The arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body. Each artery is a muscular tube lined by smooth tissue and has three layers:1  The intima, the inner layer lined by a smooth tissue called endothelium.ll rights reserved. The arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body. Each artery is a muscular tube lined by smooth tissue and has three layers: 1  The intima, the inner layer lined by a smooth tissue called endothelium.
How much does an ASCBP steel roof weigh? Metal Roofing in general is a very strong, yet lightweight material compared to other roofing products. The 26 gauge metal roofing products weigh between 0.90 â 1.00 lbs.
* Accounts for 1/2 of truss weight 1.9 Rock Wool, 1 .2 INSULATION Glass Wool, 1 .3 Alpol .1 2x4 Bottom Chord* .7 2x6 Bottom Chord* 1.1 2x8 Bottom Chord* 1.5 2x10 Bottom Chord* 1.9 2x12 Bottom Chord* 2.2 2x4 Webs and Plates** .8 2x6 Webs and Plates** 1.3 Roof Truss or Ceiling joists at 24â O.C