From the Archives: Hail damage to roof shingles

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

“Thermal Insulation for Buildings, Pipe and Mechanical Equipment”, a Complication

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

From the Archives: Foundation Damage

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