Insulated roofing system having a form-fitting compressible seal and ventilation

A roofing system for use with a metal building, said roofing system comprising:

• a corrugated roof being formed from a metallic material, said corrugated roof having a non-planar shape including a plurality of rises having peaks and a plurality of declines having valleys;
• a ridge cap configured to cover a ridge opening in said corrugated roof of the metal building, said ridge cap providing protection for said building;
• a plurality of purlins, said purlins being attached to roofing frame members of the building and in succession forming a base for said roofing system;
• a ventilation member located between said ridge cap and said corrugated roof for allowing air and moisture to vent out of the metal building through said ridge opening;
• a compressible seal having a plurality of slits, said compressible seal providing a seal between said corrugated roof and said ventilation member such that said compressible seal is most compressed at said peaks and more expanded at said valleys, said slits being pressed against said corrugated roof to allow said compressible seal to be configurable to said peaks and said valleys;
• a compressible insulation material to reduce heat transfer through the roof of the building, said insulation material being located between said purlins and said corrugated roof;
• and an insulating vent disposed between said corrugated roof and said insulation material, said insulating vent facilitating transfer of air and moisture that is beneath said corrugated roof and above said insulation material to allow the air and moisture to vent out of said ridge opening and through said ventilation member to the exterior of the metal building.