Fire Rated Doors With Wire Glass
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Fire rated doors with wire glass. Wirelite is a 17 64 6 8 mm thick fire rated glazing material composed of wired glass. You are receiving the inaugural issue of code considerations quarterly safti first s quarterly publication that helps architects and specifiers select the correct fire rated glazing product based on the most current code and testing requirements. Labeled fire doors control the spread of fire and smoke for up to 3 hours. It is listed for use in openings that do not require an impact safety rating.
Inches with no dimension exceed ing 10 inches. Metal fire doors are an economical alternative to wood fire doors when more than a 20 minute rating is required. A more stringent category ii impact test that stipulated 400 foot pounds of impact also was established for glazing areas that exceeded that size such as patio doors. Protect3 safety glass is a 6mm thick glazing material consisting of fire rated wire glass with a surface applied fire rated and impact safety rated film.
Wirelite nt is a 17 64 6 8 mm thick glazing material composed of wired glass and a fire rated surface applied film. 3 hour doors are not permitted to have fire protection rated glass. Safety wired fire glass doors. That exemption no longer applies.
Wirelite nt is listed for use in doors sidelites transoms and borrowed lites. Been tested in a fire door assembly it will carry a dual marking of w and d h t this product can be used in large vision panel sizes in 60 and 90 minute doors where a fire protection rated product such as safety wired glass or safety ceramic and marked only dh would be limited to a 100 square inches. Rated glass such as safety wired glass and safety glass ceramic used in 60 and 90 minute doors to 100 sq. The wire glass has a special film added to it which holds the glass in place should it break.
If the door serves as a horizontal exit door in a fire wall it is further restricted to 100 sq. The codes exempted traditional wired glass where fire rated glazing was needed. Fire rated steel doors play a vital role in keeping people safe and minimizing property damage during a fire. Safety wire fire glass has been developed to allow wire glass to be used in areas where safety glass is required.
Under the 2012 ibc unsafe wired glass is not allowed in any hazardous location. 20 45 minute. Since 2003 the use of traditional wired glass in doors sidelites or locations where impact is a concern has been narrowed. As the only fire rated glazing product available at the time traditional wired glass was granted a temporary exemption from meeting the cpsc standard.