TPO Roof Replaces Leaking Inverted Roof-Membrane Assembly System. 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.
Deep vein thrombosis (DVT) is a medical condition that occurs when a blood clot forms in a deep vein. These clots usually develop in the lower leg, thigh, or pelvis, but they can also occur in the arm.
A DVT is a blood clot that forms in a deep leg vein. Veins are blood vessels that take blood towards the heart. Deep leg veins are the larger veins that go through the muscles of the calf and thighs. They are not the veins that you can see just below the skin, neither are they the same as varicose veins.