Wind Pressure on Facade Calculator Spreadsheet

Attached spreadsheet calculates pressure on facade (building envelope wall system) due to wind. If leakage rate on facade is known, it could be used to calculate infiltration due to wind. The leakage rate on facade could be found from manufacturer. Calculating infiltration due to wind is a challenge for several engineers in absence of widely published literate. Air infiltration could significantly affect cooling and heating load and this spreadsheet this help to  quantity this load effectively.