New Roof - TPO vs EPDM vs PVC
Hi Everyone, I had to remove my old membrane and plywood due to unknown leaks after the hurricanes last year. I'm am now in the process of figuring which membrane I want. There is a lot of informa...
Forum Discussion
Gdetrailer wrote:
If you REALLY want the "longest lasting", skip the soft kids stuff "membranes" and go all in on a once piece ALUMINUM roof.. Most likely it will out live you.
I can't argue ! Aluminum is great, but probably not DIY. The problem with all "rolled" roofing is penetration. Some items have to exit the roof and that is where the problems usually occur. In general, I think TPO is the second best option behind aluminum, but it depends on what grade TPO you use !
First, I doubt that Dicor actually manufactures their own TPO rooking. They just don't have the volume of sales to justify the facility to make it. Second, TPO usually comes in several different grades/thicknesses, 45 mil, 60 mil and 80 mil. You definitely want want 60 or 80 mil. I could NOT find the spec on the Dicor TPO thickness.
TPO does take some special tools to "weld" the seams (no lap sealant or tape required). You should watch some videos from RV Roof Install. Building "curbs" for roof penetrations and then use pre-formed pieces of TPO to weld to the rest of roof seems to be the secret.
