b'THE OFFICIAL NFBA MAGAZINELET IT SNOW! LET IT SNOW! LET IT SNOW?!?Post-frame building owners should be able to enjoy long, peaceful, winter naps for years to come if their buildings are properly engineered, TECHNOLOGY & RESEARCHconstructed, and maintained.Aaron J. Halberg, P.E. Halberg Engineering LLCO verthepastdecade,snowhastheyarestructurallyefficient, contributed to the collapse of manyenvironmentallyfriendly(low buildingsthroughoutruralareas,embodied energy) and affordable. especiallywherelargebuildingsareexemptAs a result, when collapses occur in from building codes and inspections.Mostthese areas, they are likely to include a large number recently, in February and March of 2019, manyof post-frame buildings.Although it varies by state, buildingscollapsedthroughoutMinnesota,rural and agricultural buildings are often exempt Iowa, and Wisconsin after receiving relativelyfrom building codes and inspections in many high seasonal snowfall amounts (see Fig. 1). states, regardless of building size (see Figure 3).Some think of this as natures way of spring- For buildings with no building code requirement, a cleaning,removingoldandweakbuildingsbuilder and owner can agree to whatever building from our communities, but I have witnessed newdesign specifications they want, meaning it would buildings collapse, as well as the old (see Fig. 2). be legal to construct a building that has been Many of the larger buildings constructed forengineeredtosupportloadslowerthanthe farms or storage are post-frame buildings becauseminimums prescribed in the ASCE 7 standardFigure 1: Seasonal Snowfall totals in the Midwest from 2013-14 and 2018-19 winter seasons, each of these winters resulted in numerous collapses. (Graphic Source: nohrsc.noaa.gov)14 / FRAME BUILDER -APR2020'