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What is your favorite flat roofing system?

144K views 146 replies 58 participants last post by  mbtechnology  
my favorite to install is tpo,and pvc. they're clean and easy to install. gaf freedom tpo is my fave. no glue, but i'm skeptical of it's longevity. of course coal tar pitch is the best, but as said cost, and lack of good installers has hurt this proven product. ive seen pitch roofs on chicago public schools that were 80+ years old and still in descent shape. now thats getting your moneys worth.:thumbup:

You like the SA tpo's eh? Ive never installed them I bet they are pretty fast. Got to be damn expensive though. Ive used alot of GAF tpo and it seems ok, I dont care for thier glue though I think versico's is better.
 
from an installers standpoint i like the s/a tpo, but personally would'nt put it on my house or busniess if i had one. i'd use something with a longer/ proven track record. they do install very fast though, but one thing that kinda slowed us was we were doing 2 layer iso w/ olybond. which can take awhile to rise if not in direct sunlight. plus crickets and saddles. did 1000's of sq. of these cookie cutter jobs for a national fitness center chain. the other PITA was they run all conduit for the building under the roof systems so 1st layer iso had alot of cuts. dont know the price difference between s/a and smooth back, but probably could make up for it in labor costs. i agree verisco glue is nice a little thinner, easier to spread.

They did what with the conduit! not metal deck then eh? We did a big warehouse that they ran the conduits on top also, except it was straight runs in the metal deck flues. This was a hot job and we made maps so if we ever reroof it we know where they are at. saws and conduits dont mix, you dont want to know what it costs when you shut down a production line down a day or so. :no: I would guess it might be close but we can spead glue down pretty fast. It would be interesting to compair the two on a cost basis. Ever installed a Rhino Bond system?
 
I couldnt find it on the OMG site but check this out. Ten years is some what young, but it really is a nice way to go. less screws and no glue, we can install these for about the same price as a F/A EPDM the equipment is kinda expensive.

www.flexroofingsystems.com/documents/​rhinobond/Flex%20...

• Proven attachment
method with over
10 years and
1,000,000 square
feet installed
experience
 
Are you talking about the one where you would cut a 12"x12" piece of EPDM and screw that down to the deck. Then when you layed out your sheet you would use the old seam adhesive to adhere it? Ive only seen one of these roofs. To the epdm style was a good idea untill they were a few years old. I just hate the seam ahesive though. The rhino bond is pretty neat, and normally we dont stray too far from what we know. Its worked out pretty good so far and its just another system to sell. We have installed probably a dozen or so in the last year or two. Aslong as you calibrate the machine you cant seperate the plates from the TPO.
 
Oh yeah that system I forgot who marketed them. We use to do repairs on a mall that had alot of that style of roofs. That IMO was one of the dumbest ideas. most of there problems were with the cap locks tearing the epdm. PITA to find leaks on. If they were wet we would just start dumping bentonite on each button. Then go back and patch them later.
 
Very close to the style I was talking about. Except instead of the little button things these had a plastic slider then another plastic lock for that. I will post some pictures of it monday when I get to the office. I have one of the attaching clips in the office.
 
Your company has been around since 1994 and you dont know what a good fall protection system would be? I guess ill bite and ask what kind of roofing you do? Depends on type of roofing and building styles, I would guess the a harness and lanyard with a ridge anchor, would be just fine.
 
Sigh, I hate when I preview post then move on instead of submit!

I beilve the roofs were installed in the early to mid 90's. These building are the only ones ive seen like it and they have 1000's of squares of it. I had heard that it was all out of towners that did the work and im sure thats not far off base as there is only a few contractors in our area that could manage a job of that size. I would guess of 90% of them need to be replaced as most have pulled from the walls and other leaks caused by the locks. As you can guess leaks can be a PITA with these. They seem to be worse in the winter and again the roofs have little to no slope on them.

I thought it was funny that after looking up single source the 2nd link was that to a law suit. Yes generally the lawyers are the ones who fair far better then any of the partys involved.

I will make sure to hit Submit Reply so I dont have to type this over again! :)