What is your favorite flat roofing system? and why?
What is your favorite flat roofing system?
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JWilliams
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yoders roofing
Hi ,I am new to this site,and just saw you are interested in other products. i am an IBO of the Conklin Company,which manufactures roofing systems for almost any flat roof. Check out my website www.yodersroofing.ezsitebuilderonline.com, fill out info and I will email more information. Thanks:yes::thumbup::no: p.s. if the link to my website does not work try typing it in yourself and it should work.Thanks
I agree, there probably isn't anyting better. But let's see it on a 300 square shopping center or 1,000 square warehouse
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.
I haven't installed SA TPO yet, but from what I understand about the product; I wouldn't install a SA tpo unless it was on new construction. From what I hear it goes so fast that the tear off crew couldn't tear off enough in a day to really experience any labor savings on the install. Last I checked the SA was nearly triple the price of the regular TPO, however that doesn't take into account the cost for the bonding adhesives.
My best guess is that the labor to install the SA tpo would be nearly the same as installing mechanically attached tpo. Again I haven't worked with SA yet so this is all speculation.
My best guess is that the labor to install the SA tpo would be nearly the same as installing mechanically attached tpo. Again I haven't worked with SA yet so this is all speculation.
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?
you had to see this to beleive it. miles of plastic conduit everywhere. wish i had pics to show u. 1st layer iso we cut to make level 2nd layer to make look level w/ roof line. we did 2nd job on metal deck mechanically attached tpo and had to cut into new roof cuz had screws in conduit. even tho we tried to mark where conduit was, but impossibe to not make mistake. so they went to pre cast concrete decks. hence the olybond. still was a pain in the ass. yes grumpy these were new construction. i supervised some subs for these jobs and they in in their many years of expereince had never seen anything like these roofs. no never installed rhino bond system. who is the manafacturer?
OMG Rhino Bond http://www.olyfast.com/product.aspx?catID=25&prodID=625
Not my style. Heating the mebrane from the top side to adhere the fastener on the bottom side... I want to see some long term real world results before I adopt a technology like that.
Not my style. Heating the mebrane from the top side to adhere the fastener on the bottom side... I want to see some long term real world results before I adopt a technology like that.
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
experiencewww.flexroofingsystems.com/documents/​rhinobond/Flex%20...
• Proven attachment
method with over
10 years and
1,000,000 square
feet installed
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.
No you'd take a big sheet like on a ballasted system and before you installed the membrane you'd install a bunch of special screws into the insulation in a grid pattern, then after you installed the membrane you'd put a cap over the special screws that would pinch the membrane between the top and the bottom.
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.
Installed a few of those button cap systems, It was a firestone system that we used.
Pain in the ass to repair a broken button.
When a button would break for whatever reason we would have to make a cut next to the button cap, remove old button base... install new button base and new cap and then patch the hole we cut to carry out the repair.
Late 80,s was the last time I recall installing one of those systems.
Pain in the ass to repair a broken button.
When a button would break for whatever reason we would have to make a cut next to the button cap, remove old button base... install new button base and new cap and then patch the hole we cut to carry out the repair.
Late 80,s was the last time I recall installing one of those systems.
I remember that system , It was called the Mars "mechanicly attatched roofing system" System . Made by Carlisle. The stoped it around the late eightys. There a few left in my area. they would fail around the button cap. Another interesting system was the plate bonded sytem, that was you would screw down a grid patten of "frizzbees" and glue only them to the sheet. It was very fast, made by Synenergy. Then Stafast took it over but did the plate with a PS "pressure sensitive" but that made it more expensive.
RooferJim
www.jbennetteroofing.com
RooferJim
www.jbennetteroofing.com
Mars
RooferJim
The Carlisle system you were referring to was called MARS NP (Mechanaily Attached Roofing System Non-Penetrating). As some of the other posts have described a special base plate was installed under the membrane. A white retainer piece snapped over the membrane onto base plat pinching the membrane, then a cover plate screwed over the retainer. I was a Tec Rep for Carlisle in the 80’s – I thought this was a marvelous bit if engineering, until we learned the retainers were not only pinching the membrane but also poking holes in it. Still it was an improvement on Carlisle’s original MARS – A batten bar set in a bed of Water Cut Off Mastic and fastened through the membrane – no cover strip over the bar.
I know of one MARS – NP that’s still in service. Has to be 25 years old and ponds about a 1” of water over 40% of the roof. The owner told me about a year ago it leaks once in while, but only when the roof is covered with deep snow and a thaw occurs.
RooferJim
The Carlisle system you were referring to was called MARS NP (Mechanaily Attached Roofing System Non-Penetrating). As some of the other posts have described a special base plate was installed under the membrane. A white retainer piece snapped over the membrane onto base plat pinching the membrane, then a cover plate screwed over the retainer. I was a Tec Rep for Carlisle in the 80’s – I thought this was a marvelous bit if engineering, until we learned the retainers were not only pinching the membrane but also poking holes in it. Still it was an improvement on Carlisle’s original MARS – A batten bar set in a bed of Water Cut Off Mastic and fastened through the membrane – no cover strip over the bar.
I know of one MARS – NP that’s still in service. Has to be 25 years old and ponds about a 1” of water over 40% of the roof. The owner told me about a year ago it leaks once in while, but only when the roof is covered with deep snow and a thaw occurs.
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