Ready for Drywall! With our blower door test done we are now in great shape for drywall. Since the open house we had a few other items to button up before we cover everything with drywall. 1) Insulate the interior wall cavity. We insulted the remaining 2x4 wall with damp spray cellulose. This is a very effective process to ensure the entire cavity gets insulated. Unlike fiberglass installation, there are no gaps at the edge of the insulation due to "side stapling". Damp Spray Cellulose Close Up of Damp Spray Cellulose After the damp spray insulation we ran a standard size dehumidifier and a 1500W heater to help dry out the cellulose (We could maintain a 60 degree indoor temperature with below freezing temperatures outside). We tested various spots for dampness with a meter. Advanced Fiber recommends a maximum of 24% moisture content before drywall While the face of the cellulose is dry, the cellulose tight to the ZIP System still showed 12% moisture content. There is ...