As mentioned in our last post, per NFPA 72 Chap. 18.4.6, the sound level of in-unit alarm notification in sleeping areas has to be either 15 dB over ambient, 5 dB over the highest measured sound level having a duration of at least 60 seconds or 75 dB at the pillow, whichever is greater. 75 [Read More]
What Are My Residential Smoke Detection Options? (Part 2)
In our last blog, we defined and pointed out some differences between single station and system smoke detection devices. Now let’s turn our attention to what’s involved with the installation of these devices. Labor is usually the biggest cost in installation, so how much labor does it take to install smoke alarms and smoke detectors? [Read More]
What Are My Residential Smoke Detection Options? (Part 1)
When an apartment building or condominium is built or renovated, an option overlooked by many designers of record is using a system detector instead of a single station smoke alarm in the dwelling units. As with many choices, cost is usually a primary concern. However, the overall cost of the choice is only one consideration [Read More]
Can I Save Money With Wireless Smoke Detectors?
One of the newer methods of installing fire alarm devices involve the use of wireless detectors and audio/visual devices. Before considering whether to utilize these devices, a designer of record should verify the local jurisdiction allows these devices to be used. For example, Section 907.6.1 of the 2020 Chicago Building Code allows these devices to [Read More]
New Chicago Fire Alarm Requirements, Part 2
In a previous post, we went over the changes in fire alarm requirements in Chicago educational occupancies. Today we’ll discuss the changes for Group B and M occupancies in Chicago. To start, the Chicago Building Code (CBC) business occupancy designation has changed from Class E to Group B and mercantile occupancies have changed from Class [Read More]
Are Fire Alarm Strobes Required in the City of Chicago?
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Update 8/1/20: With the adoption of the new Chicago Building Code effective August 1, 2020, as well as an update of the Illinois Accessibility Code (IAC) in October 2018, strobes are now required in fire alarm installations in Chicago. There are no longer Class I or Class II type fire alarm systems in Chicago. The [Read More]
When Do Locked Doors in High Rises Have to Unlock?
High rise suites can take up a large portion of a floor & many times take up the entire floor. These large suites are usually divided in sections that may have electronically secured doors that partition them. Examples would be data server rooms and file rooms, as well as stairwells and suite entrances from the [Read More]
What is the Difference between ADA & Section 504 Requirements?
Everyone knows about ADA requirements. They may not know what the requirements are, but they know there are requirements. However, most designers and installers are unfamiliar with Section 504 requirements. Section 504 refers to a section of the Rehabilitation Act of 1973. As the date suggests, it’s actually the precursor to the ADA. This section [Read More]
New Chicago Building Code Fire Alarm Equipment Requirements
In our recent blogs, we discussed some of the the new Chicago Building Code (CBC) requirements that will take effect on August 1, 2020. Let’s now take a look at the effect the new code will have on fire alarm equipment requirements in Chicago. We’ll begin today with E-1 Educational occupancies, which are primarily K-12 [Read More]
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