What is the difference between hollow metal doors and aluminium clad doors?
What you call Hollow Metal Doors are usually made of steel and are filled with expanding foam insulation. The steel shell is the structural part of the door. The insulation provides thermal and acoustic isolation. Aluminum clad doors are solid wood doors that are clad in aluminum. The wood is the structural part of these doors. The aluminum has a baked on color so that repainting is rarely necessary.
