Anchoring grids to concrete ceilings is sometimes easier said than done.  Concrete slabs are sometimes strengthened using a process called post tensioning, a method that uses embedded high strength steel cables to reinforce the concrete.  Although this construction technique produces concrete sections with excellent structural integrity, locating post-tension cables (and rebar or conduit for that matter) in concrete presents a challenge. Making contact with post-tension tendons when drilling holes can cause catastrophic failure of overhead concrete panels. 

We recently installed a ceiling grid for a simulation lab at the Cleveland Clinic. Read More…