Cooling Calculations R Value Wall Material Please Select Tent Brick- Uninsulated Brick- Light Insulated Brick- Well Insulated Wood- Uninsulated Wood- Light Insulated Wood- Well Insulated Metal- Uninsulated Metal-Light Insulated Metal- Well Insulated Manual Roof Material Please Select Tent Brick- Uninsulated Brick- Light Insulated Brick- Well Insulated Wood- Uninsulated Wood- Light Insulated Wood- Well Insulated Metal- Uninsulated Metal-Light Insulated Metal- Well Insulated Manual Structure Length (ft) Structure Width (ft) Wall Height (ft) Peak Height (ft) Ambient Temperature (F) Desired Internal Temperature (F) Day or Night Please Select Day Night # of People Wattage of Lighting (W) Wall Calculations Required BTU's Ceiling Calculations Required BTU's Additional Load Calculations Required BTU's Total BTU's Required Tonnage This formula assumes return air. If return air is not used tonnage must be derated.