Single guys problems flirtbörse Jena
If you are a building owner, facility manager or even a homeowner with a flat roof that leaks, and you are interested in or got a bid from a contractor to install a new flat roofing system called TPO (Thermoplastic olefin), this is a must-read article for you, because you will not find this information anywhere else.: TPO is a hot-air welded thermoplastic single-ply roofing membrane produced by numerous manufacturers.WSRCA’s test roofs in Las Vegas, NV, Anchorage, AK, San Antonio, TX, and Seattle, WA demonstrate the product service life in diverse climates throughout the western United States.
The problem is that for some reason they pulled off 2007, there is still no 2008 edition and only a 2 year old report from 2006 is available.
But here is the “rumor” from trusted sources: TPO roofs in the above study lose minimum of 1 mil of thickness per year and some TPOs lose as much as two mil per year (in 10 years that will be 20 mil – imagine that on a 45 mil membrane).
In it’s fairly short life (about 15-16 years) TPO went through at least 2 generations.
1st generation of TPO roofs began to fail in the late 1990’s and early 2000’s.
The average top ply thickness is 15 mil – some are 12.