Composite fire-proof, heat-barrier door

A composite fire proof, heat barrier door, comprising:

• a casing trim configured with a left pillar, a right pillar and an upper pillar, each of said pillars being formed of a wood pillar having front and rear pillar portions laminated with protecting frames made from stainless plate, and a fire proof expanding seal, characterized in that one end of each of said pillars is provided with a cutout, said cutout being provided with said seal groove having a retained fire proof expanding seal therein, and wherein in a transient area between said protecting frames and said respective pillars, a fire proof heat barrier expanding membrane is laminated therein to protect said respective pillars;
• and
• a door pivotally mounted to said casing trim and including front and rear panels formed of stainless plate and having longitudinal sides with peripheral edges folded inwardly, characterized in that inner walls of said front and rear panels are provided with rigid heat barrier fire proof plates, the longitudinal sides of said front and rear panels are provided with high duty fire proof foam heat barrier plates, said high duty fire proof foam heat barrier plates each being supported an a wood structure, the central portion of the door being provided with heat preserving material, the peripheral edges of said door being provided with a rigid sealing plate having a groove whereby an additional high duty fire proof foam heat barrier plate can be coupled thereto, and a plurality of screws connects said rigid sealing plate to said wood structure.