$ Help air/draught proofing front door and sound proofing wall

San Francisco CA

Description

Hi 1.There is a strong aircraft coming from my front door, it needs to be completely air/draught proofing. 2.I can hear trough a wall from my neighbour apartment (separate apartment adjacent to mine) I was thinking to add a drywall (two layers glued with green glue to the existing wall), or I think some insulation, cellulose panel an on top of it quiet rock drywall, both screwed together in the studs (found by a stud finder) of the existing wall Drywall plus cellulose panel is 3/4 inch Screw 2 inches So goes inside 1 1/4 inches Existing Wall thickness about 3 inches Space for drywall and other panel before door starts on the side of wall is 2 1/2 inches Height wall 106 1/2 inches Width 170 1/4 inches Plinth 7/8 inches I might just need an help in carrying the drywall panels on the second floor of my house, they are 4x8 feet, quite long Or I was also thinking maybe to cut the panel in smaller pieces 16x28 inches weight 6.8 pounds holder on the suds of the existing wall by strong velcro that can hold up to 10 pounds. Or buy some foam acoustic panel or simple foam lawyers to be added on the wall behind 2-3 big bookshelves. I can buy the materials and do the job just need some supervision and advices, you dont have to physically come in my house, we can videocall I can pay 100$ or less, it depends. I am not even sure what's my exact plan yet. Cellulose foam panel at Lowe’s Drywall quiet rock at Lowe’s: