A strip for use in sealing one or more roof penetrations comprising a strip including a plurality of panels positioned in a side-by-side manner, a plurality of flanges positioned in a side-by-side manner, a plurality of first hinges interconnecting the panels, and a plurality of second hinges interconnecting the panels with the flanges. The flanges being bendable relative to the panels. At least a portion of the strip configured to be disposed about the roof penetration to form a container for receiving sealant with the panels of said at least a portion of the strip extending generally perpendicular to the roof and the flanges of said at least a portion of the strip being bent relative to the panels to extend generally parallel to the roof. The remaining portion of the strip may be used to seal one or more other roof penetrations in a similar manner. A kit for sealing one or more roof penetrations including the strip, a container of adhesive and a container of sealant. A method for sealing one or more roof penetrations using the strip.