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Old 07-24-2009, 02:29 PM   #16
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Anyone here have TPO roofing knowlage


Sorry if I'm not using all the correct terms here

We are getting ready to install TPO on our flat roof fixer in the desert of So Cal and will purchasing it in a couple of days from roofing supply co.

I had a contractor lined up that was going to do Dura Last PVC but my husband said NO he wants to use TPO and do the job himself.

The brand of TPO he will be using Mulehide. Has anyone here used that brand? Also using poly iso underneath. He said no glue. Hot air the seams.

I'm scared to death we are going to have leaks. We have never done this type of roofing and he says he can do this himself and it will be easy I'm worried about the seams. If the seams are not right can they be redone?

Am I worrying for nothing about him doing this huge project by himself with no prior experience we have aprox 2500 sq ft

~summergirl

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Old 07-24-2009, 04:17 PM   #17
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Anyone here have TPO roofing knowlage


You are not going to be happy with the results.

1st off, does he own a hot air welding gun and I don't mean a wallpaper glue heat gun. The Leisters cost around $500.00 dollars each and it takes a certain talent and technique to be able to weld the seams without either under or over welding them.

The seams are pretty easy to repair, unless they completely pull apart due to cold welds, which would mean water would rush in and destroy everything underneath.

MuleHide is the Private Label Brand that ABC Supply sells, by the way.

Ed
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Old 07-24-2009, 07:24 PM   #18
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Anyone here have TPO roofing knowlage


Quote:
Originally Posted by Ed the Roofer View Post
You are not going to be happy with the results.

1st off, does he own a hot air welding gun and I don't mean a wallpaper glue heat gun. The Leisters cost around $500.00 dollars each and it takes a certain talent and technique to be able to weld the seams without either under or over welding them.

The seams are pretty easy to repair, unless they completely pull apart due to cold welds, which would mean water would rush in and destroy everything underneath.

MuleHide is the Private Label Brand that ABC Supply sells, by the way.

Ed
Thanks Ed .. Husband Tim has a cheap hot air gun I think new it's 99 bucks. He said this gun goes up to 1100 degrees. I'm really worried about the seams. He said he talked to a MuleHide rep and rep said should not be a problem just takes some practice ... but we will be practicing on our house

If seams do pull apart because of an under weld or other problem over weld can they be fixed?

Is it easy to overheat and ruin a seam?

In your opinion is MuleHide a good product? He is planning TPO mechanically attached. We have an ABC supply store about 30 miles away

We have been arguing about this all week... I was hoping to relieve my worries a bit sorry for all the questions.

Thanks! ~summergirl
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Old 07-24-2009, 07:50 PM   #19
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I should have added info about the hot air gun Freud HG100
Tim plans to use for the seams


Product Details


* Binding: Tools & Hardware

* EAN: 0008925160038

* Features: Perfect replacement for Freud EB100 edge banding system, Temperature range of 212 to 1100 degrees, IC control circuit, Covered by

* Manufacturer: Freud

* Product Group: Home Improvement
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Old 07-24-2009, 11:10 PM   #20
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The nozzle is not correct for seam welding. I have never tried one of those, but I know some cheap roofers who have and they continually had to replace them. But, with the correct nozzle would it be good enough for just one job? I don't know. Maybe.

Seams are easy to patch for me, but that is not something that I could say for someone without my experience. Guys that I trained always got their first days worth of seams done wrong, either by over-heating and charring the membrane or under welding and getting false welds. I could go back and pull their seams apart 10 minutes after they thought it was done. I just keep on having them do it over and over again and keep pointing out the faults.

If he is talented and patient, it could be done, but without someone with experience pointing out the defects, he will not know what is right and what is wrong, will he.....?





This is the type of welder that he needs.



Which uses one of these tips.


LST-30A1-PS-30A120MM HOT AIR WELDING NOZZLE 20MM WIDE x 2MM ANGLED HOT AIR NOZZLE, STAINLESS STEEL. TYPE 107.123, FITS TRIAC, BAK RION, SIEVERT TH1650 AND MOST OTHER HOT AIR WELDERS.

And he needs one of these.

SILICONE ROLLER 1-5/16 X 1-3/4 INCH MR05020




Then he will need either a tack-clay screw driver like this.

Stanley Tack Claw/puller

Overall Rating:

This product has not yet been reviewed.
Subscribe to reviews on this product




Or one of these cotter pin pullers to inspect the seams.


Cotter Pin Puller

Part # 64 Price$9.50





TPO isthe one membrane out that is gaining a lot of popularity, but has not been time tested in the field long enough under the current chemical formulation.

Others may disagree, but from feedback from guys I trust, they expect just over a 10 year life cycle from TPO.



Ed
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Old 07-25-2009, 01:46 AM   #21
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Ed thanks for all your help and for posting the tools he needs

"without someone with experience pointing out the defects, he will not know what is right and what is wrong, will he.....?"
I agree, wish I knew someone that could do the seam welding

I think he is going to go for it. I would still like to hire a licensed roofer.

I'll post some pictures once Tim gets started. Sometimes we can get big rain storms this time of year (monsoon season) hope he is done before then.

I know from doing pool liners there are all sorts of tricks you learn over time. We would have wasted expensive liners if we were not trained on how to install. IMO installing a membrane roof is going to be a lot more difficult!

Thanks again! ~summergirl
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Old 07-25-2009, 03:07 AM   #22
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Quote:
Originally Posted by summergirl View Post

I know from doing pool liners there are all sorts of tricks you learn over time.

We would have wasted expensive liners if we were not trained on how to install. IMO installing a membrane roof is going to be a lot more difficult!

Thanks again! ~summergirl
You didn't mention that he had experience welding vinyl pool liners before.

He just "might" be able to do a passable job then.

Ed
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Old 07-25-2009, 11:30 AM   #23
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Just a side thought, you may want to contact your Homeowners Insurance Agent to see if you are covered with such a technical installation by a non-professional. Not to say he couldn't do a good job, just would you be covered if you filed a major water damage claim? Be safe, G
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Old 07-25-2009, 11:38 AM   #24
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Quote:
Originally Posted by Ed the Roofer View Post
You didn't mention that he had experience welding vinyl pool liners before.

He just "might" be able to do a passable job then.

Ed
We haven't done pool liners for a few years and we were younger and in better shape then also no welding on the liners. We installed above ground pools and did replacement liner jobs. The seams were done at the factory. Any small patch jobs just required glue and patch.

I've learned from past experience just watching a video or reading about something does not mean you can do a job properly. I still feel at the very least we should have help with the seams from an experienced roofer.

Got a quote back yesterday in email for materials and prices are more from roofing supply than what they quoted over the phone

I had been leaning towards PVC... had read a lot of positive things about it but Tim is set on doing this himself and TPO is the only roofing material he has been able to find locally.

~summergirl
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Old 07-25-2009, 06:40 PM   #25
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Quote:
Originally Posted by GBAR in WA View Post
Just a side thought, you may want to contact your Homeowners Insurance Agent to see if you are covered with such a technical installation by a non-professional. Not to say he couldn't do a good job, just would you be covered if you filed a major water damage claim? Be safe, G

Good point! Didn't think of that

~summergirl
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Old 02-04-2011, 07:02 PM   #26
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Wow lots of people bashing TPO, I also see alot of bashing on EPDM. PVC is nice I will agree with that, but you better open your wallet! As for duralast I wouldnt put it on my dog's house. I dont why but I have seen alot of D/L roofs shatter from hail strikes. Kind of neet looking at fail D/L membrane under a light. Also put 60 mil versico TPO in a deep freeze and hit it with a ballpeen hammer. No breaks there. Wonder what it will do in 5 years. Hope the samples do not get lost by then. Genflex has a TPO seam tape, I have never installed it and will not ever install it I would say that welding if done correctly will be 1000 x's better. Also you will have a hard time with any details, corners and the like. I guess you could tape the seams and then 6" cover tape over it. still not as good as a weld. You could always make friends with someone that can weld PVC and TPO, but beware of people who say they can. Its fairly easy to screw up. I could go on and on but Im not going to if you have any questions feel free to ask.
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Old 02-04-2011, 08:51 PM   #27
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Summergirl, It sounds like you should do everything you can to stop your husband on his current course of action until he has done a lot of reading and gained a lot more education on the product he wants to use.

Some of these guys on here have spent years in their trade acquiring knowledge and experience as they go. They are not just getting in on the ground floor of the lates DIY roofing craze. They have the knowledge base to compare these new products to the tried and true products they have been using for years.

Think about going to the dentist for example. Your husband wouldn't try to drill his own teeth would he? There are DIYable tasks and there are just some things that should be left to the professionals.
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Old 02-04-2011, 09:05 PM   #28
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She hasn't posted here since 7-25-09, I hope it didn't leak with all the bad weather....

Gary
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Old 02-05-2011, 09:26 AM   #29
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Wow sorry for bumping an old post, some other guys posted this thread on CT and was ranting and raving about how this person was, guess I got cought up in the moment!
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Old 03-29-2011, 10:11 AM   #30
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I take offense to your statement about being a drunk and a drug addict. I am a roofing contractor. I have been roofing for 13 years. I am neither a drunk nor a drug addict. I consider myself to be a professional who chooses to work within the roofing industry.

Are there some bad roofers? Absolutely, but there are many good roofers as well. Just like there are many bad customers.

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Sometimes the savings that comes from doing it yourself can be blown away with one mistake.

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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