Abstract: A roofing board, such as a polyiso insulation board, includes first and second surfaces, where the first surface is lighter in color than the second surface. This allows the roofing installer to choose which of the surfaces to expose to the atmosphere, the lighter surface being cooler than the darker surface. The lighter surface may have a solar reflectance greater than the darker surface. A roofing membrane is then adhered or otherwise attached to the exposed surface.

Abstract: A roofing board, such as a polyiso insulation board, includes first and second surfaces, where the first surface is lighter in color than the second surface. This allows the roofing installer to choose which of the surfaces to expose to the atmosphere, the lighter surface being cooler than the darker surface. The lighter surface may have a solar reflectance greater than the darker surface. A roofing membrane is then adhered or otherwise attached to the exposed surface.

Abstract: A monitoring system for monitoring a test article includes a scanning system and a computer system. The test article may be positioned within a fluid tunnel. The scanning system may be configured to scan the test article and record positional data of at least one point on an article surface of the test article. The computer system is in communication with the scanning system for receiving the positional data and being operative to determine at least one of the following: a position of the test article, an attitude of the test article, and deformation of the article surface.

Abstract: A one piece pourable sealer pocket includes a flexible support strip bonded to a strectchable water impervious membrane strip. The membrane strip has an exterior surface which is not tacky and an interior surface which is tacky. A portion of the membrane strip extends above the collar and a portion extends below the collar. In application, the collar is fastened surrounding a projection in a roof and the lower portion of the membrane is stretched to form an annular flange around the collar bonded to the roof surface. The upper portion of the membrane strip bends over the collar to form a continuous upper water impervious barrier around the collar. This pourable sealer pocket is easy to construct and easy to apply in the field.

Abstract: Apparatus for grinding a helical cutting surface on a flat cutting blade. Prior art grinders are complex, difficult to operate and expensive to use. The present grinding machine comprises a stationary support (74), a grinding arbor (76), an adjustable cam plate (78), a grinder carriage assembly (80), a grinder assembly (82), cam follower (112), mounted on the grinder carriage assembly (80), and a grinding stone (128) mounted on the grinder carriage assembly (80). When the carriage and the grinding stone are reciprocated along the axis of rotation of the grinding arbor the cam follower (112) contacts the lower surface of the cam plate (78) whereby the grinding arbor is oscillated about its axis of rotation and a helical cutting surface is ground into the blade (34).