In torch down roofing installation, proper technique involves laying base material in the center and stretching it outward with feet to create flaps, then torching with a 4-inch overlap (rather than the common 2-inch overlap) to ensure waterproofing; before applying the smooth layer, all loose sand must be swept or blown off to ensure the torch adheres properly to the surface.
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How Roofs Actually Get Waterproof (Torch Down Roofing)Added:
So, I'm doing this quick video to show the importance of laying down base. Put one in the middle and then just start stretching it out with your feet like flaps right here. So, this is where the flame is going to go. And when you're torch those, a lot of people just do 2 in. I like to do four because So, we have our base laid out. Ready to start putting down the smooth. Make sure all that loose sand, sweep or blow it off. That way your torch sticks. So what we did is we torched from here to there. It's open.
Now we're going to come back.
[sighs]
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