Category Archives: Case Studies

Damage from an Explosion Within a Dwelling

Posted by in Case Studies, Explosion Damage | September 21, 2020

An explosion generates sudden, excessive air pressures.  Excessive air pressures produce a wave of air that moves outward in all directions (radially) away from the origin of the explosion.  The pressure from the wave of air decreases in magnitude as… Read More

Why is the Brick Veneer Laying on the Ground?

Posted by in Case Studies, Masonry | August 24, 2020

In the last technical post I discussed the structural basics of brick veneer:  what holds it up, what holds it on, and what help does it provide. In this post I look into why the brick veneer above fell off… Read More

What is Brick Veneer?

Posted by in Case Studies, Masonry | August 10, 2020

What is brick veneer? And why is it laying on the ground in the featured photograph? Brick veneer is in essence a masonry siding, which has been set separate, that is, with an air space (commonly called a cavity), from… Read More

Was the Fallen Plaster Ceiling Damaged by Water?

Posted by in Case Studies, Ceilings | July 27, 2020

We were informed that a portion of a plaster ceiling had fallen (featured photograph). The question was, “Was it related to a previous water incident?” The account of the water incident indicated that it occurred on the floor directly above… Read More

A Baffling Issue (at 1st) with a Raised Patio Deck

Posted by in Case Studies, Soil Issues, Winter Concerns, Wood | June 15, 2020

When we get reports of a raised patio deck pitching down, sliding glass doors in the patio walls binding, and doors not latching anymore, we begin by measuring the pitch of the floor and walls to help determine what is… Read More

Clay Brick Expansion – It is Real

Posted by in Case Studies, Cracking, Masonry | April 20, 2020

I just attended a webinar about movement joints in masonry.  The topics included the different types of movement joints (isolation, expansion, and contraction); why the need for movement joints; and where to place movement joints.  I’ve been designing, detailing, and… Read More

What Can Happen to Unbraced Wood Truss Web Members? Part III

Posted by in Case Studies, Wood | February 25, 2020

So, to continue on from last weeks post. How did we know that the wood trusses had buckled sideways previously and were reset? Examination of the top chord in the featured photograph shows two nails saw off flush with the… Read More

What Can Happen to Unbraced Wood Truss Web Members? Part II

Posted by in Case Studies, Wood | January 27, 2020

So, what happens when the web members of a wood truss are not braced laterally as specified by the truss manufacturer? When a wood truss is designed and constructed by a truss manufacturer, the manufacturer commonly provides drawings that show… Read More