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-   -   Anyone here have TPO roofing knowlage (http://www.diychatroom.com/f9/anyone-here-have-tpo-roofing-knowlage-7946/)

Keep Em Cool! 04-22-2007 10:23 AM

Anyone here have TPO roofing knowlage
 
Iím building a new house with a flat roof (Less than ĹĒ pf pitch) and am installing it my self. I never had much love for modified torch down and am leaning towards TPO. Is hot air the only seaming system for this? Some one had told me there is a peel and stick out there but I havenít been able to locate it. Now on the other hand if you got a reason for not using TPO Iíd like to here them. The rainy season is upon me and Iíve got to seal this girl up fast. The other problem I face is that I will not have all my penetration ready at the same time. Meaning I will have to puncher this several times be for I finish construction. Thanks in advance for any help rendered. Bob:thumbsup:

Ed the Roofer 04-22-2007 12:49 PM

Which brands of thermo-plastic roof membranes have you researched for this project?

Can you, as a non-certified applicator purchase that brand of material?

Have you ever done any hot-air roof membrane welding?

Do you own a $ 475.00 Liester hot air welding gun? What about variable speed screw guns with a clutch to disengage the torque? Not variable speed drills!

Answer those questions first, for a more precise commentary.

Ed

RooferJim 04-22-2007 01:06 PM

Genflex was the first to come out with TPO they were recently bought out by Firestone. I think I saw a demo of it at the roofing convention but my memory is slightly foggy. Heat welded seams and flashing details take some training.

RooferJim

AaronB 04-23-2007 07:06 AM

What benefits does TPO have over the others, esides cost? I have heard that it breaks down rather quickly.

parkerfairfield 04-28-2007 03:17 AM

Quote:

Originally Posted by Keep Em Cool! (Post 41904)
Iím building a new house with a flat roof (Less than ĹĒ pf pitch) and am installing it my self. I never had much love for modified torch down and am leaning towards TPO. Is hot air the only seaming system for this? Some one had told me there is a peel and stick out there but I havenít been able to locate it. Now on the other hand if you got a reason for not using TPO Iíd like to here them. The rainy season is upon me and Iíve got to seal this girl up fast. The other problem I face is that I will not have all my penetration ready at the same time. Meaning I will have to puncher this several times be for I finish construction. Thanks in advance for any help rendered. Bob:thumbsup:

Some thoughts.

A) the only reason i'll type so much is your first few data points thrown out there; you know the pitch, you're building the house.



B) I know a TON about single ply... I ran quite a few roofing projects ... and did some nifty things with it. One of which was getting the company certifed as installers for:
  • Certainteed Low Slope Silver Star
  • Genflex Authorized
  • IB Authorized
  • US BRAI Platinum Installer
So ... were we related, and were I to think you had mad skills in the construction department... I'd ask:
1) are you planning on keeping the house more than 9 yrs?
IF NO... then I'd lean TPO
IF YES I'd force you to promise to buy PVC before I explained more.

REASON: Ask any roofer worth his salt what he thinks of 'new products' and using them on purpose. (Cemwood anyone?)

PVC has had the same formula for 29+ years ... that's good.
TPO was first released 13yrs ago. 8-9 yrs ago, due to formulation OOOOPS it was completely reformulated. Now 'it's good' just ask the manufacturers.

TPO is cheaper. TPO has a wicking seam ... candles wick oil.... TPO wicks water if you cut ANY of the TPO... therefore you need to put sealant on every area. Not easy when you can't see the frigging roof clearly cuz it's so reflective.

You'll be able to call around - try ABC Roofing Supply as they are everywhere - and you'll be able to buy it.

Get the thickest you can if you'll be the a long time.
If you live where it's cold Get insulation ... as singleply reflectivity (think mirror) is around 80% ... BUT THE IMPORTANT THING is its emissivity (think a dorito bag with silver lining, silver lining on the outside next to your grandmas silver knife ... the plastic silver bag is barely warmer than the air. the knife is hot). The emissivity of a asphalt roof is, i think, around 25% (in other words, it SHEDS about 25% of the heat that hits it, retaining the rest). The PVC/TPO sheds about 75% ... so in the ALLL SEASONS your attic will be even colder.

To do the roof with all SA (self adhered) is insane. PVC is the BEST roof on the market... www.IBroof.com has 99% of all roofs installed 28 yrs ago STILL fine, and going strong. and that's their THINNER material.

But to do it SA is crazy. If you're cheap, on a budget, or just 'have to' then go hang outside a roofing shop and find the foreman welder. And have no warranty, and have your ceiling fall in and cost you more than paying a good qualified installer in the first place (not to mention the inconvenience cost).

If you still have to do it... <shrug> then find the 6" wide tape that is made by Genflex... and after you glue down the whole roof, use the tape over every seam just to be less insane.


If you're going to be there awhile, then 100% buy an IB roof www.ibroof.com - as they offer a limited LIFETIME WARRANTY on their material.... and the stuff is the best.... you can TELL the best by looking at the manufacturers DETAILS.... cuz if you've read anything... your roof won't leak in the middle of the field... it'll leak where the water changes direction (a penetration, etc)... IBs are the best.

Keep Em Cool! 04-29-2007 11:05 AM

Ed. First off let me address your concerns. Lets start with why I want to do this my self. The people that showed up to give me estimates I wouldnít trust to scrap paint chips. You talk about creeps. I have been a heavy mechanical contractor for thirty-five years. I donít know what it is that seams to draw societyís misfits (drunks and drug addicts) to two trades. Namely roofing and sheet metal. We have a fully automated sheet metal facility with one million pound a year capability. So please donít think that Iím saying this off the hip. I know and itís not just in my neck of the woods. If there is any one that would like to see the above scenario changed itís me. I get tired of pulling hairs out of my employeeís heads. Parker Fairfield. Iím going to assume that Parker is your first name and if it is we have something in common. Thatís my sonís name and very rare indeed. Parker I canít thank you enough for showing me a path though the forest. PVC it will be and I will contact IB roofing systems on Monday for a recommendation to a factory-authorized contractor. Thank you gentlemen for your input. Bob:thumbup:

parkerfairfield 04-30-2007 12:07 AM

Quote:

Originally Posted by Keep Em Cool! (Post 42735)
Ed. First off let me address your concerns. Lets start with why I want to do this my self. The people that showed up to give me estimates I wouldn’t trust to scrap paint chips. You talk about creeps. I have been a heavy mechanical contractor for thirty-five years. I don’t know what it is that seams to draw society’s misfits (drunks and drug addicts) to two trades. Namely roofing and sheet metal. We have a fully automated sheet metal facility with one million pound a year capability. So please don’t think that I’m saying this off the hip. I know and it’s not just in my neck of the woods. If there is any one that would like to see the above scenario changed it’s me. I get tired of pulling hairs out of my employee’s heads. Parker Fairfield. I’m going to assume that Parker is your first name and if it is we have something in common. That’s my son’s name and very rare indeed. Parker I can’t thank you enough for showing me a path though the forest. PVC it will be and I will contact IB roofing systems on Monday for a recommendation to a factory-authorized contractor. Thank you gentlemen for your input. Bob:thumbup:

Bob, yeah, Parker is me.

I'd be happy to help you out if you run into any issues ...




Peace.

ncgrogan 05-01-2007 02:30 PM

As far as I'm concerned only two companies make thermoplastic roofs.......Fibertite and Sarnafil. If you want a third I would say Carlisle. Same reasons above poster gave for not using TPO...anyone remember what happened with early PVC roofs (ie. Trocal)

parkerfairfield 05-01-2007 03:02 PM

Quote:

Originally Posted by ncgrogan (Post 43008)
As far as I'm concerned only two companies make thermoplastic roofs.......Fibertite and Sarnafil. If you want a third I would say Carlisle. Same reasons above poster gave for not using TPO...anyone remember what happened with early PVC roofs (ie. Trocal)

Dunno what happened since Firestone bought Genflex ... but prior to the buyout the only 4 roofs that Walmart would spec were Genflex, Sarnafil, Carlisle ... and I forgot. That was one of the reasons we went down the Genflex road.

WynsWrld98 08-09-2007 09:53 AM

IB Limited Lifetime Warranty but contract says 15-25 years depending on thickness?
 
I'm intrigued by the limited lifetime residential warranty of IB roofing but started reading the PDF contract and it states 15-25 year warranty depending on thickness of IB used??!

Just had a contractor out to discuss my failed old flat hot mop roof, approximately 18' x 39', he's a TPO certified installer and swears by it. But reading this thread it sounds like it's unproven due to its age and the fact one formulation of it was recalled adds suspicion and since IB is proven and I'm not hearing anything negative about it, any reason not to go with IB?

The contractor stated he'd rip off the existing hot mop completely and re-grade it then put the TPO over it. The hot mop isn't pitched properly to run water to the drains at the far ends so it was music to my ears to hear him talk about tearing off existing material and repitching the roof. He said the TPO has 30 year warranty but I don't have paperwork on it yet, he's going to write up the proposal which will be for $9000.

From what I described would an IB system be in a similar price range for my 18' x 39' roof including repitching roof?

I went to IB's site and filled out info to have IB certified contractors contact me but in the meantime I'm curious for opinions on this $9000 estimate, thanks.

the roofing god 08-18-2007 02:49 AM

you`ll be glad you went w/ IB roof systems:thumbup:

Ed the Roofer 08-18-2007 02:58 AM

Duro-Last has been around "Installed On Roofs" longer than IB Roof Systems, but with that said, the IB membrane is a high quality one also.

Unless Duro-Last has changed their warranty, the residential warranty was for material cost only.

Duro-Last also has 100 % warranty coverage for ponding water on the roof membrane.

The quality of the installer and his seam welding and his flashing details will determine which roof system will out perform the other, in my opinion.

Ed

the roofing god 08-18-2007 03:44 AM

my sources say IB is great while durolast is very thin,and harder to patch into/weld as it gets older

WynsWrld98 08-18-2007 10:48 AM

I went with IB from a certified installer, thanks for the advice!

bobbytheroofer 06-17-2009 02:32 PM

To respond I would not install tpo. We haVE A SAYING IN THE ROOFING FIELD.....fREINDS DO NOT SELL FREINDS TPO....use a product like fibertite....its easier to weld and last up to 100% longer...the current formulation for tpo has only been on the market for 7-8 years and is unproven. with all of its history in the feild I would suggest that you stay away


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