Rocks on TPO

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August 28, 2023 at 1:21 p.m.

alextolle

Chris in Madison, GA asked:

Can you put rocks on a TPO roof? And if so why would you?

August 28, 2023 at 1:22 p.m.

alextolle

This what our roofing expert Brenna from Innovative Roofing Group had to say in response to your question:

Technically yes, you can use rocks, or ballasts, on a TPO roof in conjunction with a slip sheet, but it's more likely that you'll see them previously installed than added to a roof afterwards. They're typically used as a cost saving measure, or a way to provide protection to the existing roof system. The ballasts weigh down the membrane which means fewer fasteners and less adhesive is needed for support.

August 28, 2023 at 1:23 p.m.

alextolle

This what our roofing expert JD from Bone Dry Roofing Company had to say in response to your question:

Yes, you can put rocks on a TPO Roof.

Personally, I had a special circumstance with a job where a radio tower was present near the roof system. Rock was installed on the TPO Roof to safeguard from potential icicles that formed during the winter months. These icicles could have fallen and damaged the roof system without some sort of protection. Mainly rocks can be used on a TPO Roof to safeguard from potential damaging weather.

JD Gustavel

August 28, 2023 at 1:23 p.m.

alextolle

This what our roofing expert April from Pittman Waller Roofing Company had to say in response to your question:

You can put rocks on a TPO roof to act as a ballast and provide UV protection; however, it is rare and not recommended by Pittman Waller Roofing Company, LLC.

August 29, 2023 at 11:25 a.m.

alextolle
This what our roofing expert Jordan from Elite Exteriors had to say in response to your question:

Gravel is not recommended on TPO roofs. Tpo roofs typically aren’t designed to hold the extra weight and adding gravel adds no benefit. 

 
Gravel is typically used for two primary reasons, one to protect underlying roofing materials on built up roofs and two to secure/weigh down roofing material on single ply flat roofs. 
 
This last part isn’t fact, but in my experience TPO needs to be clear and open. It is recommended to clean off debris and dirt to prevent puddling and premature deterioration near seams. 
September 17, 2023 at 11:26 p.m.

jacksjaney123

plz put the complete detail


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