Hold that roller flat! Way too many stops and starts on a t patch too.

A t-splice patch like that should be done with only one start and stop, this one has at least 4. In addition, you hold your roller at an angle, producing what used to be referred to as an alligator weld. Welding like this causes small gaps of air between each pass, weakening the overall Bond and causing the patch to fail prematurely, and that's if you're lucky enough to have actually managed to get it to pass a probe after that. While an alligator weld does decrease the amount of force you have to put in a roller, and can reduce the strain on your wrist, it is not an effective that's it for welding TPO. I say specifically TPO because PVC has a bleed out an alligator welding can work on PVC if done with the roller with a smoothed Edge. The other thing I would note on the top portion of that t patch, you initially heated it up and stretched it out to meet the seam, but then pulled it back up without giving it enough heat to fully get it back down. Any experience welder knows that that's going to lead to a miniature Cold weld. However I will say this isn't really bad work, I would say this is about average of what I see when I inspect TPO. It will pass the city non-inspection, and most manufacturer Reps don't really focus on joints. So assuming that you guys go for ndl or L&M warranties the roof should be fine.

The line details are OK, and the way you grab the heat gun and were positioned aren't the best, but you got it.

He left a serious void on the left seam

@christianflores2463

6 жыл бұрын

Bob Pift you are right

@effseven87

2 жыл бұрын

i saw it too lol

@Yo-broski

2 ай бұрын

Yup

I startding like 6 months ago

I use my welder normally at level 5 of heat for TPO is that ok

@brandonmccall3661

6 жыл бұрын

Miguel Angel Hernandez depends on the temperature outside. And the thickness of the membrane, 0.45 is better around 7 at all times. 0.60 is dependent on the weather. If it’s hot lower it to 6-7 if it’s cold use 8-9. And unsupported should never be done above 7

@truebuilding6333

Жыл бұрын

78 depends on your skill level

@twbj3245

Жыл бұрын

Just depends on how fast u can go and what the weather is! I keep mine no less then 7 personally.

@Sack_G

Жыл бұрын

Depends on what mil width your membrane is and if it’s supported or not

@BRIANMASON1202

9 ай бұрын

I do all my field and unsupported on 9 😎

What kind of guitar is that?

This video pissed me off and gave me a head ache…I bet he lap sealed that t-patch too.

@twbj3245

Жыл бұрын

Yea I could have done about 3 of them in that time.

Wheres the pie roller?

So wait.... where is his detail roller?

Beginner

That’s a good glue gun !

I promise you I can probe that last right coner side wide open smh never have your heat gun in that angel move to put that heat gun as farthest inside that patch you can and work its self out

No

Technique is a lil sloppy. Roller is too close to the nozzle, and the angle of he gun was a little too steep on the last weld. 8/10.