Blast Resistant Doors, What are blast resistant doors
Blast resistant doors speaks to what are blast resistant doors, why use blast resistant doors and why use blast resistant doors.
The fact that in buildings subject to special security requirements, windows, curtain walls and other glazing systems can be designed for resistance to the force of explosive blasts.
At this time standards for blast resistant glazing systems are published by several US Federal agencies including the Department of Defense and the General Services Administration, as well AAMA one of the publishers of the Standard/Specification for Windows, Doors and Unit Skylights.
Design for blast resistance involves defining the size of the blast and its distance from the glazing system, as well as the glazing system’s response to the blast. Of particular concern is the extent to which glass remains intact in the systems or is shattered and dispersed as hazardous fragments. Like impact resistant glazing, blast resistant glazing typically relis on laminated glass and reinforced framing and attachment systems.
A typical NFRC certification label that is affixed to a window or door unit will enable buyers to compare energy efficiencies of the unit. On the certificate will be given, the type of unit, the U factor, the Solar heat gain coefficient, the visible transmittance and Air Leakage (US./I-P).
Blast resistant steel doors and frames will combine the factors of blast and air pressure resistance and still function much the same as the standard hollow metal products that are found on today’s market. The entire manufacturer’s range of blast resistant products are readily available delivered complete with installed builders hardware that provides for an easy to operate door system.
Products are available in:
Low Range units
15 PSF
to
2 PSI
Mid Range units
3 PSI
to
8 PSI
High Range units
9 PSI
to
50 PSI
Products available have full
engineering capability to design and manufacture blast products to meet the
safety requirements of the end user.
Testing of units will be done by independent laboratories and complies with the most up to date test standards available.
Fire labelled products will have been tested in accordance with NFPA-80 and are certified by Underwriters Laboratories and Warnock Hersey International.
Blast doors are usually available with glazing that is factory pre-installed.
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