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公开(公告)号:US20240183163A1
公开(公告)日:2024-06-06
申请号:US18527882
申请日:2023-12-04
发明人: Stephanie Pruzinsky , Martin Vido , Toni Newsome , Brian Shaeffer , Marcos Cortes-Medina , Melissa Nogaj , Stephanie Maxson , Dinh Chi Pham
CPC分类号: E04D12/002 , B32B3/30 , B32B7/12 , B32B27/12 , B32B2250/03 , B32B2307/536 , B32B2307/7376 , B32B2419/06
摘要: A roofing underlayment with enhanced walkability is provided. The roofing underlayment has a reinforcement, a film, and a plurality of gripping structures. The gripping structures are disposed on at least a portion of a first film surface of the film. The roofing underlayment has at least one of a coefficient of friction of between about 1.2 and about 1.8 when tested in dry condition using COF method 1, a coefficient of friction of between about 0.8 and about 1.5 when tested in wet condition using COF method 1, and a coefficient of friction of between about 0.5 and about 1.2 using COF method 1.