All Things Wood: Addressing the Roof Truss Design Note: “Provide adequate drainage to prevent water ponding.” Frank Woeste 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... Read More January 2019 Issue #11234 Page 46
Errors in Substituting Dead Load for Live Load in Wood Design Scott Coffman Introduction Custom kitchens, with high-end appliances, granite countertops, and central islands, are becoming more and more prevalent in the home market today. These products and finishes are heavy and the dead loads from the central islands and/or cabinets positioned along interior... Read More October 2018 Issue #10231 Page 48
When Fashion Affects Structure—Floor Design Considerations for Preventing Tile and Stone Cracks Frank Woeste Two kinds of designers are involved in home construction—design professionals responsible for the structure and the interior-focused designers responsible for the final appearance. Although these roles can overlap, it is important for design professionals to be aware of in-service demands... Read More June 2018 Issue #10227 Page 60
What Building Professionals Need to Know About Construction Loading Shawn Overholtzer Understanding construction loading is important as it relates to the acceptable practices in terms of staging and storing construction materials prior to installation. What does “construction loading” mean? This term describes materials and people that are present during the course... Read More January 2018 Issue #10222 Page 16
All Things Wood: The Pioneer of MSR Lumber Frank Woeste The knowledge we take for granted today on MSR lumber is due in large part to the pioneering work of Professor Robert Hoyle, P.E. In the early 1960s at Potlatch Forest, Inc., he conducted basic research on the relationship between stiffness and strength of lumber, paving the way for the MSR... Read More October 2017 Issue #10219 Page 74
Accommodating Truss Movement (Besides Vertical Deflection) Kelly Sias Vertical deflection resulting from live and dead loads – of both roof and floor framing components – is an important serviceability consideration in the overall design of the building. And while this could be a topic in and of itself, this article is instead going to focus on two... Read More August 2017 Issue #10217 Page 82
So What is the Big Deal About Member to Member Gaps? Glenn Traylor Compliance with ANSI/TPI 1–2014 requires maintaining member to member gaps at less than 1/4 inch. An exception would be for floor truss chord splices where the limit is 1/16 inch. Let us take a look at two different situations, the first being a roof truss and the second being a 4 x 2... Read More June 2017 Issue #10215 Page 30
All Things Wood: How to Predict a Bouncy Floor Frank Woeste 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... Read More June 2017 Issue #10215 Page 68
Question of the Day: Component Manufacturing Industry 'Gotchas' Stan Sias “I am new to the component manufacturing industry, what are some of the industry’s ‘Gotchas!’? Thanks for this Question. There are several ‘Gotchas!’ that come immediately to mind. Perhaps the one most often cited is not having, and sticking with, a... Read More May 2016 Issue #09202 Page 4