| 摘要 |
An insulation plate has an external peripheral edge portion provided with a continuous circumferential array of serrated teeth. The serrated teeth are adapted to engage a release sheet, disposed upon an underlying environmental membrane of a fully-adhered environmental membrane system covering roof decking substructural components, as the release sheet is effectively moved into engagement with the serrated teeth. In this manner, the release sheet is readily and easily severed along a well-defined locus where-by the release sheet can be easily removed so as to uncover an adhesive layer disposed upon the upper surface portion of the underlying environmental membrane in preparation for securing an overlying environmental membrane atop the underlying environmental membrane in order to form the fully-adhered environmental membrane system. Alternatively, the continuum of serrated teeth may be oriented axially downwardly so as sever the release sheet as the insulation plate is effectively rotated along with a threaded screw fastener as the latter is threadedly engaged within the underlying roof decking substructure. In addition, both the radially outwardly and axially downwardly oriented serrated teeth also serve to fixedly and assuredly retain the underlying membrane upon the underlying roof decking substructure in order to effectively resist uplifting wind forces.
|
