|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||52/410 ; 52/409 ; 52/512 ; 52/467|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 25 인용 특허 : 11|
An improved method of attaching a roofing membrane to an underlayment and an improved roofing construction made by the improved method. A screw and a composite roofing washer are used to attach the membrane to the underlayment. The composite roofing washer is an interlocked assemblage of a metal roofing washer and a thermoplastic insert. After the screw has been driven, the thermoplastic insert is heated so as to cause some of the material of the thermoplastic insert to flow over the head of the screw, thereby to heat-seal the screw to the thermoplastic ...
A method of attaching a sheet of roofing material, such as a roofing membrane, to an underlayment, such as a metal or wooden deck, possibly with one or more layers of roofing material, such as a blanket of roofing insulation, between the sheet of roofing material and the underlayment, the method comprising: (a) providing a screw having a head and having a threaded shank, (b) providing a composite roofing washer being an assemblage of (1) a metal roofing washer having a central aperture and having a countersunk cavity, which includes the central aperture,...