Batt insulation should be installed in a way that maximizes its performance and prevents moisture infiltration. It's important to install batt insulation tightly between framing members, and to tuck it into the cracks and crevices. Be sure to avoid compressing the insulation, as this will reduce its effectiveness. If you're installing batt insulation over an existing layer of insulation, be sure to remove any flaps or protruding edges before installing the new layer. And always wear gloves when handling insulation, as it can cause contact dermatitis.

There is no one-size-fits-all answer to this question, as the proper way to install batt insulation will vary depending on the type of insulation, the climate, and other factors. However, in general, you should make sure that the insulation is evenly distributed and that there are no gaps or areas where it is not touching the wall. You should also avoid compressing the insulation, as this can reduce its effectiveness.