Steel

Today, the U.S. Department of Commerce announced its procedures for excluding products from the recently announced tariffs on steel and aluminum product imports.

On March 8, President Trump signed two proclamations to temporarily increase tariffs on imported steel by 25 percent and aluminum by 10 percent. The new tariffs will take effect March 23, but it’s currently unclear how long they will remain in place and which countries they will ultimately be imposed upon.

President Trump is anticipated to slap new tariffs on aluminum and steel later this week, or early next week. Some are wondering, will these be applied to everyone?

Rebuilding a historic church after a ruinous fire was a project not to be forgotten.

While steel consumers will likely continue to take a “wait and see” attitude, the findings the DOC emphasized in their report to the president indicate there may be future trade action to protect domestic producers.  President Trump has until April 11 to act on the DOC’s recommendations.

As a forensic engineer who has investigated numerous collapses of wood truss systems, I find your web site an excellent resource on the proper erection of wood trusses. What are your opinions on steel trusses, particularly with regards to installation and bracing? Do you feel that the installation and bracing techniques utilized for wood trusses are applicable to steel trusses? Do you know if that is the general industry standard or are there specific requirements and guidelines for steel trusses? Is there a particular guideline/commentary available for metal trusses?

I need to obtain some information on fire-retardant-treated roof trusses.

I have recently heard of a problem with fire-retardant-treated wood (FRTW) trusses that were manufactured and installed in 1965-1980. I was searching for more information, since my job involves the protection of property in our member school districts. I had heard that the trusses make of FRTW during that time period can or will become corrosive to the hardware and the trusses will fail.

I am looking for a 1-hour roof/ceiling assembly for wood truss construction. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. Is this possible without using channels and what UL number would I use?

In RC 2601, is RC-1 Channel used?