Insulating/sound reduction in Attic
I believe my attic is causing a lot of outside noise to enter into the rooms on my 2nd floor. I have soffit vents as well as a gable vent on the siding. I have 2 questions - if I have the soffit vents, do I need the gable vent (it faces the noise source directly and may be letting in a ton of noise); and what can I put on the attic floor to stop the transmission of the sound into the rooms? The noise is mid to low frequency noise. Thanks!