| 摘要 |
A roof ridge venting system using a mat constructed of randomly-aligned synthetic fibers which are joined by phenolic or latex binding agents and heat cured to provide an air-permiable mat with a varying mesh. The mat is a unitary sheet construction having no dissimilar sheets laminated or otherwise bonded together. In an alternative embodiment for use with heavier slate or terra cota tiles, the mat includes a grid pattern of small solid cores extending through the thickness of the mat.
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