| 摘要 |
A building having rows of overlapping shingles defining an air passage therebetween. The overlapping rows of shingles include one longitudinal row having an outer edge region overlapping and situated outwardly of an inner edge region of an adjoining row of shingles with these shingle rows respectively having overlapping surface areas directed toward each other. Rows of spacers are situated between these overlapping surface areas to maintain them spaced from each other, and the spacers of one row are staggered with respect to the spacers of the other row with all of these rows extending horizontally. Thus, while air can blow between the rows of spacers and thus between the overlapping surface areas of the shingles, a liquid such as rain cannot progress therebetween.
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