in electrolysis.
ELEVATION – A side of a building.
EMISSIVITY – the measure of a surface’s ability to emit long-wave infrared radiation.
EMT – Electrical Metallic Tubing- This electrical pipe, also called thin-wall conduit, may be used for both concealed and exposed areas. It is the most common type of raceway used in single family and low rise residential and commercial buildings.
EMULSION – In roofing, a coating consisting of asphalt and fillers suspended in water.
END DAMS – Internal flashing (dam) that prevents water from moving laterally within a curtain wall or window wall system.
END LAP – The amount or location of overlap at the end of a roll of roofing felts in the application.
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.
EXTERIOR GLAZED – Glazing infills set from the exterior of the building.
EXTERIOR STOP – The molding or bead that holds the lite or panel in place when it is on the exterior side of the lite or panel.
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.
EYEBROW – A flat, normally concrete, projection which protrudes horizontally from a building wall; Eyebrows are generally located above windows.
EPDM – Ethylene Propylene Diene Monomer. A single ply membrane consistsing of synthetic rubber; usually 45 or 60 mils. Application can be ballasted, fully adhered or mechanically attached.
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 METAL – A term relating to brake or extruded metal around the perimeter of a roof.
EFFLORESCENCE – The process by which water leeches soluble salts out of concrete or mortar and deposits them on the surface. Also used as the name for these deposits.
ELASTOMERIC – A general term, any of the numerous flexible roof membranes that contain rubber or plastic.
EMULSION – In roofing, a coating consisting of asphalt and fillers suspended in water.
END LAP – The amount or location of overlap at the end of a roll of roofing felts in the application.
E.V.T. EQUI-VISCOUS TEMPERATURE – The critical temperature at which asphalt reaches the viscosity most favorable to good adhesion when applied in a BUR.
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 make up the motion of expansion and contraction. On large roofs this provision for the movement of the materials forming the walls, roof deck and roof covering is usually made by deliberately separating the building into sections, and covering separation between adjacent sections with the expansion joint to allow movement but keep out the weather. Expansion joints, unlike control joints, penetrate through the roof deck.
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.
EYEBROW – A flat, normally concrete, projection which protrudes horizontally from a building wall; Eyebrows are generally located above windows. |
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