Livermore, CA, August 30, 2017 --(PR.com)-- Prevent Life Safety has reached a huge milestone in their fire barrier maintenance service of officially inspecting 500,000 fire dampers
. Over the last decade keeping facilities code-compliant with their fire barrier system has been their sole focus.
Design of the single blade slide-gate type fire damper
for L x L = [L.sup.2] size square cross-section ductwork is shown in the Fig.
While the company had told the NRC in November of 2008 that all the fire dampers
included in a certain procedure had passed inspection, in fact 12 of the dampers had not been inspected, including three that are critical to the facility's safety.
Chapter 7 of the IBC requires that fire dampers
be installed in fire walls, barriers, partitions, and horizontal assemblies.
LSS Life Safety Services specializes fire damper
inspections, fire door inspections, firestop survey and firestop installation services to commercial facilities.
You cannot run a duct or air transfer opening through a fire wall located on a property or lot line--not at all--not even with a fire damper
. If you run a duct or air transfer opening through a fire wall located within a building, use a three-hour fire damper
Sun screens protect north-facing windows and air is efficiently shared through the building from fire dampers
connected to a central corridor and vented out through dampers opposite clerestory windows at the top of the central spine.
Methods for fighting duct fires range from letting the fire bum itself out and watching to make sure that it doesn't spread to other areas of the plant to shutting fire dampers
and fighting the fire with hoses.
Checklists are included for ductwork and fire dampers
. To order, visit (www.smacna.org/bookstore).
Some provisions for new construction relate to: impact-resistant stair and elevator enclosures; smoke-stop elevator vestibules; the raising of air intake locations to prevent unwanted contaminants from entering ventilation systems; controlled inspections of sprayed-on fireproofing and fire dampers
; and exclusion of certain floor drains from normal fixture counts to encourage the use of such drains, and prevent water used in firefighting from draining into elevator shafts.