May 15, 2020

What you should know about retrofitting signs

Retrofitting signs – What you should know Frequently Asked Questions Does retrofitting a sign or luminaire ‘void’ the UL Listing? Retrofitting an installed sign or luminaire does not impact the original Listing. The Listing Mark is applied by the OEM as the manufacturers’ attestation that the product met the appropriate UL Standard when it was… read more

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May 14, 2020

What You Should Know About UL Certified Luminaire Retrofit Kits

UL Certified Retrofit Kits for Luminaires-Frequently Asked Questions Does retrofitting a luminaire ‘void’ its UL Listing? Retrofitting an installed luminaire does not impact the original Listing. The UL Listing Mark is applied by the luminaire manufacturer (OEM) at the factory. It is the manufacturer’s attestation that the product met the appropriate UL Standard when it… read more

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April 29, 2020

Plywood Panels in UL Fire Resistant Wall Assemblies

Q. Can plywood panels be added to a UL fire-resistance rated wall assembly to increase structural stability? A. Guide Information for the Fire-resistance Ratings (BXUV) product category describes, among other details, acceptable variations to individual fire-resistance rated assemblies. Section II, item 13 of this guide includes a description of wood structural panels and the requirements… read more

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August 11, 2019

UL 2043 – IT’S NOT JUST FOR ELECTRICAL PRODUCTS ANYMORE!

The requirements in the 2015 International Mechanical Code (IMC) broaden the application of the UL 2043 Standard for Fire Test for Heat and Visible Smoke Release for Discrete Products Installed in Air-Handling Spaces. Compliance with UL 2043 was already a requirement for discrete electrical products in plenums, and the 2015 IMC requires discrete plumbing and… read more

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Certifying Roof Deck Constructions for Wind Resistance

An uplifting experience Building codes often require that roof deck constructions and coverings be designed to resist design wind load pressures in accordance with structural requirements specified in the code. They also require testing of various roof constructions to specific standards. To more effectively enforce these code requirements, it is important to understand two things:… read more

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August 10, 2019

Seeking Shelter from Tornadoes and Hurricanes

Testing and certification for storm shelters and safe rooms to ICC 500 Two of the most destructive events that Mother Nature delivers, tornadoes and hurricanes, pose a significant threat to life safety. Hurricanes generate wind speeds from 74 mph to over 150 mph, while tornadoes generate wind speeds from 65 mph to over 250 mph.… read more

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Using Relocatable Power Taps in Health Care Facilities

Listed relocatable power taps (outlet strips) are frequently used in both home and business locations, but the appropriate application of Listed relocatable power taps in the patient care areas of health care facilities is an important safety consideration. Relocatable Power Taps Relocatable power taps, often called outlet strips, are Listed under the Relocatable Power Taps… read more

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August 9, 2019

Products Used in Air Handling Spaces

Article Focus An objective in model mechanical and electrical codes and HVAC standards is to protect life and property from fire and smoke resulting from fires.One of the protection methods used to accomplish this objective involves restricting the spread of smoke within a building by minimizing the ignition sources and combustibility of the elements within… read more

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Restrained and Unrestrained Assemblies – What Designers and AHJs Need to Know

Section 703.2.3 of the International Building Code (IBC) specifies that fire-resistance-rated assemblies tested in accordance with ASTM E119 or UL 263 are not to be considered to be restrained unless evidence satisfactory to the building official is furnished by the registered design professional showing that the construction qualifies for a restrained classification in accordance with… read more

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August 2, 2019