Extremes in temperature, either hot or cold should be avoided. These plants can survive , with only household incandescent or fluorescent lighting if they receive a minimum of 16 hours of light each day. Although this will be effective in keeping the plant alive for a year or two, there is no substitute for bright, natural light. Turn the plant frequently to keep it symmetrical. In the winter, allow the soil to dry completely before watering again.
Humidity is very important.
Lack of sufficient moisture in the air will cause tip browning, needle drop, and eventually, the lower branches to die off. Norfolk Pines are one of the very few plants who enjoy being misted with COOL water, rather than room temperature water. The only pruning that should be done is snipping off brown tips and dead branches. Brown tips will never turn back to green, and unfortunately, once they have turned brown, growth will stop from that point. Norfolks resent replanting, so they should only be repotted every 3-4 years , in the spring.