In this article, we follow up on our April 17 webinar, Meeting Braced-Wall Requirements: A New Portal Frame Solution, by answering some of the interesting questions raised by attendees. During the webinar, we discussed how the Strong-Wall site-built portal frame system (PFS) provides...

The advantages of open-web floor trusses are beginning to decelerate the growth of EWP. Though I-Joist sales per housing start have increased about 6% over the last two years, the trend has slowed considerably. Some of the small gain is due to the continuation of the replacement of solid-sawn...

Now that one third of owner-occupied housing is tightly packed into metro areas, several challenges face our industry. Estimating requires more attention to architectural features and options. Engineering is critical on taller structures, and often requires consideration of mechanical...

I was asked recently why Component Manufacturers (CMs) do not provide the bracing details and holdowns for gable end frames like they do for the common trusses. The question got me thinking because the details are readily available, as are any mechanical connectors that might be needed to...

As discussed in last month’s article, “Addressing the Roof Truss Design Note: 'Provide adequate drainage to prevent water ponding.’,” by Frank Woeste and Scott Coffman, ponding is an issue not always addressed adequately. Ponding is a design issue, a mishap, or an...

The purpose of this article to examine the significance and implementation of a typical note that appears on metal plate connected roof-truss drawings when a top-chord-pitch of ¼:12 or less is specified by the Construction Documents. Three questions will be addressed: What is the...

Increasing use of mass timber as a competitive building product in the construction marketplace requires sound design guidelines to ensure safe, efficient, and economic use of wood products. AWC fire research on mass timber conducted over the last year, with support from the Softwood Lumber...

The recent jobsite installation accident involving truss construction, “Three injured in north Washington County barn collapse,” is a reminder of the incredible value of BCSI-B10 for truss installation contractors who install trusses spanning up to 81-ft. and spaced up to 12-ft....

In the 1960s, Ed Ryan set basic standards for panelizing walls, and for decades his homebuilding company (now NVR Inc.) followed his lead. His standards also made it easy for us to provide his wall panel equipment. The name we gave it, “Panel-Rite,” would have pleased Ed, since he...

Background The model International Residential Code (IRC) permits a design live load of 30 psf for “sleeping rooms.” The model codes specify 40 psf for all other rooms. Of the annoying floor vibration complaints we have received, the most common scenario stems from the use...