A contractor was attempting to survey roof damage from a storm. As he climbed the ladder provided by the property owner, he fell on reaching the top of the ladder while attempting to step off onto the roof. An ACS expert was assigned to investigate. The fiberglass extension ladder was rented while lacking foot pads. … More From the Archives: Ladder Safety #2
A residential home was destroyed by fire that had originated in the attic in the vicinity of a propane furnace vent. An ACS engineer investigated the fire. After ruling out electrical systems in the area of origin, it was determined that the propane furnace had been venting into the attic space rather than externally from … More From the Archives: House Fire #1
A woman working at a retail store fell from a ladder and was injured while reaching for a product on one of the shelves. The shelf was 8 feet from the ground, the employee was 5 feet tall, and the 4 foot step ladder could only accommodate a 2 foot climb safely. The decals on … More From the Archives: Ladder Safety, #1
It is with great sadness we announce the loss of our dearest friend and colleague, Sergio Garibay, P.E. Obituary Page Link Below is video Ed Jensen took for a case with Sergio demonstrating. I created the video below as an equipment test. Sergio said it stuck in his head. He was a father, a husband, … More Sergio Garibay, P.E. (1955-2019)
Following a hail storm, a homeowner’s roof damage was reported to their insurer. An ACS engineer investigated and found small regions of lighter-colored aggregate amongst the three tab composition asphalt shingles as well as other regions in which the asphalt protection in the layer below the aggregate was exposed. Other indications of hail damage were … More From the Archives: Hail damage to roof shingles
This month’s (February 2019) Plumbing Engineer magazine featured an article discussing insulation engineering considerations. The general topics covered are the major points that need to be addressed: (a) the basics (b) history of thermal insulation (c) how heat transfer works and (d) applicable codes and standards. This makes it a great reference article. An expert … More “Thermal Insulation for Buildings, Pipe and Mechanical Equipment”, a Complication
A swivel office chair failed while in use causing injury. ACS engineers studied the damage to the chair and found that it had separated between the seat support assembly and the supporting pedestal. Inspection of the insert portion of the seat support assembly showed that the failure occurred on the bottom side of the insert’s … More From the Archives: Chair Failure
A residence in the Gulf Coastal Plain’s Quaternary deposits of sand- and clay-rich soil experienced a variety of structural damages including plasterboard fractures, mortar separation, bulging windows, and foundation fractures. Examination of the upper structure damage, the foundation, and the soil was undertaken. The western portion of the residence was less damaged than the eastern, … More From the Archives: Foundation Damage
Recently, Colonel Hanavan wrote a series of volumes on the C-7A Caribou in Vietnam. First Lieutenant Jensen (at the time) worked in safety as well as piloting cargo. His service included being awarded the Distinguished Flying Cross.
Assigned to investigate a residence fire, the effort was made to determine if an active appliance caused the fire. Electrical components of the residence consisted of the circuit breaker panel, the electrical wiring in a pile of debris, and an air handling unit. The circuit breaker panel showed no evidence of malfunction. The appliances formerly … More From the Archives: Indeterminate Fire
