If you don't want to loose ceiling height, you will need to remove the celing covering to gain access to the floor joist cavities.
A product we've had great sucess with is Roxul (http://www.roxul.com ... read more
Is there anything I can do from inside my attic to battle ice dams? I'll worry about preventing them next, for now I have them and want to speed up their melt.
Air sealing and insulation of the exterior top plates is critical to preventing that warm and moist air from warming the roof deck.
Attic ventilation is critical to keep that attic dry and as close to ... read more