tag:blogger.com,1999:blog-2803589003320488705.post7376664328870876040..comments2023-11-02T02:06:34.174-07:00Comments on White Roofing Systems: Regular Roofing Maintenance - Cost CalculationsAnonymoushttp://www.blogger.com/profile/13176114764998224338noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-2803589003320488705.post-18537272049141710932012-11-22T10:21:05.563-08:002012-11-22T10:21:05.563-08:00Hi there! I will be looking forward to visit your ...Hi there! I will be looking forward to visit your page again and for your other posts as well. Thank you for sharing your thoughts about roofing in your area. I am glad to stop by your site and know more about roofing. Keep it up! This is a good read.<br />Stone lintels have been used to support roofs since prehistoric times, but cannot bridge large distances. The stone arch came into extensive use in the ancient Roman period and in variant forms could be used to span spaces up to 140 feet (43 m) across. The stone arch or vault, with or without ribs, dominated the roof structures of major architectural works for about 2,000 years, only giving way to iron beams with the Industrial Revolution and the designing of such buildings as Paxton's Crystal Palace, completed 1851.<br />Natural Slate is fireproof , comes in many different colors, durable, longer lifespan than rubber and asphalt. <br /><br /><a href="http://www.budget-exteriors.com/roofing-salem-nh/" rel="nofollow">Roofing Salem NH</a>Anonymoushttps://www.blogger.com/profile/15555504425067455389noreply@blogger.com