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.
Upgrade to DVI while still getting the most from your analog devices with high-quality DVI-A cables. Using the popular DVI connector but compliant with analog signals like VGA, these DVI cables are the first step in upgrading for the DVI age. Please don't try to use these on a DVI-D device, though.They are analog only, and will not work with a digital signal.sing the popular DVI connector but compliant with analog signals like VGA, these DVI cables are the first step in upgrading for the DVI age. Please don't try to use these on a DVI-D device, though. They are analog only, and will not work with a digital signal.