Humidity's definitely a pain, but honestly, calling it quits early isn't always practical. I've found that adjusting workflow helps more—like shifting the trickier welds to early morning or late afternoon when conditions are better. Last summer, I pushed through a hot day and regretted it later with rework. Now, if conditions are borderline, I just slow down and double-check more often. Saves headaches later.
Good points on workflow adjustments—I've found similar strategies helpful. But I'm curious, has anyone noticed a specific temperature threshold where TPO weld quality consistently drops off, regardless of humidity? Seems like there's a sweet spot that's tough to pinpoint...
I've noticed something similar—there definitely seems to be a point where things start going sideways, temp-wise. From my experience, once you get into the mid-90s (Fahrenheit), weld quality can get pretty inconsistent. I remember one summer we had a stretch of days hitting around 95-97 degrees, and no matter how careful we were with speed and pressure, the seams just weren't bonding right. It wasn't even particularly humid those days, so humidity wasn't the culprit.
I agree it's tricky to nail down an exact sweet spot because other factors like direct sunlight and surface temps come into play too. But generally speaking, once you're pushing past that mid-90s mark, it's probably worth reconsidering your timing or workflow. You're definitely not alone in noticing this...
Yeah, I've run into that too. Last summer we had a job where it hit around 96 degrees, and even though we tried adjusting everything—speed, pressure, even the angle—it was still hit or miss. We ended up shifting our welding schedule to early mornings or late afternoons when the surface cooled a bit. Not ideal, but it made a noticeable difference. Seems like once you're into the mid-90s, you're really fighting an uphill battle...
"Seems like once you're into the mid-90s, you're really fighting an uphill battle..."
Yeah, that's been my experience too. We had our roof redone last August, and the crew mentioned similar issues—said the heat made welding tricky and slowed things down quite a bit. They ended up doing most of the welding early in the morning. Curious though, does humidity play a big role too, or is it mostly just about temperature?
