TPO Roof Replaces Leaking Inverted Roof-Membrane Assembly System. By Dan Hounsell, Editor July 2010 - Roofing Article Use Policy. The problematic roof was an inverted roof-membrane assembly (IRMA), which consisted of a built-up membrane installed over a structural concrete slab and topped by insulation.
DVI vs. VGA. VGA and DVI connectors are used to transmit video from a source (like a computer or tablet) to a display device (like a monitor, TV or projector). The main difference between VGA and DVI is in the way the video signals travel. VGA connectors and cables carry analog signals while DVI can carry both analog and digital.
It is also backward compatible with DVI (Digital Video Interface). High-end graphics cards featuring a DVI port can connect to the interface via a DVI/HDMIÂ® cable. This is simply a cable with a DVI connector on one end and a HDMIÂ® connector on the other. As a rule, cables should not run longer than 15 feet (5 meters), or degradation of the signal could occur. Most modern television sets are sold with at least one HDMIÂ® interface.