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DCA3: Designing fire-rated I-joist assemblies

Construction Specifier

For years, Design for Code Acceptance #3 (DCA3), a document published and maintained by the American Wood Council (AWC), has been the go-to resource for architects working with I-joist assemblies. It is relatively common for building owners to ask for their floor assemblies to be designed to exceed these code minimums. By Anton Dekom.

Design 52
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Effects of acoustical ceiling panel type: Vertical sound isolation

Construction Specifier

The information that does exist is mostly for multifamily residential buildings with wood framing/flooring and gypsum board ceilings. STC is measured in a laboratory and is used as reference during design. Noise isolation is also important between vertically adjacent rooms. earn a minimum ceiling attenuation class (CAC) rating of 35.

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This is T-SLAB — the future of precast concrete floor systems

Construction Specifier

That means builders and designers are often forced to compromise one key capability for another, such as flexibility for speed. T-SLAB is a unique, patented precast concrete floor system that was designed to be more versatile than any slab system on the market. Apartment Buildings. Medium-Rise Structures. Long spans.

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Introducing T-SLAB—the latest revolution in precast concrete flooring systems

Construction Specifier

That means builders and designers are often forced to compromise one key capability for another, such as flexibility for speed. T-SLAB is a new, patented precast concrete flooring system that was designed to be more versatile than any slab system on the market. Additionally, T-SLAB provides significant design flexibility.