1994 was the year of a major HUD insulation standards change. The policy was set in 1992 and the change date deadline was in Oct of 1994. If your home was purchased before this date, it may have already had the updated standards (R22 in ceilings, R-19 floor, R13 in walls for Zone 2) as most manufacturers changed to the new code (or was already building within the new code) by the beginning of 1994. But the sale of homes built to 1976 standards (R11 in ceilings, R-11 floor, R11 in walls for Zone 2, zones actually changed in 1994) was legal until Oct 1994.
Anyways, the insulation will not be as bad as almost all homes built before 1976. Adding insulation properly usually entails new siding and a new roof, a very expensive change. Drafts can be stopped cheaply with weather stripping and caulk.
Today is PERFECT!
All information and advice given is for entertainment and informational purposes only. The person doing the work is solely responsible to insure that their work complies with their local building code and OSHA safety regulations.