Light Gauge Metal Framing A Sustainable Alternative to Wood

Light Gauge Metal Framing

A Sustainable Alternative to Wood

J.M. Syken

Course Outline

In this course, we will examine the sustainability, manufacture, pros/cons, workability and application of Light Gauge Metal Framing (LGMF). As well, our review will include a comparison of traditional wood framing vs. LGMF for residential structures, in particular. This will highlight both the similarities and differences between the two most popular methods for residential framing: dimensional lumber and/or cold-formed steel. Design standards and components used in LGMF as a “piece-for-piece” replacement for wood as well as “hybridization” will be discussed as well.

In particular, we will focus on the sustainable benefits of LGMF such as recycled content, LEED applicability, inertness, termite-proof etc. Also, other benefits such as dimensional stability, mechanical attachment, lightweight, seismic performance etc. will also be discussed, as will be the methods to overcome the thermal disadvantages of LGMF. The methods of joining LGMF and systems for framing the superstructure of a residential building will be examined in depth and detail. As well, “stick-built,” panelized and pre-engineered systems as well as the “Prescriptive Method” for LGMF will be reviewed/discussed.

This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.

Learning Objective

At the conclusion of this course, the student will:

Understand/appreciate the manufacturing methods/impacts of steel as the basic material for LGMF;
Understand/appreciate the many environmental/sustainable benefits of LGMF as compared with wood;
Understand/appreciate the problem of “Thermal Bridging” when using LGMF and the various methods used to mitigate the problem;
Understand/appreciate the cold-forming process as it relates to manufacturing LGMF components;
Understand/appreciate the types, sizes, gauges, coatings etc. for LGMF components;
Understand/appreciate the problems associated with preservative treated wood when in contact with LGMF components and the methods/means to mitigate the problem/s;
Understand/appreciate the problem of termite infestation in wood frame structures and the benefits of LGMF as an inorganic/inedible alternative;
Understand/appreciate the relationship between the lightweight nature of LGMF and its resulting benefits during seismic events;
Understand/appreciate the incombustible nature of LGMF and its performance in fire events as compared with wood framing;
Understand/appreciate the IEQ/IAQ benefits of LGMF including its resistance to mold/mildew;
Understand/appreciate the price stability of LGMF as compared to dimensional lumber;
Understand/appreciate the ease of adapting LGMF as a “piece-for-piece” replacement for wood framed, stick-built structures;
Understand/appreciate aspects of working with LGMF including safety, screw, pinned, welded and clinched connections;
Understand/appreciate the Prescriptive vs. Performance Method/s for using LGMF;
Understand/appreciate the differences between stick-built, panelized and pre-engineered LGMF; and
Understand/appreciate the materials, methods and systems for foundations, floors, walls and roofs as applied to the superstructure framework of a residential structure utilizing LGMF.

Intended Audience

This course is intended for architects, engineers and other design professionals.

Benefit to Attendees

The attendee/s will gain an intimate knowledge and insight into the benefits and uses of LGMF

Course Introduction

The course includes an in-depth PowerPoint presentation and the viewing of a five-part informational film.

Course Content

In this course, you are required to view/study the following slideshow and the materials contained in the web pages:

Light Gauge Metal Framing: A Sustainable Alternative to Wood (printable handout in PDF, 5 MB, see Note A below for downloading instruction)

Light Gauge Metal Framing: A Sustainable Alternative to Wood (non-printable slideshow for screen-viewing only, 19 MB, see Note A below for downloading instruction)

Archival/Documentary Film:

TITLE: Sustainable Design Using Cold Formed Steel
LINK: https://www.youtube.com/watch?v=LVt3GE1LIHI&list=PL5Q7htwx1H7fP6l07Se4_qgrl8OE_pMki
DURATION (Modules 1~5): 51:01
Module 1: 05:57
Module 2: 12:20
Module 3: 17:11
Module 4: 06:58
Module 5: 09:55

Note A: Please click on the above underlined hypertext to view, download or print the document for your study. Because of the large file size, we recommend that you first save the file to your computer by right-clicking the mouse and choosing "Save Target As ...", and then open the file in Adobe Acrobat Reader from your computer.

Course Summary

They’re indistinguishable as a finished product, but the house framed with steel has many advantages as compared to its counterpart framed with traditional dimensional lumber. These advantages have been widely recognized by developers, designers, workmen, governmental agencies and the end-user. With dwindling natural resources and a growing consciousness of the effects of the built environment on the natural environment, it was inevitable that Light Gauge Metal Framing would be recognized and put to good use as the logical, sustainable alternative to wood framing. For the “mechanic” in the field, the transition between the two systems is quick and easy and readily lends itself to be favored for the lightness, flexibility and strength it imparts. The use of steel – the most recycled material on earth, reduces the need for raw material extraction and eases the burden on landfills. Even the problems associated with the thermal conductivity of LGMF can be easily and efficiently overcome. It all adds up to a “win-win” situation for LGMF to serve as the preferred sustainable alternative to wood.

Related Links

For additional technical information related to this subject, please visit the following websites:

http://cssbi.ca/
(Canadian Sheet Steel Building Institute)

http://www.steelframing.org/index.php
(Steel Framing Alliance)

https://www.youtube.com/watch?v=cX1wxJ9E_Gc#t=25
(Jobsite Steel Framing Systems Panelizing Factory – Video-03:11)

Quiz

Once you finish studying the above course content, you need to take a quiz to obtain the PDH credits.

DISCLAIMER: The materials contained in the online course are not intended as a representation or warranty on the part of PDH Center or any other person/organization named herein. The materials are for general information only. They are not a substitute for competent professional advice. Application of this information to a specific project should be reviewed by a registered architect and/or professional engineer/surveyor. Anyone making use of the information set forth herein does so at their own risk and assumes any and all resulting liability arising therefrom.