Firm News

Transition. Transformation. Alternation. Development. Switch or shift. Whatever you call it, change is inevitable and bittersweet. GLHN announces the retirement of Henry Johnstone, PE, as President and Cloriza Lomeli, Associate Director of Business Development. Henry joined GLHN in 1988 as a mechanical engineer and developed an expertise in campus utility systems and building heating, ventilating and air conditioning systems that engaged clients from Alaska to Oman to Columbia. Starting as a…

Among one of the greatest technical challenges in many projects is the preparation of the site infrastructure to support the planned new building improvements.  This precursor to the vertical construction phase is termed “Make Ready” and is the first phase of any major new facility installation or expansion. The Make Ready phase may involve developing new power, gas, water, sewer, or information technology infrastructure and often requires the rerouting of…

I asked Sacha how she become interested in AIA?  This is what she shared . . . I initially got involved with AIA through their student organization, AIAS (American Institute of Architecture Students). I was involved in the AIAS – Arizona chapter for 3 years; my first year I was a general member and wanted to see what opportunities the organization would provide. During that time, I went to the…

Donna Mertes, PE, Civil Engineering Department Manager, is our 2020 GLHN’s Employee Owner of the Year. Each year GLHN recognizes an employee-owner who demonstrates our corporate values. Selected by her fellow employee-owners; Donna represents GLHN’s motto of “Our Success Comes from Helping Others Succeed”.  Her attitude, efforts and daily practices promote the collaboration of our integrated architectural engineering team, directly impacting our bottom line.   Donna is a great ambassador…

All About Safety:  UV-C Hazards and Risks Ye Zhang, PE, WELL AP; Joyce Kelly, RA, WELL AP, GLHN Architects & Engineers, Inc. One hundred years of increasingly effective germicidal UV light irradiance has helped mitigate infectious transmission within buildings. Our last paper, “The Ins & Outs of UV-C Germicidal Irradiation” examined how UV-C breaks down the RNA of viruses like Covid-19 in a range of applications including HVAC systems and…

Authored by: Ye Zhang, PE; Joyce Kelly, R.A.,* GLHN Architects & Engineers, Inc. Germicidal UV light irradiation, used for over 100 years, is currently available in half a dozen flavors to deactivate viruses and bacteria in air, water, and surfaces. The RNA of SARS viruses related to Covid-19 virus breaks down with sufficient light in the UV-C spectrum, at the right distance with enough time. Labs evaluate these variables to…