Apply duct tape or masking tape to any weeping seams, holes or porous locations. This may cease any Fuel Tank Sealer from oozing out, and will permit it to bridge over the hole. Plug the outlet ports with putty or Participate in-Doh. The level of fire rated duct insulation required https://caswellgroup56677.blogadvize.com/44446173/ductworth-installation-for-dummies