No, the insulation mustn't touch the drywall. Insulation is intended to regulate temperature; if it touches the drywall, it will eventually take in humidity through the air, which can lead to mildew and mildew growth. Apply adhesive to the again of your hatch and push a bit of rigid foam https://rylan9iryg.myparisblog.com/32790596/5-simple-statements-about-insulation-installation-explained