The use of photoluminescent material systems in buildings is gaining acceptance in North America as a valuable safety feature for users of exits and stairwells in the event of power failure and the loss of emergency lighting. This Update describes the characteristics and installation of photoluminescent markings. Full story
Fire suppression systems for the protection of buildings have evolved in response to new requirements, environmental pressures and advances in technology. This Update provides an overview of four recently developed systems, reviews research on the performance of each, and provides guidance on system selection, design and use. Full story
This Update reviews NRC-IRC research on the fire resistance of externally bonded, fibre-reinforced polymer (FRPs) systems used for repairing concrete building members. The research showed that FRP systems that include specially designed insulation can enable repaired or strengthened concrete members to exceed the 4-hour fire resistance requirements of building codes. Full story
This Update presents the results of research on smoke movement through HVAC systems and the effectiveness of duct smoke detectors. It provides guidance to practitioners and regulatory authorities in the context of North American code requirements for such detectors. Full story
This Update discusses the importance of various factors in achieving the required fire resistance and sound control for load-bearing steel-stud wall assemblies with gypsum board faces. Full story
This Update discusses the use of an engineered approach to the design of smoke management systems for atrium buildings, based on the principles of smoke management in atriums outlined in Construction Technology Update No. 47 . Full story
Fires in atrium buildings can pose a serious threat to occupants as a result of smoke migration. This Update, intended for building designers and property managers, outlines the basic principles of smoke management in atriums that must be understood in order to enhance occupant safety. Full story
This Update presents strategies designed to ensure that building occupants respond appropriately when the fire alarm sounds, with the goal of promoting safe and orderly evacuation or relocation. Full story
Why do building occupants so often ignore fire alarm signals? This Update presents some reasons, supported by IRC studies and documentation of real fires. Full story
The increased use of high-strength concrete in buildings and structures has led to concerns about its fire performance, especially the problem of spalling. This Update presents research results comparing the fire resistance of highstrength and normal-strength concrete columns and offers guidelines for improving the fire resistance of high-strength concrete structural members. Full story
