| 摘要 |
A roofing element such as a concrete tile is provided that includes a body portion extending between a head end and a nose end. The body portion includes a lower surface, an upper surface, and a protrusion that is disposed substantially adjacent the nose end and extends downwardly from the lower surface. The protrusion is disposed on the lower surface such that when a nose end of a second roofing element is installed vertically above a head end of a first roofing element and overlapping by at least 3 inches, the protrusion of the second roofing element is positioned substantially above an aperture defined in the head end of the first roofing element. The protrusion reduces a distance between the aperture of the first roofing element and the nose end of the second roofing element, which increases the likelihood that the adhesive will securely join the first roofing element with the second roofing element.
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