Covering system for a building substrate

A covering system for a roofing substrate, comprising:

• at least two roof panels, wherein each of the roof panels comprises a top side and two opposite, gutter shaped joints, wherein the joints have two sidewalls formed at about 90 degrees to a base wall;
• a cleat configured to accept adjacent joints of the at least two roof panels;
• a compression cap configured to bridge the adjacent joints, the compression cap having:
• a top surface and a bottom surface,
• at least two gaskets on the bottom surface which form a watertight seal with a portion of the base wall of each of the adjacent joints of the at least two roof panels,
• at least two grooves on the top surface configured to receive a sealant material, and
• a central channel;
• at least one screw which secures the covering system to the roofing substrate by attaching the compression cap and the cleat to the roofing substrate;
• and
• a cover cap having a top side with an inner surface and sidewalls formed at about 90 degrees to the top side, wherein the top side of the cover cap is flush with the top sides of the at least two roof panels,
• wherein the central channel of the compression cap is configured to accept the at least one screw, and the sealant material placed in the at least two grooves on the compression cap secures the cover cap and provides a watertight seal between the inner surface of the cover cap and the top surface of the compression cap.

A covering system for a building substrate, comprising:

• at least two panels, wherein each of the panels comprises a top side and two opposite, gutter shaped joints, wherein the joints have two sidewalls formed at about 90 degrees to a base wall;
• a joint linking system which connects the at least two panels at adjacent joints;
• and
• means for attaching the covering system to the building substrate along the joint linking system, wherein the joint linking system provides a weather-tight seal on the building substrate,
• wherein the joint linking system is sized to allow lateral movement of the adjacent joints of the at least two panels,
• wherein the joint linking system lies flush with the top sides of the at least two panels.