"Comparison field","Roll-up offer","Drop-down offer","Difference or unresolved question","Evidence and responsible reviewer"
"Project, supplier offer and actual mechanism name","","","",""
"Ground datum and fixed base/knee-wall boundary","","","",""
"Early-crop floor/bench/canopy drawing reference","","","",""
"Mature-crop floor/bench/canopy drawing reference","","","",""
"Curtain upper/lower boundaries and permitted travel definition","","","",""
"Small opening: clear gap elevation and drawing reference","","","",""
"Small opening: remaining curtain and crop relation","","","",""
"Intermediate opening: actual clear opening and crop relation","","","",""
"Maximum approved opening: clear opening and obstructions","","","",""
"Assessed wind case: inlet/outlet and designer reference","","","",""
"Screen location, resistance reference and moving-edge interface","","","",""
"Curtain retainers and access obstruction","","","",""
"Fully closed: upper/lower/end seal references","","","",""
"Supplier-specific wind/rain limitations and source","","","",""
"Production-layout changes requiring another comparison","","","",""
"Responsible climate designer, conclusion and conditions","","","",""
"Outstanding drawing or assessment and next decision","","","",""
"Use","Use one column for each quoted mechanism. Link actual state sketches; a common travel percentage is not proof of equal opening area. No airflow or vent-sizing calculation.","","Manual worksheet; no formulas or automatic approval.",""
"Source context","UConn mechanism guidance, updated 2013: https://ipm.cahnr.uconn.edu/natural-ventilation-in-hoophouses/ ; current buying-choice example: https://www.gothicarchgreenhouses.com/extra-tall-high-tunnels","","",""