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Old 05-23-2011, 05:44 PM   #16
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Fibertite vs. EPDM


Learn about your Flat Roofing Options

I really really prefer the heat welded seams you get with PVC. I don't use fibertite but use Flex, marketed through versico as Versiflex. It's a good product. Either membrane will be xcellent however a roof will often first fail from the seams or penetrations. Adhesives with epdm seem to fail before the heat welding from pvc.

Understand that a roof is more than just the membrane. it is an assembly and a process. Is the old roof being torn off. How thick is the new insulation to be installed? Is it going to be tapered? How thick is the new membrane? What types of terminations or flashings are being installed? and on and on. It's hard to compare the two solely on price without looking at all the details involved in the entire project.

cost is also relative to the project as a whole. Now we need to look at more factors than just the assembly, we need to look at staging, access to the job site, height, material and debris storage and handling etc... Have I done jobs for $20 a foot, yet but it's on the high end of the scale and usually a very complex job.


I disagree completely about allowing the contractor to spec the job. I spec 99% of my work and I usually give a much much more detailed specification, for free, than the average architect, engineer or roof consultant. I don't do what's right for the customer, I do what's right for the building. Sure I give the customer their options but I refuse to let them make a bad decision just to save a buck. Does it cost me work? Sure sometimes it does. I take ALOT of offense to your comment Rodeo, ALOT of offense. I understand what you are saying, there are contractors out there who will purposely cut corners, but to say all are like that is just plain WRONG!

Durol.ast is kind of a joke in my area. Not saying the product is bad, but I have seen some of the jobs and the inspector must have forgotten his ladders those days because there is no way some of the chit I have seen from durolast contractors would pass. KJ as a certified installer of Genflex roofing products what you are talking about is No Dollar Limit warranty that nearly every commercialr oofing manufacturer will issue to their certified installers for an added cost. As for the durolast warranty and what it covers you can find alot of threads in a lot of forums from people sayign that Durolast doesn't often honor their warrantys. I am not for or against this product, just repeating what I have heard.

1985, IB is the only single ply manufacturer that warrants residential, that I am aware of. there may be more, I just don't know. Even genflex wants a surcharge for condominiums.

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The information found in this post is not to be considered legal advice. All information should be considered relative, not specific. Never attempt any repairs you are not comfortable with. Always maintain safety! The author of this post takes no responsibility for any losses that occur. Use at your own risk.
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Old 05-24-2011, 01:04 PM   #17
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Fibertite vs. EPDM


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Originally Posted by Kj4x10n View Post
Now as far as I have read and been told the warranty covers contents inside the building as well. The warranty falls on the installer for the first two years then after that it becomes Duro-Last's. As for residential there is no warranty excluding the material warranty of 15 years. The commercial warranty comes in either a 15 or 20 (must be 50 mil + installed).

As for installation is concerned I totally agree it is all about craftsmanship, but I have come across all types/materials of roofs that were put on with the shottiest craftsmanship. It all boils down to pride. I am actually going to be getting a little more experience with Sarnafil so I will start a new thread after a few weeks of working with it to give my opinion on the differences between the two. Also going to be installing a few Rhino Bond roofs which as I was told were created to compete with Duro-Last, so I will also be giving an opinion on that. If you are Interested in seeing a Duro-Last warrenty let me know I'll see about getting you a copy of both the 15 and 20 yr.
I guess ive never seen a manufacture cover inside contents. Usally thats the contrators insurance, thats why the boss gets so pissed when it leaks . Yes craftmanship or lack there of is key.

We've bought in to the rhino bond idea last year and have done a handful or two of the roofs. very quick seems to work real good. Only problem I have notice and its not really a problem its the way it looks, hard to get it to laydown nice and flat like a F/A system. No performance problems unless you get a big wrinkle by a drain (if you do thats your fault learn how to lay out sheets ). If your planing on doing bigger jobs with rhino bond buy two machines and a extra set or two of the magnits/heatsinks, will help with production.
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Old 05-24-2011, 08:05 PM   #18
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Fibertite vs. EPDM


Sorry to jump in mid way thru your discussion, but I'm new to the flat roof ownership, and I've got an attached garage with a flat roof that needs replacing.
All I know about these roofs is from this thread and what the contractors have told me, which helps alot.
What I'm not sure about now is if the EPDM is the right one to go with or this "modified bitumen membrane" they suggested. Is that the kind you guys are talking about here?
One contractor can actually do a 60g EPDM with vapour barrier, bonded to 1/2" hi density fibre board, and 10yr warranty for $1000 less than the other. And I have no reason to mistrust either of them. I'm just not sure which is the better type for a 1 car garage, with moderate snow from Dec-March. It's not a heated garage either.

Any tips would be great. Thanks.
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Old 05-25-2011, 08:26 AM   #19
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Fibertite vs. EPDM


Start in this thread... roofing material suggestions - flat commercial roof
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Old 11-09-2012, 04:53 AM   #20
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Fibertite vs. EPDM


if seaming is your problem for epdm then sir you can give a cover of cement mortar na over the epdm membrane?

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