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.
Symptoms of a DVT. When a blood clot forms, it can either partially or totally block the flow of blood in the vein. Smaller blood clots that partially block blood flow may cause only mild symptoms or none at all. Larger blood clots that block blood flow usually cause: 1  leg swelling.