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MIDWEST THERMAL BREAK WINDOWS

MIDWEST THERMAL BREAK PATIO DOORS

PROVIA ENTRY DOORS

LINCOLN WOOD WINDOW AND DOORS

SIMONTON VINYL WINDOWS AND DOORS

MARQUEE VINYL WINDOWS AND DOORS

SUN-TEK SKYLIGHTS

WHAT IT ALL MEANS

Glossary of terms courtesy of Simonton Windows: T - Z

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• Tempered Glass - Glass with a surface compression of not less than 10,000 psi, or an edge compression of not less than 9,700 psi. When broken, the glass breaks into pebbles instead of shards.

• Terrained Super Spacer® - A solid silicone foam spacer covered with Mylar, with a corrugated, terrained surface appearance. It is sealed to the edge of the glass and then sealed with butyl for greater energy efficiency.

• Tilt Latch - Mechanism that unlocks the sash and allows it to tilt in from the main frame.

• Tilt-in/lift-out sash - A sash that can be tilted to the interior and removed for cleaning and is manufactured by welding.

• Total Unit U- and R-values - The U- and R-values of the window calculated from the average of the center of glass, edge of glass and frame U- and R-values. It is the reciprocal of the R-value.
• Tri-durometer - An elastomeric material with three different degrees of hardness.

• U-value - Amount of heat transferred through a material. The lower the U-value, the slower the rate of heat flow and the better the insulating quality.

• UV Block - The percent of ultraviolet rays blocked from being transmitted through the glass. The higher the number the lower the percentage of ultraviolet rays transmitted through the window.

• Vent-lok - Latch mechanism on the interior face of the sash which retains the window in a partially open position for ventilation.

• Visible Light Transmittance - The percentage of light that is transmitted through glass in the visible light spectrum (380 to 720 nanometers). The higher the number the higher the percentage of visible light transmitted through the window.

• Weatherstripping - Material used to form a weather-resistant seal around operable sash.

• Weep flaps - A weep hole that is covered with vinyl flap that allows water to escape, while keeping insects out.

• Weep Holes - Small openings designed to allow water to escape that might otherwise accumulate in a window's sill.

• Weep Slots - Slots or holes in the sill (bottom) member of the sash frame that provides an outdoor release of infiltrated rainwater.

• Wet Glazing - A silicone-based substance used to secure and seal the glass to the sash.

• Wood blocks - Pieces of plywood that come in different thickness, depending on the depth of the hook of the frame. They are used to make the window flush with the opening it is filling. They are also used to assist in pre-mulling windows together and give the screw more to bite into when joining the windows.

• Wood jamb strips - Strips of wood that run along the jamb used to shim up the window. - An inorganic transparent material composed of sand (silica), soda (sodium bicarbonate), and lime (calcium carbonate) with small quantities of alumina, boric or magnesia oxides. Available Styles: Clear, Bronze, Grey and Tinted.