| 摘要 |
An interleaf for creating a visible roof feature. The interleaf has a first surface defining a first side. The interleaf has a second surface defining a second side. The interleaf has one or more contact points which define a third side of the interleaf. The third side of the interleaf defines a second acute angle with the second surface and a first angle with the first side. The first surface of the interleaf is visible when the interleaf is placed between two or more courses of shingles on a roof and the third side contacts a portion of a shingle.
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