Fastener for securing roofing material to cementitious roof decks having removable tab
US4627207A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 15, 1981 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | Oct 15, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D5/143
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fastener for securing built-up roofing membranes used to waterproof cementitious roof decks combines the conventional nail used for this purpose having a head and a shank portion designed to resist withdrawal of the fastener from the deck, with a non-integral tab penetrated by the shank of the nail and of larger diameter than the nail head, the tab having a design which allows the fluid asphalt conventionally poured over the nail during construction of the roofing membrane to bond the portion of the membrane beneath the tab and thereby increase the wind uplift resistance of the covering material. Removability of the tab allows its detachment in applications where increased uplift resistance is unnecessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.