I live in El Paso, TX and am having blown in insulation added to my attic. I currently have continuous soffit vents, two turbines, and six square vents. All the contractors that bid on the job said I did not need to worry about soffit vent chutes. That they would blown in the insulation throughout the attic blocking them and in the winter I would leave me turbines open. This does not seem right to me. It would seem that the soffit vents need to stay open for proper air circulation. Am I wrong or are these guys trying to take me? I would appreciate any help.