Abstract: A roofing article having a body, a first channel defined within an upper portion of said body having an inlet through which outside air can enter the first channel, and a second channel defined in a lower portion of said body. A sheet separates the second channel from the first channel. The second channel is operably connected to the first channel through an orifice in the sheet such that the outside air can enter the second channel through the orifice.

Abstract: A roofing system and article for installation on a roof deck. The roofing article includes a body having an upper portion and an underside. A first channel is defined within the upper portion. The first channel includes an inlet. A second channel is defined intermediate the underside of the body and the roof deck. The second channel is operably connected to the first channel through an orifice, such that the outside air can enter the second channel through the orifice.

Abstract: A roofing system and article for installation on a roof deck. The roofing article includes a body having an upper portion and an underside. A first channel is defined within the upper portion. The first channel includes an inlet. A second channel is defined intermediate the underside of the body and the roof deck. The second channel is operably connected to the first channel through an orifice, such that the outside air can enter the second channel through the orifice.

Abstract: A system for management of a roof having first and second decks covering an unconditioned space in a building and a peak, the system having a first channel extending from proximate a lower end of the first deck towards the peak and a second channel extending from proximate a lower end of the second deck towards the peak. The system further includes a router positioned proximate the peak, the router enabling air flowing to the peak from the first channel to be selectively routed to one of a plurality of directions.

Abstract: A roofing system and article for installation on a roof deck. The roofing article includes a body having an upper portion and an underside. A first channel is defined within the upper portion. The first channel includes an inlet. A second channel is defined intermediate the underside of the body and the roof deck. The second channel is operably connected to the first channel through an orifice, such that the outside air can enter the second channel through the orifice.

Abstract: A system for management of a roof having first and second decks covering an unconditioned space in a building and a peak, the system having a first channel extending from proximate a lower end of the first deck towards the peak and a second channel extending from proximate a lower end of the second deck towards the peak. The system further includes a router positioned proximate the peak, the router enabling air flowing to the peak from the first channel to be selectively routed to one of a plurality of directions.

Abstract: A roofing article having a body, a first channel defined within an upper portion of said body having an inlet through which outside air can enter the first channel, and a second channel defined in a lower portion of said body. A sheet separates the second channel from the first channel. The second channel is operably connected to the first channel through an orifice in the sheet such that the outside air can enter the second channel through the orifice.

Abstract: Azeotropic compositions include a perfluorinated alkane or alkene and an organic solvent.

Abstract: An azeotropic composition includes a perfluorinated cycloaminoether and an organic solvent.

Abstract: An azeotropic composition includes a perfluorinated cycloaminoether and an organic solvent.

Abstract: An electrochemical fluorination process comprises passing by forced convection a liquid mixture comprising anhydrous hydrogen fluoride and fluorinatable organic compound, e.g., tripropyl amine, at a temperature and pressure at which a substantially continuous liquid phase is maintained, between the electrodes of a bipolar electrode stack. The bipolar electrode stack comprises a plurality of substantially parallel, spaced-apart electrodes made of an electrically-conductive material, e.g., nickel, which is essentially inert to anhydrous hydrogen fluoride and which, when used as an anode, is active for electrochemical fluorination, and the electrodes of the stack are arranged in either a series or a series-parallel electrical configuration. The bipolar electrode stack has an applied voltage difference which produces a direct current which can cause the production of fluorinated organic compound, e.g., perfluoro(tripropyl amine).