Does anyone know loose laid TPO?


#1

Hi, Currently, I read design-build specs, specs want to use ballast over TPO membrane.
I only know weld seam TPO and loose laid EPDM. I never heard about loose laid TPO.
Does anyone know? Thank you


#2

I’ve heard of doing it with pavers. Best bet on this one is to reach out to your manufacturers rep.


#3

It is done. A layer of Protective Mat is installed over the TPO before the ballast. Frankly, if you want a ballasted roof, use EPDM. You can use larger sheets, fewer seams, etc.


#4

thank you Donl, i have addition questions about TPO membrane, does waffle patio slab directly install on TPO or using protection board or XPS insulation under paver? Thank you


#5

I don’t understand what a waffle slab is…


#6

They may be talking about fully adhered system .witch is basically glued down.


#7

Its similar with concrete paver.


#8

Pavers should be installed over protection mat or, better, over XPS. Do not install directly to the TPO.