TPO Membrane Roofing Installation – How to Install TPO Roofing | GAF
Learn how to install TPO roofing like a pro. GAF's Dave & Wally guide you through TPO membrane installation step by step in this comprehensive TPO roofing installation video, which includes installation instructions, details, and methods.
You can find plenty of other great roofing installation videos from Dave and Wally, ranging from initial inspection videos all the way down to the details of specific tools and installation methods.
Learn more here:
Full Roofing it Right Playlist:
Roof Project from Start to Finish Videos:
Project Kick-Off:
The Master’s Eye: Inspection:
Performing Core Cuts:
Taking Roof Measurements:
Going Over Your GAF Tapered Design Group Plan:
Roof Tear Off:
Post-Tear-Off Assessment:
Installing Insulation: 3” Fill:
Roofing It Wrong: HVAC Mishap:
Installing a Tapered System:
Butting Different Tapered Roof Panels Together:
Installing TPO Membrane:
Sheet Layout:
Dave or Wally there are some roofing companies around me that are doing TPO on mobile home roofs. My question is what is the best welder to use on a roof with a pitch would a semi auto work for this or hand welder
Scott, a robot is always a great option when you have an opportunity to use one because you’re able to control multiple variables. You can set the speed, pressure (with the weights), and temperature with the robot whereas you are dependant on the technician with the hand welder.. With the amount of space that you have though, and the amount of power available, a hand welder may be appropriate because you’d need probably run an extension cord from a generator on the ground to get enough juice for the robot. So there are a lot of things to consider.
Hi Scott. We recommend using a heat gun that is designed to weld thermoplastic roofing membrane such as TPO.
That’s like a 6 man job done in 2 days and I can definitely weld better than chino
How come they didn’t kick the roll to eliminate the wrinkles? I didn’t see tack welds before running the doggie
Rigel, thanks for your response and to answer your question regarding wrinkles and tack welds.
The minor wrinkles that you may be seeing will dissipate over time and the sheet will tighten up.
In regards to the tack welds you are referring to, I am assuming that you mean back tacks?
If so you should avoid doing tack welds/ back tacks on a MA system. I’m assuming that you have been on a roof that has a MA system on a windy day and have seen the roof “pillowing” ? ( for lack of a better term)
If you do tack welds/ back tacks the sheet will pull on those VS pulling on the welded seam and eventually pop or tear at these tack weld/ back tack areas.
Once this happens in these areas you could expose the underlying scrim which will only get larger over time, thus opening up the possibility fir leak issues. So we highly recommend not to do tack welds/ back tacks on a MA system
Can you install TPO directly over roof sheathing?
We’re happy to help, Miguel!
@GAF Roofing Thank you for your response
Hi, Miguel. It depends on how and where you’re looking to install the TPO. Here are a few options:
For the field of the roof, if it’s mechanically attached, you will need to use a slip sheet, fleece-back membrane, or an approved insulation. If adhered, it should be to an approved insulation board and for RhinoBond, it should be installed to an approved insulation.
If you’re looking to install it over a wall, you can adhere smooth TPO with 1121 or QuickSpray adhesives. We recommend contacting our team directly at 800-766-3411 if you have any other questions.
I see you not tied off !
I know someone who welds faster and better than an auto welder believe it or not.
How about if it was 30, degree then how would you do your math so it would put you in the ball park for speed
Jay, in general, the equation is to find a ballpark setting to find the weld window. Installers should always conduct test welds in the morning, and after lunch to ensure that the settings their using on the welder are still producing a good weld. I recommend watching Wally’s welder set-up video https://www.youtube.com/watch?v=7obRsKK67ag as he shows the proper way to set up a welder to find the optimal settings.
Got technical question of Lyiester hand welder, using a 2000 watt peak predator generator. The thought process on this case. Should a 3500 watt be used?
Our technical experts will be happy to answer any questions you have. You can reach them at 800-766-3411.
chino when yuo re going to learn how to roofing .Nice photo for OSHA working out side of flags wearing harnees but not tie in .is $10,000 fine for GAF
Thanks for your comment Fernando. For this roofing project, a designated roofing monitor was assigned throughout the job.
How much is the square for a tpo roof remove and replace, the old roof is tpo aswell and there isnt any insulation underneath and most of it is glued to the plywood. Thanks
Hi, Gonzalo. We recommend reaching out to a GAF certified contractor for a quote. Enter your zip code on our website to find a contractor near you: https://bit.ly/2Mu1fKl
@Sage Zayn Instablaster 😉
@Gordon Crew Thanks for your reply. I got to the site on google and I’m waiting for the hacking stuff now.
I see it takes quite some time so I will get back to you later with my results.
@Sage Zayn you are welcome 😀