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PVC verses TPO

 
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Old 09-19-2017, 12:43 PM   #1
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PVC verses TPO


Hello Gentleman. I'm a facilities coordinator with a company in Rocklin Ca were it gets extremely hot. I am in the process of comparing PVC to TPO commercial roofing materials. I've been through the pros and cons info, but I'm interested in the actual experience many of you have had with each material. I've been told that TPO is prone to yellowing. have any of you experienced this and have they rectified this problem? Also, which material's seams tend to hold up better in extreme heat situations? Any assistance on this would be greatly appreciated. Thanks

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Old 04-17-2019, 04:46 PM   #2
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Re: PVC verses TPO


TPO has had some heat/ light issues in the past, mainly from magnified light rays off of windows.
I prefer PVC over TPO because the product has a longer track record and we know its negatives. Id choose EPDM over both but where I live we have more cold days than hot.


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Old 05-03-2019, 09:35 AM   #3
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Re: PVC verses TPO


My two cents:

In high heat PVC will out gas into the attic space and tenants may smell it. That's why there are out gassing vents on PVC roofs. PVC is also a known carcinogen. I would not suggest PVC in high heat environments just for this reason.
We've done installs in Rocklin over the years and go with TPO or a fluid applied system for this reason, usually fluid. If the install is done properly seams should be fine with PVC or TPO.
I hope this is helpful.
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