Insulated sectional door panel

A sectional door panel comprising:

• a rolled metal skin part forming a generally planar outer wall;
• opposed top and bottom longitudinal edges to said outer wall and spaced apart inner walls spaced from said outer wall and forming opposed spaced apart cavities at said top and bottom edges and a cavity disposed therebetween;
• at least two prefabricated insulation parts insertable in said cavities formed at said top and bottom edges and at least part of said cavity formed therebetween;
• and
• opposed end stile members secured to said inner walls by mechanical fasteners and closing opposite lateral side edges of said panel.

A method of assembling an insulated door panel for a sectional door comprising the steps of:

• providing a rolled metal outer skin part forming an outer wall, opposed top and bottom edges and spaced apart inner walls;
• providing opposed end stile members engageable with said skin part to close opposite lateral side edges of said panel;
• inserting elongated, substantially rigid insulation parts in cavities formed by said top and bottom edges;
• inserting a substantially rigid insulation part in a cavity formed between said top and bottom edges;
• and
• closing opposite lateral side edges of said panel by attaching said end stile members to said skin part, respectively.