Founded in the 1920s as Aeronautical Radio, Inc., ARINC provides communications and engineering products and services to commercial airlines and government agencies. At their headquarters complex in Annapolis, Maryland, Hoffmann Architects was retained to conduct an investigation into severe brick displacement conditions at a three-story office building.
When an addition to the original 1989 construction was built in 1999, columns of masonry veneer infill were installed between the old and new wall sections. It was at these infill areas that brick had displaced significantly, with masonry loose enough to be moved with little pressure. Poor installation practices at the infill brick were found to be the cause, coupled with sealant joint deterioration at the exterior wall surface. To arrest continued displacement and prevent calamitous wall failure, Hoffmann Architects designed and oversaw a masonry restoration program to remove and reinstall the brick in a method that both kept the wall cavity clear of debris and incorporated additional anchors to stabilize the brickwork.
At the same building, Hoffmann Architects investigated persistent leaks at the lower level. Our architects found that discrepancies between original construction drawings and as-built conditions compromised the water-tightness of the foundation walls. To mitigate leaks, Hoffmann Architects recommended removal of the existing waterproofing system; installation of new flashings, sheathing, and waterproofing membrane; brick veneer reconstruction; and site drainage improvements. We were retained to provide contract documents and construction administration services for the leak remediation project.
Water infiltration was also a concern at a nearby data center building on the ARINC headquarters campus. Built in 1968, the two-story brick building was originally designed to house operational and equipment rooms, but was converted to a computer lab with the addition of gypsum board panels to cover the windows from the interior. Thermal bridging across window frames had led to condensation between the frames and the superimposed gypsum board. Hoffmann Architects recommended the addition of a thermal barrier at the window opening, and we provided multiple remediation options to balance effectiveness and aesthetics with protection of equipment and finishes.