I've had decent luck around 800°F myself, but honestly, isn't it more about feel than exact numbers? I remember my first few seams—I was so worried about scorching the membrane, I kept the temp way too low and ended up with weak welds. Had to redo a whole section...not fun. Now I just watch closely for that slight glossiness as I go. Anyone else rely more on visual cues than the temp gauge?
Yeah, I get what you're saying about visual cues. Honestly, after a while, the temp gauge becomes more of a suggestion than anything else. I remember one summer job—it was blazing hot out, and I swear the membrane was practically welding itself before I even touched it. Had to dial way back on the heat gun or risk melting straight through. Ever notice how ambient temps mess with your settings? Seems like every season I'm tweaking things a bit differently. Curious if anyone else finds themselves adjusting technique based on weather or if that's just me being overly cautious...
Yeah, ambient temps definitely throw things off. Had a similar experience on a job last summer—roof surface was already scorching before I even started welding. Ended up dialing down the heat gun quite a bit and moving faster to avoid burning through. Funny thing is, I've also noticed humidity messing with weld quality...seems like moisture in the air can really change how the seam sets. Ever had issues with humidity affecting your welds, or is that just me overthinking it?
Humidity affecting weld quality? Hmm...sounds a bit like overthinking, but honestly, moisture messing with adhesives and paints is pretty common, so why not welds too? Ever notice it worse in early mornings or after rain? Could be something there.
I've noticed something similar when welding TPO on my garage roof. Early mornings, especially after a damp night, seemed to make the welds less consistent. Could be coincidence, but moisture definitely plays a subtle role in weld quality.
