Panel assembly strip by clamping on a supporting frame

A strip for clamping a periphery of a panel to a section of a support structure to form a closed chamber, the strip comprising:

• a body including a base having two sides extending generally perpendicular to the base from opposite edges of the base, the base and the sides defining a straight groove dimensioned to overlap one edge of the panel and one edge of the section to clamp the panel and the section together, one of the sides having a plurality of threaded holes extending therethrough, each threaded hole having a clamping screw disposed therein, and
• a bearing buffer having a length equal to about a length of the body and at least one hole extending through the bearing buffer, the bearing buffer positioned within the straight groove of the body at a location adjacent the side of the body that the clamping screws extend through, at least one of the clamping screws having a clamping end configured for engaging and clamping the at least one of the clamping screws into the at least one hole in the bearing buffer while allowing the at least one of the clamping screws to freely rotate relative to the bearing buffer.