Successful Floors With Trusses - Fine Homebuilding
网页2021年1月15日 · The International Residential Code section R302.12 describes draftstopping requirements for open-web floor trusses; it specifies that when a floor exceeds 1000 sq. ft., the space must be divided into roughly equal areas using an approved draftstopping material, such as 1⁄2-in. drywall, to limit the spread of fire. Special delivery.
Exploring the Benefits of Engineered Floor Joists
网页Engineered floor-framing options such as wood I-joists and floor trusses, however, can span greater lengths with fewer caveats, yielding open spaces easily accessible to designers and framers. Both I-joists and floor trusses minimize or eliminate potential engineering problems and in the end—despite the added upfront cost—might even save money.
Installing Floor Trusses - Fine Homebuilding
网页1998年3月1日 · For instance, if a homeowner wanted to put a whirlpool in the master bath, the engineer might specify two trusses directly beneath the tub or drop the spacing down from 24 in. o. c. to 16 in. o.c. or even 12 in. o.c. All floor-truss installations begin with this plan. On the plan, each truss is numbered or lettered to correspond to its location.
TJI's vs. Floor Truss - Fine Homebuilding
网页2008年12月30日 · TJI’s vs. Floor Truss. I’m designing a house for a client and I’m debating on using TJI’s or floor trusses. It’s a basement house and the A/C loads will be small enough I feel like the duct lines can be run through either floor system…a little more work for TJI’s cutting holes etc. but I wonder if it will be less prone to squeeks.
Attaching a Deck Ledger to Floor Truss - Fine Homebuilding
网页2015年2月21日 · So if you’re framing a deck with 2x8s, be sure to use a larger ledger for proper mounting. There are fastener tables for mounting a ledger to the end of floor trusses (shown) and for mounting to the side of a floor truss (the end truss). One table is for the code-minimum 40 psf live / snow load and the other for 60 psf live / snow loads.
Mounting Deck Ledgers to Floor Trusses - Fine Homebuilding
网页2012年3月29日 · Mounting Deck Ledgers to Floor Trusses. You have to be especially cautious when mounting a deck to a house with an open-web floor truss system. Floor trusses usually have a 2×4 or 2×6 ribbon board along the top edge but it’s inadequate for ledger attachment. Nor can you generally just screw into the truss web.
Understanding Larsen Trusses - Fine Homebuilding
网页2024年1月10日 · Understanding Larsen Trusses. Hanging a truss outside a stick-framed wall is an old idea that hangs in with modern materials, building science, and energy-efficiency goals. In November of 1983, Popular Science published a short article called “Superinsulated House Trusses” that briefly described …
ducting through floor trusses - Fine Homebuilding
网页2010年11月18日 · Cut a piece of 1/4" luan 8' long and a little less than the chase width. Slide it in first and then slide the duct on top of it. That takes a lot of the headache out of bumping 5' sections of duct across the bottom cord of the trusses and dinging it all up. You can pull the luan out after you get your major runs in.
Parallel-Chord Floor Trusses - Fine Homebuilding
网页1986年1月1日 · A joist floor system, on the other hand, costs about $.85 per sq. ft. of floor. This means that material costs for a truss floor are about 6% higher than for a joist floor system. But when the time saved for installing a truss floor (as much as 40%) is taken into account, the truss floor turns out to be about 10% less expensive overall.
How it Works: Roof Trusses - Fine Homebuilding
网页Synopsis: The roofs on most new houses in the United States are built with trusses. In this “How It Works” column, structural engineer Rob Munach explains how trusses carry their loads and how T-bracing and roof sheathing add strength. An illustration shows the compression and tension ratings of a truss that has been modeled with a combined ...