ok, i want to re drywall my garage celing, its all falling down and had water lines burst in the past before i owned it.. needs cleanin up.. so my garage is actually part of the basement, the master bedroom/bathroom is directly above the garage. while im redry walling it i wanna putin new insulation, move the water lines as tight to the upperfloor as possible to help from freezing. my biggest question is the vapor barrier, i konw i need one. what i dont know is the proper way of installing it? do i just insulate and put the barrier accross the joists directy under the drywall. or do ya try and tuck the barrier tight to the upper floor, then insulate?? any help would be great!
also is there a better alternative than 5/8 drywall?? the garage is commonly damn