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What is your favorite flat roofing system?

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144K views 146 replies 58 participants last post by  mbtechnology  
#1 ·
What is your favorite flat roofing system? and why?
 
#67 · (Edited)
We Don't Do Many Commercial Jobs - But Roofed Residential

Flintlastic with Full Coverage Grace Ice & Water Shield?

Use of CertainTeed's Flintlastic SA NailBase in a self-adhering system permits complete mechanical attachment to nailable substrates, preserving the integrity of the substrate for future tear-offs and adding additional waterproofing performance capabilities to the overall system. Flintlastic SA NailBase also adds to the fire resistance of the roof system, enabling UL Listing of the roof system.

We use on flat shed dormers & porches, ect...

Outstanding Warranty Options

CertainTeed backs its commercial roofing systems with the confidence of three warranty choices!
 
#68 · (Edited)
Flintlastic is no good in the cold weather and not very good if you have a lot of flashing details. Its only advantage is it can be installed by shinglers for small stuff. Its basicly glorified roll roofing that is only intended to last 10 years max, although PolyGlass who invented the modified SA's has a whopping 15 year warranty.
Better to go with a nice one piece single ply.

RooferJim
www.jbennetteroofing.com
 
#71 ·
A Certainteed 3-ply flintlastic SA system is warranted for either 15 or 20 years. I forget off the top of my head because it was for sure 15 years on the 3-ply, but I heard rumor they upped it to 20 years in 2010.

I do agree it's better for small stuff. I also agree that single ply is my preferred membrane on typical larger roofs. I also agree it's not good in cold weather requiring at least 40 degrees farenheit or more. This means it can only be install 6-8 months out of the year around here.

It sucks on residential most single ply manufacturers don't want to get involved. I'd have set up an IB account long ago, but due to logistics we're just not a good match for their company. In other words, my other suppliers have cranes on their trucks, IB doesn't over here so for each job I'd have to rent a crane to get the materials on the roof.
 
#69 ·
Singly Ply - Rubber is the best for slow pitch we all know THAT!

The question is, when completing residential homes is the Single ply rubber roof installation an option for all roofing contractors?

As long as the budget is large enough we provide the fully adhered single ply 060 rubber roof application, as stated you cannot put the rubber down in the cold, so up in Maine we offer torch down, and Flintlastic as an option because you can use a torch to help activate the adhesive for the rolled roofing material. :thumbup:


Awesome.... Love The Roofing Convesations!
 
#70 ·
Massachusetts "Cape Cod area" is just as cold and windy as Maine and we install single ply ,EPDM rubber and PVC, IB Roof System's all year long. Of course there are tricks of the trade when working in any weather but why put a 10 year roofs with seams with is Timberline roof that should last at least 30 years ? IB Roof systems is the only one to offer the custumer a written lifetime residential warranty or a 25 year commercial warranty. They even have colored membrane. http://www.ibroof.com/IBinfo/res_types.html


RooferJim
www.jbennetteroofing.com
 
#72 ·
hey Grumpy, you should give IB a chance. They deliver to my shop or to the job and I have it all craned up with the ISO board. I have to buy that seperate. Bradco or Beacan or maybee ABC would have no problem with this typicly. another option on small jobs is to put the rolls of IB up with a power ladder.
 
#74 ·
Haha I am going to catch hell for this, but my fave flat roof system is JohnsMansville torch down.
 
#75 ·
There are a few old school roofers on here that like BUR roofing systems. I am also one of them, 4ply capsheet is standard but we install as many plies as needed cap it off with aggragate, SBS, Cool roof caps, ect. The key to this system is a great hot crew that works as a finely oiled machine From the Firstman down to the kettle man. We are the goto Co. when when it comes to BUR systems Around here everyone else does single ply. BUR to me is still the best system.
 
#84 ·
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:
 
#85 ·
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.
 
#87 ·
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.
 
#91 ·
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
 
#93 ·
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.
 
#95 · (Edited)
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.
 
#97 ·
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.
 
#98 ·
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
 
#99 ·
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.